Crushing | 91±¬ÁÏ & Screening /category/crushing-blog/ Mon, 19 Oct 2026 14:57:21 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.7 /wp-content/uploads/2020/08/favicon.png Crushing | 91±¬ÁÏ & Screening /category/crushing-blog/ 32 32 A Smart Choice: Plant Hire for Commercial Construction /a-smart-choice-plant-hire-for-commercial-construction/ Tue, 16 May 2023 08:17:01 +0000 /?p=1565 If you own a busy commercial construction company and are looking to excel, then you will probably know all the costs associated with owning heavy machinery and equipment for your projects. But, there is a solution, you can opt to plant hire for any scale of construction project within the UK.

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If you own a busy commercial construction company and are looking to excel, then you will probably know all the costs associated with owning heavy machinery and equipment for your projects. Not only that but finding trained professionals to operate these machines can be a challenge!Ìý

But, there is a solution, you can opt to plant hire for any scale of construction project within the UK. At 91±¬ÁÏ, we have been providing commercial construction companies with equipment since 2005, and we know how important it is to have the right equipment for the job.Ìý

In this article, we will discuss the benefits of plant hire for commercial construction companies, the cost-effectiveness of plant hire, the variety of equipment available, maintenance and so much more.Ìý

What is Plant Hire?

Benefits of Plant Hire for Commercial Construction Companies

Maintenance and Repair of Plant Hire Equipment

How to Choose the Right Plant Hire Company

Common Misconceptions 91±¬ÁÏ Plant Hire

What is Plant Hire?

Let’s get the basics covered first, plant hire is the process of renting heavy machinery and equipment for construction projects. Companies can rent equipment for a specific project or for an extended period of time, meaning that these costly machines will only be working when you need them.Ìý

Plant hire companies, such as 91±¬ÁÏ,Ìý offer a range of equipment, including aggregates, screen crushers, crushers and so much more to businesses within the commercial and private sectors.Ìý

Plant hire companies will also provide operators and maintenance services for the equipment, making any project easier and more efficient.

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Benefits of Plant Hire for Commercial Construction Companies

There are many benefits of plant hire for commercial construction companies. Let’s take a look at some of the main benefits below.Ìý

Cost Effective: One of the biggest advantages is the ability to rent equipment only when it is needed. This reduces the overall cost of the project since your commercial construction company will not have to purchase and maintain expensive equipment that may only be used for a short period.

Fully Trained Staff: Plant hire companies also provide operators and maintenance services, reducing the need for your construction company to hire additional staff.

Flexible: Another benefit of plant hire is the flexibility it provides. This means your business can rent equipment for specific projects and return it when the project is completed. This allows your construction company to use different equipment for different projects, depending on the requirements of each project.

Customisable Solutions: Plant hire companies also offer a variety of equipment, allowing you access to a full range of equipment to complete the project. If you are in need of customised equipment, we here at 91±¬ÁÏ can work with you to design the perfect solution.Ìý

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Maintenance and Repair of Plant Hire Equipment

One thing that a lot of people often overlook is that plant hire companies provide maintenance and repair services for the equipment they rent.Ìý

This reduces the downtime of equipment due to repairs and ensures that the equipment is always in great condition. Plant hire companies, like us at 91±¬ÁÏ, also provide operators who are trained and experienced in using the equipment, reducing the risk of damage to the equipment.

This means your commercial construction company is not responsible for maintaining and repairing any of the large equipment, saving your business money and time for your project.Ìý

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How to Choose the Right Plant Hire Company

We know that choosing the right plant hire company is important for the success of a construction project.

This is why, we have put together some tips for finding the right plant hire company for your commercial construction project.Ìý

Research: The first step is to research different plant hire companies and compare their services and pricing. You will want to make sure that you are getting a service that is within your project’s budget and time scale.

Read the Reviews: It is also important to read reviews and testimonials from previous customers to ensure that the company you go with has a good reputation. Make sure to read our case studyÌýon our website.

Equipment Range: Another important factor is the range of equipment available. You should choose a plant hire company that offers a wide variety of equipment, or, will create custom solutions for your project.Ìý

Maintenance & Repairs Included: It is also important to choose a company that provides maintenance and repair services for the equipment they rent. You may also want to look at companies that provide fully-trained staff to operate these machines.

Locations: The final and most obvious tip is to find a plant hire company that services your area or project location. We at 91±¬ÁÏ currently provide all of our plant hire solutions nationwide, so, if you live within the UK and are looking for custom plant hire solutions that go straight to your project, get in contact with us today.Ìý

Common Misconceptions 91±¬ÁÏ Plant Hire

There are some common misconceptions about plant hire that can prevent companies from using this cost-effective solution.

ÌýLet’s clear up a few of these misconceptions below:Ìý

Plant Hire is More Expensive: One misconception is that plant hire is more expensive than purchasing equipment. However, renting equipment only when it is needed reduces the overall cost of the project.

Plant Hire is Only For Large Projects: Another misconception is that plant hire is only for large construction projects. However, plant hire companies offer a range of equipment, including mini excavators, which are ideal for smaller projects.

Plant Hire Makes Projects Take Longer: The last misconception on our list is that plant hire makes your projects take longer, which is completely false. Due to plant hire being outsourced to another company, the plant hire company’s entire job is to maintain and provide you with equipment on time and in excellent condition. This means that any issues that arrive during the project will be fully handled, leaving you to focus on the project at hand.Ìý

We hope you have found this information useful and informative, if you are in need of plant hire for your commercial construction project, make sure to visit our website today.

