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Liquid Screed Avonmouth


At Wright Minimix, we provide reliable concrete screed perfect for any floor, providing a smooth surface and the perfect material for you to use with underfloor heating. We have a reputation for sourcing and delivering the perfect bespoke concrete mix for any project. Contact our team today to discuss your requirements on 0117 958 2090.

Liquid Screed specialists in Avonmouth


We are a leading supplier of liquid screed in Avonmouth and the South West of England and pride ourselves on creating, supplying and delivering the highest quality liquid screed. Whether you are looking for a small quantity of liquid screed to undertake a spot of DIY or you require a reliable supplier of high quality liquid screed for a commercial project, we can help.

Our Avonmouth liquid screed specialists are on hand to provide you with exactly what you need and can provide you with a tailormade batch of liquid screed based on your individual requirements. Our highly experienced and fully qualified team have a wealth of knowledge and pride ourselves on offering a fully comprehensive liquid screed service across both the commercial and residential sector in Avonmouth.

As the one-stop-shop for liquid screed and concreting services in Avonmouth, Wright Minimix has an unrivalled reputation within the concreting industry. With a fleet of over 53 vehicles, including the biggest concrete pump in the UK, we are ideally equipped to provide quality assured ready mix concrete and screed as well as the latest concrete pumps.

Wrightflow Screed Avonmouth


Are you based in Avonmouth and need screed? We can provide you with our high-quality Wrightflow liquid screed on a supply and lay basis, using our specialist liquid screen contractors in Avonmouth and the surrounding area. We can also provide dry screed too and can deliver this to both commercial and residential addresses in the Avonmouth area.

What is the Wrightflow Liquid Screed made of?


Our Wrightflow Liquid Screed is composed of blended cement, sand, limestone dust, water, anti-crack fibres, anti-shrink agent and a superplasticiser.

What can Liquid Screed be used for?


Our liquid screed can be used for a variety of construction purposes, to included renovation, refurbishment as well as new build construction work. It can be used in bonded, unbonded or floating construction.

Liquid Screed – Underfloor heating


Our liquid screed is ideal for underfloor heating, due to its ability to flow around the elements of the heating system in the underfloor heating.

Thanks to its excellent connectivity, our Wrightflow liquid screed guarantees a quick and even heat supply and helps contribute towards the energy saving of the building.

Benefits of a liquid screed floor


Whilst there are many benefits that come with choosing concrete floor screed, the smooth, level surface finish of the flooring is the biggest advantage for many commercial businesses and homeowners, as it provides a suitable flat surface for laying tiles, carpets or floorboards should you wish to.

Another big reason for opting for screed is its thermal conductivity. The fluidity of liquid screed means that it wraps around your underfloor heating pipes entirely, making it the perfect conductor for heat across the floor, when compared to regular concrete mixes.

Our Wrightflow Liquid Screed is ideal for use with underfloor heating, but can also be used for other purposes too. Other benefits of liquid screed can include:

  • Use less resources – installation of liquid screed is typically less resource intensive than traditional cement.
  • Reduced drying time – The total drying time of liquid screed is reduced which in turn increases productivity.
  • Minimal disturbance – Once laid, a liquid screed floor can be walked on after about 24 hours after application.
  • Less mess – With liquid screed, you are less likely to incur any mess as it is generally a more straight-forward process.

Types of screed flooring


There are three main types of screed flooring - unbonded, bonded and floating:

Unbonded screed flooring – is applied on top of a damp proof membrane which is laid on the concrete subfloor.
Bonded screed flooring – is applied directly to the concrete subfloor.
Floating screed flooring – is applied over a layer of insulation or an underfloor heating system.

If you are unsure which screed flooring option is right for you, our team of concreting experts in Avonmouth are more than happy to discuss your requirements and give you their professional opinion, based on years of experience in the screed flooring industry. Get in touch today on 0117 958 2090.

Choose Wright Minimix's Avonmouth Screed


With over 34 years’ experience, we are ideally equipped to cater for both trade and residential customers in the Avonmouth area and beyond. From large-scale projects, through to DIY residential projects, we have a liquid screed solution for you.

We supply Avonmouth, but also have plants in Bristol, Cheddar and Newport, making us ideally situated to cover the entire South West of England and South Wales.

Our screed specialists have years of expertise when it comes to installing concrete floors. Our team are on hand to answer any questions that you may have about concrete floor screed and can discuss your requirements with you to give you a better idea of how we can be of assistance in your project.