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The Importance of Stone Crusher Machines /aggregates-the-pros-and-cons-of-sand-in-construction-2/ Tue, 21 Mar 2023 10:13:11 +0000 /?p=1494 The world we live in today is heavily reliant on infrastructure – from buildings and bridges to roads and highways. And at the heart of any construction project lies a crucial element: the use of stone crusher machines. That’s why we have created this blog to help you understand the key benefits of a stone crusher machine.

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The world we live in today is heavily reliant on infrastructure – from buildings and bridges to roads and highways. And at the heart of any construction project lies a crucial element: the use of stone crusher machines.Ìý

These machines play a vital role in breaking down large rocks into smaller pieces, which can then be used to create a variety of construction materials, from aggregates to sand. In a world where infrastructure development is key to economic growth, the importance of stone crusher machines cannot be understated. They are essential in ensuring that construction projects are completed on time and within budget, while also providing a sustainable solution for the efficient use of natural resources.

91±¬ÁÏ have been supplying the North East with bespoke solutions to their stone crushing needs, both for commercial and construction projects for years. That’s why we have created this blog to help you understand the key benefits of a stone crusher machine. We will also explore the significance of stone crusher machines in infrastructure development and how they continue to shape the world we live in today.

The role of stone crusher machines in infrastructure development

The history of stone crusher machines

Types of stone crusher machines

Features and advantages of stone crusher machines

Stone crusher machine maintenance and safety

Stone crusher machine innovations and advancements

The role of stone crusher machines in infrastructure development

Stone crusher machines are used in a wide range of applications in different industries like mining, construction, and recycling. They are used to break down large rocks into smaller pieces that can be used for construction materials and they are essential for the construction industry, as it provides the necessary materials for building new infrastructure projects.Ìý

The primary use of stone crusher machines is in the production of aggregates, which are used in the construction of roads, bridges, buildings, and so much more. These machines are also used to crush concrete, and asphalt which can then be recycled for use in new construction projects, making them useful and planet friendly.

Stone crusher machines are also essential in the mining industry, where they are used to break down large rocks into smaller pieces that can be processed for the extraction of minerals. The use of these innovative machines has made it possible to extract minerals from deep within the earth, which was not possible in the past. This has led to the development of new mining techniques, which have increased the efficiency and safety of mining operations.

If you are looking to hire aÌý stone crusher machine that is specifically designed to fit your project, get in touch with us today.Ìý

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The history of stone crusher machines

We have come a long way since ancient times in terms of construction, but did you know that the use of stone crusher machines dates back to ancient times when the construction of roads and buildings was first started? In fact, the earliest stone crusher machines were hand-held stones, where the weight of the stone provided a boost to muscle power, used against a stone anvil.

The industrial revolution brought about a significant change in the way stone crusher machines were used. The invention of steam-powered machines in the mid-19th century allowed for the efficient and rapid processing of large quantities of stone. The use of these machines revolutionised the construction industry, making it possible to build larger and more complex structures.

For the last few decades, companies like 91±¬ÁÏ have made it possible to get tailor-made solutions to your stone-crushing problems, meaning you can get exactly what you want, every time.Ìý

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Types of stone crusher machines

There are several types of stone crusher machines available in the market today. Each machine is designed to handle a specific type of rock or stone and can be used in a variety of applications. The most commonly used types of stone crusher machines are jaw crushers, impact crushers, cone crushers, and hammer crusher.Ìý

Jaw Crusher: Jaw crusher machines are used for the primary crushing of stones and rocks. They are designed to crush large rocks into smaller pieces and are capable of handling a wide range of materials, including concrete, asphalt, and other construction waste materials.

Impact Crusher:Ìý Impact crusher machines are used for the secondary crushing of stones and rocks. They are designed to crush rocks into smaller pieces and are commonly used in mining and quarrying operations.

Cone Crusher: Cone crusher machines are used for crushing stones and rocks into smaller pieces. They are designed to handle a wide range of materials, including hard and abrasive stones, and are commonly used in the mining and quarrying industries.Ìý

Hammer Crusher: Hammer crusher machines are used for crushing stones and rocks into smaller pieces. They are commonly used in the construction industry for the production of aggregates.

If you want more details on our stone crusher solutions, be sure to check out our Contract Crushing and Screening page now.ÌýÌýÌý

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Features and advantages of stone crusher machines

Stone crusher machines are designed to provide several benefits to the construction industry.Ìý

Let’s take a look at some of the main benefits of a stone crusher machine:Ìý

Cost Effective: They offer a cost-effective solution for the production of aggregates, which are used in the construction of roads, bridges, buildings, and other infrastructure projects.Ìý

Energy Efficient: Stone crusher machines are also designed to be energy-efficient, which helps to reduce the overall cost of construction projects.

Stones in Bulk: One of the main advantages is that these machines can process large quantities of rocks and stones quickly and efficiently. This helps to save time and labour costs, which are essential in the construction industry.Ìý

Easy to Operate: Stone crusher machines are also designed to be easy to operate and maintain, which helps to reduce downtime and increase productivity.

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Stone crusher machine maintenance and safety

Stone crusher machines are complex machines that require regular maintenance to ensure their efficient operation. Regular maintenance helps to reduce downtime and increase productivity, which is essential in the construction industry. It is essential to follow the manufacturer’s guidelines for maintenance and safety to ensure that the machine operates at its best.

Safety is also an essential consideration when using stone crusher machines. These machines can be dangerous if not used properly, and it is essential to follow all safety guidelines to prevent accidents and injuries. It is also advised to wear protective gear, follow all safety procedures, and ensure that the machine is operated by trained personnel.

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Stone crusher machine innovations and advancements

The stone crusher machine industry is constantly evolving, with new technologies and innovations being developed every year. Some of the latest advancements include the development of hydraulic systems, which allow for the efficient and rapid processing of large quantities of rocks and stones.Ìý

Other innovations include the use of AI and machine learning, which help to improve the efficiency and accuracy of stone crusher machines.

The use of sustainable materials and practices is also becoming increasingly important in the stone crusher machine industry. Manufacturers are developing new machines that are designed to be environmentally friendly, which helps to reduce the impact of construction projects on the environment.

We hope you have found this guide useful and informative, if you are in need of a contract crusher, aggregates or plant hire, be sure to check out our website or get in touch with us today.Ìý

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Types of Sand in Construction: Pros, Cons and How to Choose /aggregates-the-pros-and-cons-of-sand-in-construction/ Thu, 16 Feb 2023 15:11:47 +0000 /?p=1473 We at 91±¬ÁÏ are proud to be one of the biggest aggregate and sand suppliers within the UK and have created this guide to outline the pros and cons of aggregates and sand within the construction industry. In this blog, we’ll discuss the different types of aggregates, the advantages and disadvantages of sand in construction, and how to choose the right type of sand for your specific construction project.

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Sand goes into more of a build than most people notice. It’s in the concrete under the slab, the mortar between the bricks, the screed under the floor, the bedding under the block paving and the trench around the cable. Order the wrong grade and the job either fails or gets done twice.

91±¬ÁÏ has supplied sand and aggregates from Darlington for over 20 years serving the North East, and this guide is the one we’d hand to a customer who rang unsure what to order. It covers the five sands most used on site, what each is for, where each is the wrong choice, and how to check a load. It’s written for groundworkers, builders, civils contractors and site managers, and the same rules apply to a homeowner ordering a bulk bag for a patio. If you already know what you need, go straight to our sand supply page.

What construction sand is

Construction sand is the fine end of the aggregate range. In UK practice, fine aggregate is material that passes a 4 mm sieve, so sand covers everything from a coarse 4 mm grit down to particles you’d struggle to see. Gravel and crushed stone sit above that line.

Sand is sold washed or unwashed. Washed sand has had the silt and clay rinsed out and suits concrete and mortar. Unwashed, or as-dug, sand keeps its fines, costs less and suits bulk fill. For the wider family of gravels, crushed stone and recycled material, see our guide to aggregate types and grades.

Types of sand used in construction

The trade name of a sand usually tells you its grain size, its grain shape and how clean it is. Sharp sand is coarse and angular, for concrete and bedding. Building sand is fine and rounded, for mortar. Fill sand is unwashed bulk material for backfill. Cable sand is screened fine sand for protecting buried services. Industrial sand is high-purity silica for specialist uses.

Sharp sand

Sharp sand is a coarse, washed sand with angular grains. It’s also called grit sand or concreting sand, and it’s typically graded 0/4 mm, meaning the grains run from dust up to 4 mm. The angular grains lock together under load.

Use sharp sand for mixing concrete, for floor screeds, for the laying course under block paving and flags, and for the base coat of render where a coarser mix is specified. It also suits lawn top-dressing and drainage in heavy soil.

Don’t use it for bricklaying mortar. The coarse grains make the mortar harsh to work and the joints won’t finish cleanly, which is the job building sand does. If you’re bedding block paving, order sharp sand.

Building sand

Building sand, also called soft sand or bricklayers’ sand, is a fine sand with rounded grains. The rounded grains give a mortar that’s smooth, plastic and easy to spread, and they let the trowel leave a clean joint.

Use it for bricklaying and blockwork mortar, for pointing, and for render top coats. It’s the sand for anything worked by hand and finished neatly.

Don’t use building sand in concrete or under paving. Rounded grains don’t lock together, so a paving bed made from soft sand will settle, and concrete made with it will be weaker than the mix design assumes. Colour varies by pit, from yellow to red, which matters when pointing has to match existing work or when a job runs across several deliveries. Ask for a sample, and order enough from one source to finish the visible work.

Fill sand

Fill sand is a general-purpose sand sold for bulk, where the job is to occupy space rather than to bond or carry a finished load. It’s usually as-dug or lightly graded, so it may contain some silt, clay or small stone.

Use it for backfilling trenches and excavations, for levelling and raising ground before a sub-base goes down, as a sub-base layer under slabs and driveways where the spec allows a sand blinding, and for filling sandbags. It’s the cheapest sand on this list and the right choice when the sand will be buried and compacted.

Don’t use fill sand in mortar or concrete. The fines and any clay content weaken a mix and hold water, and if the spec calls for a washed sand, fill sand won’t meet it.

Cable sand

Cable sand is a fine, screened sand used to bed and surround underground cables, ducts and water pipes. Screening removes the stones and sharp particles that would otherwise press into a cable sheath or pipe wall when the trench is backfilled and compacted. Its grain is finer and more uniform than sharp sand.

Use it wherever a utility spec calls for a sand bed and surround, laid below and above the service before the marker tape and main backfill go in. The utility’s specification sets the bed and surround depth, and utility companies and local authorities often name the grade they accept, so check the spec before ordering. Where a thermal specification such as ENA TS 97-1 applies to buried power cables, confirm the grade before you order. If you’re opening a long trench and need an excavator with an operator, our plant hire team works alongside sand deliveries.

Cable sand isn’t a structural material. It’s no substitute for concrete, it isn’t a paving bed and it shouldn’t go in a mix. Its job is protection.