If you'd like to know more about Wright Minimix's concrete floor screed, or any of other services, get in touch today on 0117 958 2090.

If you have a liquid screeding project and are looking for the leading concrete experts in Avonmouth, why not give us a call on 0117 958 2090 today or contact us via the website?

Screed FAQs


We want our screed flooring service to be as transparent as possible. Here are the answers to a few of the most frequently asked questions we receive. If you cannot find the answer you're looking for, don't hesitate to contact us on 0117 958 2090 and a member of our team will be happy to assist you.

The depth of your screed flooring will depend on whether or not it is unbonded, bonded or floating, and located in a domestic or industrial setting. Our team are happy to advise further when they learn further details of your project.

We have a large fleet of vehicles at our disposal to ensure that you receive your concrete screed on time and to your specifications. We can either tip your screed directly into a wheelbarrow for you to apply yourself or provide a concrete pump to apply the screed directly where you need it.

You will need to carry out a certain level of preparation before we can pour your screed flooring. Check out our screeding preparation guide for further guidance, or contact our team.

How to Test for Concrete Slump
16th November 2022

A concrete slump test is a method of measuring the consistency of fresh concrete. It’s a simple and easy way to check the workability of multiple batches before they set.

Wright Minimix are industry-leading concrete specialists, supplying ready-mix concrete and liquid screed across the South West. In this post, we explain what a slump test is, why it’s necessary, and how to carry one out.

What is a concrete slump test?

A concrete slump test is a routine procedure for seeing how easily a batch of concrete will flow. It’s low cost, easy to carry out, and produces immediate results.

Why perform a concrete slump test?

Before laying concrete, it’s important to check all batches have the same consistency. This ensures a constant quality and strength throughout. A slump test reveals the water-cement ratio, letting you know whether more or less cement needs to be added to the mix.

Too much water will weaken a mix. If you require a higher workability, you must raise the amount of cement within the mix.

What is the method for carrying out a concrete slump test?

To carry out a concrete slump test, you’ll need a slump cone, a measuring stick, a steel rod, and - of course - the concrete itself. Follow the steps below to find out the slump result of your concrete:

  1. Place the slump cone on a flat surface and stand on the footholds either side.
  2. Pour a layer of concrete into the cone, and use the steel rod in a circular fashion to smooth and compact it around 25 times. Make sure to penetrate the previous layer by about an inch. Repeat this with another layer of concrete on top.
  3. Pour in one final layer and rod it 25 times. The rod should penetrate the second layer, but not go through it fully. If the concrete is compacted beneath the top of the mould, stop rodding and add more concrete, then continue.
  4. After pouring the layers, clear away any overflow from the top and base of the cone. Double check the concrete reaches the top level of the cone.
  5. Slowly lift the cone up, shaking it gently until it is free of the concrete. Place the cone upside down next to the concrete, which will soon start to slump.
  6. Lay the steel rod across the top of the upturned cone so it hangs over the concrete.
  7. Measure the distance from the rod to the top of the slump. The level of slump is measured to the nearest 1/4 of an inch. The recorded results are the slump of the concrete.

Talk to the South’s concrete specialists

Wright Minimix have been delivering premium concrete solutions for over two decades. Whether you’re in need of ready-mix concrete, concrete blocks, or a heavy-duty concrete pump, we’ll be there to provide it on time and on budget.

Get a quote online or by calling our friendly team on 0117 958 2090.

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The Complete Guide to Concrete Footings
07th September 2022

Whether a house, deck, or bridge, every structure needs a strong footing to stand on. 

Concrete footing lies at the very lowest point of a foundation. Responsible for supporting the weight of an entire building, the footing must be strong, durable, and sturdy enough to last years under heavy strain. 

Poorly built concrete footing risks cracking or sinking into the ground. In extreme cases, it can even cause the building to collapse altogether! 

For these reasons, laying out concrete footing correctly is a crucial part of the construction process. 

Wright Minimix are specialists in all things concrete. We have extensive knowledge about using concrete for a variety of applications, and have years of experience working on projects across the south west. 

In our guide to concrete footings, we cover everything you need to know about correctly laying a footing, from determining the right concrete mix to proper site preparation. 


What are Concrete Footings? 


Footings are the solid concrete at the very bottom of a structure. They distribute the weight of a building across an area, preventing it from sinking into the ground. 

Footings are usually the first thing you build when starting a new construction project. Because they need to support a significant amount of weight, footings must be made of very strong concrete. It should be at least 3500 psi (pounds per square inch). 