Industrial and silica sand

Industrial sand is a high-silica sand processed to a tight grading and a consistent chemistry. On a construction site it turns up in water filtration beds, as a blasting medium and in specialist mortars and grouts where a spec names silica content. Off site, the same material feeds glassmaking and foundry moulds.

It’s rarely the right choice for general construction, because the processing that a glassworks pays for adds nothing to a concrete mix. Order it when a specification names silica content or a specific grading; otherwise sharp sand does the structural job for less.

Pros and cons of sand in construction

Sand is on every site for four reasons. It’s available almost everywhere, so supply is rarely the constraint. It costs less than cement, crushed stone or anything manufactured. It’s workable, whether shovelled, barrowed, pumped or tipped from a lorry into a hopper. And it drains well, so a sand layer under paving or against a wall moves water away from where it does harm.

Its weaknesses come from the same properties. Loose sand has no strength of its own, so it shifts under wind, water and traffic until it’s confined or bound with cement, and an unrestrained bed migrates from under the paving it supports. It’s sensitive to moisture: a wet stockpile throws off the water-cement ratio, and a dry, exposed pile blows away. Unwashed sand can carry clay, silt or salt that weakens a mix, and a clean pile picks up mud if it’s stored badly.

The practical rule is that sand is a good material inside something and a poor one on its own. Bind it, confine it or bury it, and it performs.

How to choose the right sand

Start with the job, because the job sets everything else.

Job Sand Why
Concrete, floor screed Sharp sand Angular 0/4 mm grains lock together and give strength
Block paving and flag bedding Sharp sand Stays put under load and drains
Bricklaying, blockwork, pointing Building sand Fine rounded grains give a workable mortar and a clean joint
Render top coat Building sand Smooth finish; use sharp sand for a coarse base coat if specified
Trench bed and surround for cables and pipes Cable sand Screened, stone-free, protects the service
Backfill, levelling, sandbags Fill sand Cheapest option where the sand is buried and compacted

Then check grain size and shape against the spec. Sharp sand for concrete is usually 0/4 mm and a mortar sand is finer, often 0/2 mm. Where a specification names a grading, order to it and ask for the grading sheet.

Colour matters only where the sand shows. Match pointing or render to existing work with a sample, and if a visible job takes several loads, ask for them from the same source. For anything buried or bound in concrete, colour is irrelevant.

Source tells you about cleanliness. Washed sand suits concrete and mortar; as-dug sand suits fill. Marine sand can carry salt and needs washing before it goes near reinforced concrete, so ask about origin if you’re unsure.

Cost comes last. The price gap between grades is small next to the cost of lifting a failed paving bed or raking out crumbling mortar.

Sand grading and testing

Grading is the spread of particle sizes in a sand. It’s measured by sieve analysis: a dried sample passes through a stack of sieves and the weight held on each one is recorded. The result is a grading sheet showing the percentage passing each sieve, which tells you whether a “sharp sand” is a true 0/4 mm or something finer sold under the same name. UK sands for concrete are graded to BS EN 12620 and sands for mortar to BS EN 13139, and each standard sets limits on how much material may pass each sieve. All materials we supply conform to current European and UK standards where appropriate, and you can ask for a grading sheet with your order.

On site, two simpler checks cover most jobs. A silt test needs a jar, a handful of sand, water and a few hours of settling; if the silt layer that forms on top is more than about a tenth of the sand depth, the sand is too dirty for concrete or mortar. A squeeze in the hand tells you how much water the sand is holding, which changes how much water goes into the mix.

For a domestic patio, a clean stockpile and the silt test are usually enough.

Alternatives to sand

For some jobs another aggregate does the work better. Crushed rock fines, sometimes sold as grit or crusher dust, are used in place of sharp sand under paving where a spec allows, and they lock together at least as well; we produce crushed rock fines from our crushing service as part of the screening process. Manufactured sand, made by crushing rock to a sand grading, goes into concrete where natural sand is scarce or specified, and its angular grains behave much like sharp sand. Recycled aggregate, meaning crushed concrete, crushed brick and road planings, replaces fill sand for bulk fill and sub-bases and is often cheaper. None of these replaces building sand in mortar or render, because nothing else leaves a clean finish under the trowel.

How we supply sand

91±¬ÁÏ & Screening stocks sharp sand, fill sand and cable sand, supplied as loose loads and bags. Other grades can be sourced on request if your project needs something specific. Collect from our County Durham depot, or have it delivered across the North East, with wider delivery by arrangement.

Prices depend on grade, quantity and delivery distance, so there’s no rate card on this page. Call 01325 808760 or get a quote with your postcode and tonnage. Trade and commercial orders come first, and bulk domestic orders are welcome.

Need aggregates, crushing or hire for your project?

91±¬ÁÏ & Screening has over 20 years’ experience serving the North East. Call us today for a fast, no-obligation quote.

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How to Choose the Right Stone for Your Project: A Guide to Understanding Stones and Their Crush Strength /how-to-choose-the-right-stone-for-your-project/ Mon, 23 Jan 2023 11:46:26 +0000 /?p=1451 Whether you are building a retaining wall, laying a patio, or using them for commercial applications, selecting the right stone is an essential part of the process. Choosing the right stone for your project is very important and can make all the difference to the overall outcome and finish.Ìý With the variety of stones available, it can be difficult to know which one is best for your project. That’s why, we at 91±¬ÁÏ have created this guide to provide you with an overview of the different types of stones, their crush strength, and how to choose the right.