There are several different types of concrete footings: footing under a single column, footing under multiple columns, and wall footings. 

Concrete has high compressive strength, meaning it can withstand heavy loads without fracturing, but low tensile strength. This means too much weight can cause it to elongate. For this reason, the concrete mix is usually reinforced with horizontal and vertical rebars. 


What is the Best Concrete Mix for Footings? 


The mix you use is one of the biggest factors in determining how strong your concrete footing will be. 

Much of this revolves around the aggregate (the stone and sand used in the mix), as the aggregate is what gives concrete its strength. It makes up the bulk of the concrete and adds to its overall compressive strength. More stone means a stronger mix. 

However, using overly coarse or oversized aggregates can cause “honeycombing.” Honeycombing refers to the gaps in the concrete caused by large pieces of aggregate sitting against the rebar, creating an effect that visually resembles a honeycomb. Honeycombing can be fixed by adding finer aggregates and more concrete to the mix, and by mixing the concrete more thoroughly. 

For concrete footings, the best mix to use is: 

  • 1 part cement 
  • 2 parts sand 
  • 4 parts stone (aggregate by volume) 


What aggregate size should you use for concrete footings?

The aggregate should be around 1/2 – 1 inch in size. After 28 days of curing, this mix will yield a 3500 psi. 


Ready Mix Concrete for Concrete Footings

Although you can mix the concrete yourself, the most time and cost-effective way is to buy a ready mix. With ready-mix concrete, you can skip the laborious process of measuring and mixing and get straight to pouring. 

At Wright Minimix, we create ready-mix concrete to your exact specifications. Because each mix is custom made, there is little or no wastage. There is also no need to have a labourer mix the cement on site, nor do you need to make space for storage. 


How Do You Lay Concrete Footings? 


The exact method will depend on the structure’s size, shape, and location. It’s also important to note that laying a footing is a complex process that requires significant expertise. Make sure you’re working with experienced professionals who can carry out the process correctly. 

With that in mind, here is an overview of the general process: 


1. Prepare the Site 

Before you do anything, it’s important to analyse the condition of the soil on site. The size and dimension of your footing depends on the soil’s load bearing capacity. Soft or troublesome soil requires special care, as there is a high risk of the concrete sinking into it. 

You should also clear out grass, roots, and debris from the idea, and identify the layout and corners of your foundation so it can be structured correctly. 


2. Dig the Trench 

Once you’ve determined how wide and deep the trench should be, you can begin digging. 

The hole for your footings needs to be bigger than the foundation, so you and your workers have room to lay down the footings. There should be at least 2 feet on all sides. 

The perimeter hole should be at least 2 feet wide by 2 to 3 feet deep. Make sure to clear out any remaining dirt and plantation afterwards. 


3. Set the Rebar 

Rebar support beams prevent the concrete from cracking or crumbling. You should set your rebar in place, then attach the grade pins on top. Each grade pin should be about 2 feet apart from one another, and a foot away from the corners. 

Make sure that the rebar is an equal distance from the sides as it is from the base of your opening. 


4. Mix and Pour the Concrete 

If you’re using a ready mix, you can skip straight the pouring. Depending on the size and location of your site, a concrete pump may be your best option for this. 

Wright Minimix has a fleet of concrete pumps available, big and small. This includes our compact Minipump, ideal for hard-to-access sites, as well as the largest concrete pump in the UK

If you’re preparing the concrete yourself, make sure the ratio of cement, aggregate, and water is correctly measured out before mixing. 

Once the concrete is prepared, pour it into the trench. This must be done within thirty minutes of mixing. 

The final step is to protect your footing from moisture and damage with an industrial-quality, acrylic-based sealer. 


Trust Wright Minimix for Your Concreting Needs

Need a reputable concrete supplier for your project? No matter what kind of structure you’re working on, we have the exact type of ready-mix concrete you need. Get in touch to arrange concrete for your footing today!

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Bonded vs Unbonded Screed
01st September 2022

When it comes to any building, flooring is an essential part of its structure. This means it’s vital to ensure that your floors are sufficiently strong, durable, smooth and level. This can be achieved through screed flooring, but with all the different types available on the market today, you may be unsure as to what one best suits your building’s needs.

There are two main floor screed designs – bonded screed and unbonded screed. To give clarity, specialist concrete contractors Wright Minimix have developed this guide to explain what exactly screed is, the differences between bonded and unbonded screed along with the benefits and uses of each.