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Whether you are building a retaining wall, laying a patio, or using them for commercial applications, selecting the right stone is an essential part of the process. Choosing the right stone for your project is very important and can make all the difference to the overall outcome and finish.Ìý

With the variety of stones available, it can be difficult to know which one is best for your project. That’s why, we at 91±¬ÁÏ have created this guide to provide you with an overview of the different types of stones, their crush strength, and how to choose the right one for your project.Ìý

With a little knowledge, you’ll be able to choose the right stone for your project and create a beautiful, long-lasting outdoor space or structure.

Considerations when Choosing the Right Stones

As a building material, stones are one of the oldest, dating back more than 10,000 years. It is also one of the most versatile materials, with a wide range of different types of stone available.Ìý

Understanding the various types of stones and their crush strength is key in selecting the right one. The type of stone you choose will depend on a number of factors, including where you plan to use it and the type of project you’re working on. Below we have provided some of the key things you should consider before choosing your materials.

  • Consider how the stone will be used. Is it for a patio? A pathway? A fire pit? Knowing how the stone will be used will help you determine which type of stone will be best.

  • Which Stone do you or your client like the most aesthetically?

  • Before you choose the stone for your project, you’ll want to consider your budget, and how much will it cost you or your client.

  • Of course, you’ll also want to make sure you choose a stone that is appropriate for the project. You don’t want to end up with a beautiful stone only to find out it breaks halfway through.

  • Knowing the stone’s crush strength as well as its other properties will help you find the right stone for your project, as the higher the crush strength the more likely it will not break when fitting your project.

  • You’ll want to consider the stone’s durability, as you will want to make sure the stone is durable enough for your project. Granite, for example, is a very durable stone, making it ideal for countertops, walkways, and landscaping.Ìý

Let’s go through some of the main types of stones on the market today.Ìý

    • Granite is a popular stone for countertops, fireplaces, and landscaping. It is typically used for kitchens and bathrooms as it has a lovely finish.Ìý

    • Limestone is commonly used for pathways and patios as it is a durable material which holds up well in all weather.Ìý

    • Gabbro is a great stone for commercial application as it is the cheapest and most durable on the market. However, the finish is not as aesthetically pleasing as others on our list.Ìý

    • Slate is a soft stone that is mostly used for roofing or tiling on homes.Ìý


Understanding stone crush strength

The crush strength of a stone is the amount of pressure it can withstand before breaking. This is measured in psi (pounds per square inch), with a higher psi meaning the stone can withstand higher pressure.Ìý

The amount of pressure a stone can withstand depends on the type of stone and where it is being used.Ìý

Granite, for example, has a higher crush strength than limestone, meaning that granite can withstand more pressure than limestone. This is why considering your stone’s crush strength is important for your project as, for example, using limestone on a pathway may be more susceptible to damage from foot traffic than granite would be.


Stones with the highest crush strengthÌý

So, which stone has the highest crushing strength?

  • Gabbro: 9 psi – Gabbro is a dense but overlooked stone, that is typically used in pathways and walkways. It is not as aesthetically pleasing as some of the other stones, but it makes for a good, durable stone that is perfect for commercial building works. Ìý

  • Granite: 6-7 psi – Granite is a dense stone and has a high level of resistance to heat, making it ideal for countertops, fireplaces, and outdoor fire pits. It is a more expensive stone, but it does make for a beautiful addition to your outdoor space. Ìý

  • Limestone: 3-4 psi – Limestone is also commonly used for patios and pathways. It is a softer stone and is typically less expensive than granite. While it is naturally resistant to water, you’ll want to seal it to prevent staining. Ìý

  • Slate: 3-4 psi – Slate is a soft stone and is used primarily for roofing and decorative projects. It is not ideal for walkways or patios, but it can make a great addition to your outdoor living space.


How to Crush StonesÌý

Want to know how to get a commercial quantity of stones crushed and sorted? Then you need to look into crusher screening. Crusher screening is a process that involves using a crusher to break down rocks into smaller pieces and is an integral part of the stone-crushing process.

It can be used to produce aggregate or other construction materials such as gravel, sand, and rocks for your projects. This process can be used to produce a variety of different products, depending on the size and type of rock being crushed.Ìý

The first step in the crusher screening process is to select the appropriate crusher. This will depend on the type of rock to be crushed, such as hard or soft stones, and the desired size of the resulting aggregate or product.Ìý

Generally, there are two types of crushers used for crushing stones:Ìý

  • Jaw crushers work by squeezing the rocks between two plates. Find out more about Jaw Crushers here.Ìý

  • Impact crushers use a hammer to break up the material.Ìý

Once the type of crusher has been selected, the next step is to determine the size of the crusher. The size of the crusher will depend on the size of the stones to be crushed and the desired output. Looking for the perfect size crusher for your project, contact us today.Ìý

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How Crusher Screening WorksÌý

Generally, crusher screens are used to further reduce the size of the stones. This is done by passing the stones through a series of screens with different sizes and shapes. The stones that are too large or too small will not pass through the screens and will be discarded.Ìý

The stones are fed into the crusher, this can be done manually or mechanically. If done manually, the stones must be placed into the crusher one by one. If done mechanically, the stones will be fed into the crusher using a feeder and conveyor belt. Once the stones have been fed into the crusher, it will then be turned on and the crushing process will begin.Ìý

The crushed stones will need to be screened again to ensure all of the desired sizes are delivered. This can be done by passing the stones through the same series of screens as before. Once the stones have been sorted and the desired sizes are present, the stones can then be used for aggregate, gravel, sand, and other products.Ìý

Crusher screening is an integral part of the stone-crushing process and is an important step that should not be overlooked.