Read on to find out more, or contact us today to discuss a screed flooring quote.

What exactly is screed?

Screed is essentially a thin layer that is laid over concrete to create a smooth, sturdy and hardwearing subfloor. Created by mixing cement with graded aggregates and water, screed can be between 25mm and 100mm in thickness, and can be left as a standalone finish or covered with additional decoration (such as carpet or floorboards).

What is bonded screed? 

Bonded screed is laid onto a mechanically prepared substrate (or underlying layer) using a bonding agent or slurry.  The aim is to maximise the potential bond to the concrete substrate. The optimum thickness of bonded screed is between 25-40mm.

What is unbonded screed?

Unbonded screed, on the other hand is intentionally separated from the substrate by the use of a damp-proof membrane or polyethylene sheet. With unbonded screed, it’s crucial that the drying process isn’t rushed as if it dries too fast, the edges of the screed can warp. It’s recommended that unbonded screed thickness exceeds 50mm.

Will screed stick to concrete?

Technically no as screed is not directly applied to concrete. Screed is applied over a mechanically prepared substrate (if using bonded screed) or a membrane (if using unbonded screed) which is placed over the top of the concrete.

What is the difference between bonded and unbonded screed?

We explain the differences between bonded and unbonded screed and when you would use them below. 

When would you use bonded screed?

Typically, bonded screed is ideal for areas that will regularly endure heavy loads such as driveways and car parks.

What are the benefits of using bonded screed?

The advantages of using bonded screed include how:

Bonded screed is simpler to apply as it’s thinner than any other form of screed

As bonded screeds can be much thinner than any other form of screed, this makes the application much simpler as all that’s required is a slurry of cement and water or a bonding agent.

Reduces shrinkage

By applying bonded screed correctly, shrinkage will be reduced in the future due to additives contained in the bonding agent.

When would you use unbonded screed?

As it uses a damp proof membrane to protect against moisture, unbonded screed is best used in buildings where damp presents a serious problem (e.g. for underfloor heating).

What are the benefits of using unbonded screed?

Reasons for choosing unbonded screed include how:

Unbonded screed prevents settlement

Settlement is the term given to when a floor sinks due to large amounts of pressure. Settlement is a common problem with concrete floors, but as the damp-proof membrane separates the screed from the concrete, the risk of settlement is mitigated.

Unbonded screed reduces shrinkage cracking

Shrinkage cracking accounts for about 80% of screed cracking. By separating the screed from the concrete substrate, the risk of shrinkage is greatly reduced during the drying process.

Unbonded screed guards against damp

As already touched upon, thanks to the damp-proof membrane separating the screed from the concrete, a barrier is created to prevent damp rising from the substrate.

Which is better – bonded or unbonded screed?

We don’t believe one screed design is better than the other – it all depends on your project and how you intend to apply the screed; for projects that need to withstand heavy loads on a regular basis, we recommend opting for bonded screeds.

For projects that take place in areas that are prone to moisture and damp, we suggest choosing unbonded screed.

Whether you require bonded or unbonded screed, trust Wright Minimix to provide the right floor solution for your commercial or domestic needs.

Wright Minimix is a specialist concrete and floor screeding company

Wright Minimix specialise in supplying high quality liquid screed flooring, concrete blocks and ready mixed concrete to customers across the South West of England and South Wales. Our team of vastly experienced and skilled concrete contractors pride themselves on giving expert advice across our commercial and residential clients.

To find out how we can provide screed flooring for your property, or to learn more about our wide array of concrete services, don’t hesitate to call our friendly team today on 01179 582090 or alternatively feel free to leave a message on our contact webpage.

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The Complete Guide to Concrete Pumping
25th August 2022

Before you can start pouring concrete into your lay site, you need a way to get it there.

In this guide to concrete pumping, you’ll learn exactly how the pumping process works, and why it could be the best concrete transport solution for your business.

If your mix trucks are too large to get close to your lay site, delivering concrete can prove a problem. You could transport the concrete manually, but lugging around heavy cement-filled wheelbarrows is far from ideal – it’s slow and back-breaking work, with a high risk of spillage or injury.

That’s where concrete pumps come in. Concrete pumps streamline the process of transporting concrete, delivering it faster, easier, and more cleanly. They’re able to transport hundreds of yards of mix with ease, cutting down on wastage and speeding up the process massively.