We hope you have found this guide helpful, if you would like more information on crushed stones, aggregates or contract crusher screening, please see the resources below or contact us today.Ìý

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More Resources:Ìý

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What are Crushed Stones Used for? /what-are-crushed-stones-used-for/ Mon, 03 Oct 2022 11:33:18 +0000 /?p=1285 The majority of people lack a thorough understanding of construction materials that work outside the trade. It’s easy to believe that only professionals have any knowledge of them and their uses. This is particularly true when it comes to stone, one of the most fundamental building elements. We can all recognise a stone when we see one, and we all know how significant stones are in building, but what precise roles do stones play in various construction projects?   Here at Tynes Tees Crushing, we want you to feel empowered with a wealth of knowledge before handling one of our.

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The majority of people lack a thorough understanding of construction materials that work outside the trade. It’s easy to believe that only professionals have any knowledge of them and their uses.

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This is particularly true when it comes to stone, one of the most fundamental building elements. We can all recognise a stone when we see one, and we all know how significant stones are in building, but what precise roles do stones play in various construction projects?

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Here at Tynes Tees Crushing, we want you to feel empowered with a wealth of knowledge before handling one of our Crushers. In this blog post, we will go further into the various kinds of crushed stone, their production processes, and their fundamental uses.Ìý

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The stone-crushing process


Using a stone crusher in a quarry or other location with an abundance of huge rocks is the first step. Although there are many different kinds of crushers, all of them have the same primary purpose: to reduce bigger rocks to smaller fragments for use as construction material.

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Then, several screeners are used to sort and store the crushed stone into various heaps according to size. Larger stones are first eliminated during the screening process, followed by medium-sized stones, and finally stone dust.

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Because contractors need extremely precise kinds of crushed stone to finish various projects, screening is crucial. For instance, large stones should not be used in ready-mix concrete or stone dust should not be used in drainage systems.

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At Tynes Tees Crushing we believe that careful planning is required to satisfy customers because each contract may call for a variety of rocks, bricks, or other materials to be crushed and screened. Because selecting the incorrect equipment could prohibit the task from being finished or even started, we pay special attention to your demands and our clients’ requirements.Ìý

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To read more about our screening and crushing processes click here.Ìý

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The stone is finally prepared for shipment from the quarry after being divided into various piles according to size.Ìý

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Crushed Stone UsesÌý

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  • Used as a base or sub-base material in paving blocks and concrete for sidewalks, driveways, patios, homes, office buildings, and paved roadways, as well as during the production of cement.

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  • Asphalt and tarmac are created by mixing gravel with a binder and are commonly used as driveway extenders and fillers. Because of their angular designs, the stones used in the Macadam method of road construction must interlock in order for the road to be strong.

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  • In walls for the construction of railroads and shorelines, a binding substance is occasionally utilised. Crushed stone, also known as rip rap or shot rock, is used in a variety of shoreline structures to prevent erosion from water or ice.Ìý

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  • Crushed stones can be placed on the ground as tracking pads on building sites and in landscaping around trees and drains. Temporary roads called tracking pads are used to stop construction-related silt from going on paved public roads or landscaping.

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  • Crushed stones can be used for self-contained sewage treatment systems and septic systems.

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  • Stones can also be used to cleanse acid water and other harmful pollutants like sulphur oxide and coal dust found in mines.

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  • Crushed stones can also be used to make agricultural lime, which is then used to treat soil to lessen acidity.

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  • Did you know that crushed stones can also be used as mineral and grit for feeding chickens? All varieties of poultry need a mineral diet for optimum digestion.

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We hope you found this information useful, if you or your company are looking into contract crushing and screening, give us a call today on – 01325 808760 or explore our website.

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Jaw Crushers /jaw-crushers/ Mon, 22 Feb 2021 13:03:47 +0000 /?p=590 Jaw Crushers 91±¬ÁÏ provides Screening, Plant Hire & Hire Equipment to sites and businesses across the UK. We’re passionate about the work we do, and our years of experience make us experts in the industry. We always put the needs of our clients first and our mission is simple – High quality hire equipment and fantastic customer satisfaction every step of the way.  As well as screen hire, certified machine operators, and a mix of different aggregates, we also provide a range of plant hire such as jaw crushers.  But what is a Jaw Crusher? A jaw crusher.

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Jaw Crushers

91±¬ÁÏ provides Screening, Plant Hire & Hire Equipment to sites and businesses across the UK. We’re passionate about the work we do, and our years of experience make us experts in the industry.

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We always put the needs of our clients first and our mission is simple – High quality hire equipment and fantastic customer satisfaction every step of the way.Ìý

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As well as screen hire, certified machine operators, and a mix of different aggregates, we also provide a range of plant hire such as jaw crushers.Ìý

But what is a Jaw Crusher?

A jaw crusher is a compression kind of crusher made up of a fixed jaw and moving jaw components. This incredible piece of machinery uses compressive force, with the moveable jaw compressing large, cumbersome material to small, easy to manage quantities.Ìý

Jaw crushers are extremely heavy duty pieces of machinery made up of complex components, and you therefore need certified operators if you’re planning on hiring one for your site. We supply specialist operators for you, and all our staff are well-trained and experienced operating this kind of machinery.

Jaw crushers are commonly used for rock quarries to create a variety of different aggregates and materials. They are also regularly utilised for the recycling of enormous sized rock products and materials, crushing them to a manageable size that can be used for a range of purposes.

Supplying Jaw Crushers

We supply jaw crushing services and jaw crusher hire, as well as a wide range of different crushing and screening equipment. Customer satisfaction is our number one priority, and we work hard to make sure you get the product or service you require.Ìý

Our rates are competitive, and the performance of our machinery is outstanding. But it is our attention to detail before, during, and after each contract hire that puts us in the best position to help our customers.

With clients including Tarmac, Lumsden and Carroll, and Balfour Beatty, we are your perfect partners for all of your crushing and screening requirements.Ìý

Get in touch today by emailing us at info@tyneteescrushing.co.uk or calling 01325 808 760 for more information, guidance, or to hire equipment today.

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Cleveland Potash Case Study /cleveland-potash-case-study/ Thu, 07 Jan 2021 13:04:38 +0000 /?p=584 On Tuesday 11th of August we received a urgent call from Cleveland Potash in need of a crusher and screen hire due to breakdown of their own crusher. We quickly arranged to meet the next day to assess the site and what needed to be done. We quickly realised that our Terex Finlay 1170AS crusher would be ideal for their requirements. We then went through the costings as the client wanted to run the crusher at 24 hrs per day 7 days a week. Once all of that was done the client order the crusher and screen to be ran.

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On Tuesday 11th of August we received a urgent call from Cleveland Potash in need of a crusher and screen hire due to breakdown of their own crusher.

We quickly arranged to meet the next day to assess the site and what needed to be done. We quickly realised that our Terex Finlay 1170AS crusher would be ideal for their requirements. We then went through the costings as the client wanted to run the crusher at 24 hrs per day 7 days a week.

Once all of that was done the client order the crusher and screen to be ran for 60 days constantly. Two days later the Crusher was delivered to the site and setup before work could begin.

The crusher began work on the 15-08-2020 and worked almost none stop meet the clients demands and goals. The crusher eventually was stopped on the 23-11-2020. The clients demands were met and the crusher had worked extremely well to get through the backlog from their broken-down crusher.

Boulby Mine

As part of the same operation we supplied a RM70GO Crusher to Crush the oversized salt as they had a similar breakdown with their Crusher at Boulby Mine.

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How a Stone Crusher Works: Jaw, Cone and Impact Crushers /how-does-a-stone-crusher-work/ Thu, 26 Nov 2020 10:39:40 +0000 /?p=565 Here at 91±¬ÁÏ, our staff are experts in, and the clue is in the name here, all things screening and crushing.Ìý We’ve been a successful business within the industry for over 15 years from our County Durham, UK base, so it’s fair to say that we know our stuff when it comes to stone crushing.

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A pile of broken concrete on a demolition site is a cost until something turns it into a product. A stone crusher is the machine that does that. It breaks rock, concrete, brick or hardcore down to a size that can be laid, compacted or sold, usually on the site where the material already sits.

This guide explains what a crusher does, how each type works, what goes in, what comes out and how to get one on site. It’s written for the people who commission crushing: site managers, demolition and civils contractors, quarry operators, local authorities and builders with hardcore to process. 91±¬ÁÏ has crushed and screened across the North East from our Darlington base since 2005, and these are the questions we’re asked most.

What a stone crusher does

A stone crusher, or rock crusher, is a machine for size reduction. Material goes in at one size and comes out smaller, and the settings decide how much smaller. The feed can be quarried rock, demolition concrete, brick, mixed hardcore or road planings lifted from a resurfacing job. The product is aggregate: crushed stone, gravel, sand-sized fines and dust.

On a construction site the point is usually reuse. Concrete from a demolished slab becomes fill or sub-base for the new build, so the material never leaves the site and nothing is bought in to replace it. In a quarry the point is production, turning blasted rock into saleable grades.

Crushing is often done in stages. Primary crushing takes the largest lumps down to a size the next machine can handle, and secondary crushing takes that down to the size the job needs. On many recycling jobs one mobile crusher does both, because demolition rubble arrives smaller than quarry rock.

How a stone crusher works

Every crusher has the same parts in some form. A feed hopper receives material from an excavator or loading shovel and meters it into the crushing chamber, where the breaking happens, and a product conveyor carries the crushed material out to a stockpile. Mobile plant adds tracks so the machine can move around a site or on to a low loader.

The breaking happens in one of two ways. Compression crushers squeeze the material between two hard surfaces until it fractures. Jaw, cone and gyratory crushers work this way, and the gap between the surfaces sets the product size. Impact crushers throw the material at speed against hard surfaces so it shatters along its natural weaknesses, and rotor speed and the gap to the breaker plates set the product size.

On a compression crusher that gap is called the closed side setting, and it’s the figure an operator adjusts most. Open it up and you get bigger product faster; close it down and you get smaller product more slowly. Anything that comes out over size can be fed back for a second pass.

Crushing alone gives you a pile with everything in it, from lumps at the closed side setting down to dust. Most jobs need that pile sorted into grades, which is why a screener runs beside the crusher, covered under screening after crushing below.

Types of stone crusher

Four types cover almost everything used on UK sites and quarries: jaw, cone, gyratory and impact. Jaw and gyratory crushers do primary crushing. Cone crushers do secondary and tertiary crushing. Impact crushers can do either, depending on the material. The right one depends on how hard the feed is, how big it arrives, what product it has to become and how much of it there is.

Jaw crushers

A jaw crusher has two jaw plates set in a V shape. One is fixed to the frame and the other swings towards it and back, driven by an eccentric shaft. Material fed in at the wide top is squeezed between the plates each time the moving jaw closes. It fractures, drops lower into the narrowing gap on the return stroke and is squeezed again, until it’s small enough to pass through the closed side setting at the bottom.