At Wright Minimix, we have a wide range of concrete pumps for hire. These include the largest concrete pump in the UK, standing at 62 metres tall, and the boomless minipump, for delivery to especially difficult-to-access lay sites. If you’re looking for the right pump for your project, get in touch!

How Concrete Pumps Work

Concrete pumps use a simple, reliable mechanism for transporting concrete.

Two cylinders are placed next to one another. Inside each cylinder is a piston: one piston draws the concrete into the cylinder, while the other pushes the concrete out. A valve can be turned to determine which cylinder is open to the concrete hopper and which is open to the discharge pipes.

When concrete is pumped, a layer of water, sand, and cement keeps it lubricated as it moves through the pump line walls. The mix needs to have enough water to move easily through without causing a blockage.

If you’re looking for the right concrete mix for your pumping project, we can help. We’ll create a high-quality custom mix for your project that moves smoothly through pipes while still serving its ultimate purpose.

Types of Concrete Pump

There are two main types of concrete pump: boom pumps and boomless pumps.

Boom pumps use a long robotic arm to deliver ready-mix concrete and liquid screed quickly and accurately. Because of the sheer volume of concrete they’re capable of pumping, they’re often used on large construction sites.

As the name suggests, boomless pumps – also known as ground line pumps – lack this robotic arm. They instead rely on laying pipes from the vehicle to the lay site. Boomless pumps are useful for smaller sites that are difficult for mixing trucks to access.

Looking for more information? Check out our blog post on choosing between boom and line pumps.

If you’re unsure which pump will work best for your project, don’t worry. Whether you need a large concrete pump or a small concrete pump, we can show you exactly which pump will work best for your project.

How the Concrete Pumping Process Works

The specifics of how pumping works depends on the individual situation. However, there is a typical process most projects follow:

  1. The pump’s operator sets up the pump and prepares the grout
  2. The concrete mixer truck backs into and connects to the pump
  3. The operator grouts the line and begins pumping
  4. If using a boom pump, the concrete will be laid using the arm. If using a boomless pump, the pipeline must be rearranged during the pouring process
  5. Once the concrete has been fully dispensed, the mixer chutes will be cleaned on site
  6. Repeat for the other mixing trucks (if necessary)
  7. Once completed, the concrete left in the pump and pipeline will be cleaned. How long this takes depends on the length of the pipeline
  8. The boom (if present) is reverted back into its travel position and all equipment is packed away. The pump is then driven back to the depot

How to Prepare Your Site for Concrete Pumps

Pumps are excellent at accessing hard-to-reach areas, but they’re more effective when they’re placed as close to the site as possible. It’s important to make sure your site has plenty of room for them and the transport vehicles they arrive in.

If your site is too small or remote to accommodate them, you should plan ahead accordingly. Make sure you’re using a pump that is long enough to reach the site. If you’re using a concrete pumping service, warn them ahead of time so they can account for the obstacle.

Using Concrete Pumps Safely

Pumps are huge pieces of equipment that, if misused, can cause serious injury or death. It’s paramount you take the correct safety precautions when setting up and operating them.

Using Concrete Pump Equipment Safely:

  1. Always check for worn couplings or gaskets, as these may let air into the line or allow grout to escape. Wear on pipelines can be checked with a gauge designed to measure the thickness of steel pipe. Make sure pipe ends are compatible with one another, as joints can be dangerous if the ends and couplings don’t match.
  2. The pipeline must be properly tied down. Space support brackets every 10 or so feet to reduce stress on the coupling joints, and to transfer the torque to a column or beam.
  3. Make sure you’re using the right hose for your application. You should use a specially reinforced hose if you’re using a boom pump. Only place hoses designated as a discharge type at point of placement for discharge.
  4. Whenever possible, use water to clean the pipes once pumping has completed. Water is safer and more effective at cleaning than compressed air.

Concrete Pump Vehicle Placement:

  1. Before you extend the boom, make sure no obstructions are in the way. For example, power lines, trees, or scaffolding.
  2. Power lines in particular pose a big risk. The metal on pumping equipment conducts electricity easily, as does the water present in the concrete mix. Coming into contact with electrified equipment will likely be fatal. If power lines cannot be entirely avoided, you should have a spotter to keep an eye on the boom at all times.
  3. Park trucks a good distance away from slopes or sharp drop offs.
  4. Make sure the truck is properly stabilised for the type of surface it’s mounted on.

If you still have questions about concrete pumps, reach out to us! We’ve worked on hundreds of pumping projects, and can give you expert advice about choosing and operating the right pump for your project.

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