Jaw crushers handle hard, abrasive feed and large lumps, which makes them the usual primary crusher in a quarry and the usual first machine on a demolition site. Reinforced concrete, brick and mixed hardcore all go through them. The product is coarse and angular, ready for a screener or a secondary crusher.

The jaw crusher is the type we hire out most often, and it’s the crusher named in our Cleveland Potash case study. We’ve written about jaw crushers in more detail in a separate post.

Cone and gyratory crushers

Cone and gyratory crushers share one mechanism. A cone-shaped mantle sits inside a fixed, bowl-shaped concave, and the mantle gyrates on an eccentric drive so the gap between the two narrows and widens around its circumference. Material fed in at the top is squeezed each time the gap closes on its side of the chamber, drops further down as the gap opens and gets squeezed again in a tighter space. It leaves at the bottom when it’s smaller than the closed side setting.

The difference is size and duty. A gyratory crusher is a large, fixed installation with a steep chamber, used for primary crushing in mines and big quarries where the feed is enormous and the tonnage is continuous. A cone crusher has a flatter chamber, is far more common, and does secondary and tertiary crushing of hard rock that’s already been through a jaw. Both suit harder, more abrasive stone than an impact crusher will tolerate.

The product from a cone crusher is consistent in size, which is why it’s used where the aggregate has to meet a tight specification. It’s less common on demolition sites, where the feed is softer and an impact crusher gives a better shape.

Impact crushers

An impact crusher breaks material by hitting it. A heavy rotor spins inside the chamber, carrying blow bars or hammers on its edge. Feed dropping into the rotor’s path is struck and thrown against fixed breaker plates on the chamber walls. The material shatters along its weakest planes, falls back into the rotor and is struck again until it’s small enough to leave. A horizontal shaft impactor throws material against the breaker plates. A vertical shaft impactor flings it outwards at high speed against an anvil ring or a bed of its own rock.

Impact crushers suit softer and medium-hard feed, so they do well on concrete, brick and road planings and badly on hard, abrasive rock that wears the blow bars quickly. Their strength on a recycling job is product shape. Material broken by impact comes out cubical rather than flaky, and cubical aggregate compacts better and meets shape requirements more easily. Where the target is a graded recycled aggregate rather than bulk fill, an impact crusher is often the right choice.

Screening after crushing

A screener is a machine with one or more vibrating decks of mesh, each with a set aperture. Crushed material is fed on to the top deck and shaken across it. Pieces smaller than the aperture fall through; pieces larger than it travel along the deck and off the end to their own stockpile. A two-deck screen gives three products at once: oversize, a middle grade and fines.

That’s how an all-in crushed product becomes single sizes and specified grades. The oversize from the top deck goes back into the crusher for another pass, and the sized material below it goes to stockpile ready to lay or load. Change the mesh and you change the products. A screener can also run on its own, sorting soil or excavated material into usable fractions.

Crushing without screening leaves an unsorted pile with everything from dust to large lumps in it, which is fine for some bulk fill and no use where a specification applies. That’s why crushing and screening are usually quoted together.

Crushing equipment for UK sites: what we crush and what comes out

91±¬ÁÏ crushes concrete, brick, hardcore, rock and road planings on customers’ sites. The feed ranges from slabs, foundations and mixed rubble off demolition and civils sites to blasted rock from quarries and planings from resurfacing work.

What comes out depends on the crusher and screen settings and on what the job needs. The main products are 6F5 capping, MOT Type 1 sub-base and single size aggregates, and recycled aggregates with source approval for adoptable works. All are available as recycled and quarried aggregates we supply for customers who’d rather buy than process their own.

For a worked example, the Cleveland Potash case study covers a job where we delivered a Terex Finlay 1170AS crusher to site in two days.

Crusher hire or contract crushing

The choice comes down to who runs the job. With crusher, screen and plant hire, the machine comes to your site with one of our fully trained and certificated operators, short or long term, and your team feeds it and uses the product. That suits a contractor with loading plant on site and a programme that runs the crusher for weeks rather than days.

With contract crushing and screening, our team does the whole job: we bring the crusher, the screener and the loading plant, process the material and leave you with graded stockpiles. That suits a one-off pile, a site with no spare plant, or a job where the product has to meet a specification and someone needs to own that.

Either way, depending on the scope of the job, we’ll look at the site before choosing the machine. Access, material, volume and the product you need decide what goes out.

Operators and site safety

Every crusher and screener we hire out comes with a fully trained and certificated operator. A crusher has a large moving mass, a hopper an excavator is loading into and a product belt running at speed, and an untrained person at its controls is a serious risk to themselves and to everyone on the site. Our operators set the machine up for the material and adjust it as the job goes on, so your team can concentrate on feeding it.

Stone crusher hire in the North East

Hiring from 91±¬ÁÏ starts with a conversation. Call or email with what you’ve got to crush, roughly how much of it and what you want it to become. Depending on the scope of the job, we’ll arrange a site visit to look at access, the material and the working space, which decide the size and type of machine. We then confirm the machine and the hire period, agree the paperwork and set a delivery date.

A tight urban site with a single gate needs a different machine from an open quarry floor, and a compact crusher that fits through the gate is sometimes the right answer for a small volume. Our concrete crusher hire, mini concrete crusher hire and rubble crusher hire pages cover the options by job type.

We’re based in Darlington and cover the North East. If your site is further afield, ask and we’ll tell you whether we can serve it.

Need aggregates, crushing or hire for your project?

91±¬ÁÏ & Screening has over 20 years’ experience serving the North East. Call us today for a fast, no-obligation quote.

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