Leading manufacturer and supplier of ready mix concrete, liquid screed and concrete pumps for the South West
  • Large area application Self-compacting screed
  • Self-compacting screed
  • Rapid cure, highly fluid screed
  • Request a quote

How to prepare for laying screed from Wright Minimix

Preparing liquid screed

 

As established concrete experts, we are ideally positioned to provide guidance on the best way to prepare for laying screed.

Why not take a look at our instructions below, but if you require further information or if you have any questions, please don’t hesitate to contact us.

Wright Minimix - Liquid Screed

Minimum cover above pipes is 30mm therefore minimum screed thickness is normally 50mm when using a 16mm U/F pipe.

A membrane of 1000 gauge or thicker should be laid immediately under the pipe work (above the insulation board) as a slip layer, and to prevent leakage of the screed before setting.

Ensure pipe work is fully clipped especially around bends, and that the system is full of water prior to the floor being laid, this avoids the pipe work floating to the surface of the screed.

Any shuttering across doorways or steps should be fully sealed with expanding foam or mastic to prevent leakage after laying but before setting.

Pipe ducts or holes through walls also need to be sealed before placement of the screed.

If you are using an ‘eggbox’ type pipe system, the membrane should be laid under the eggbox, and you should avoid using small off-cuts of eggbox to avoid any possibility of floating.

Minimum cover is 40mm.

A membrane of 1000 gauge or thicker should be laid on top of the slab to act as a slip layer, and to prevent leakage of the screed during placement.

Any shuttering across doorways or steps should be fully sealed with expanding foam or mastic to prevent leakage before setting.

Pipe ducts or holes through walls also need to be sealed before placement of the screed.

Minimum cover is 40mm.

A membrane of 1000 gauge or thicker should be laid on top of the slab to act as a slip layer, and to prevent leakage of the screed during placement.

Any shuttering across doorways or steps should be fully sealed with expanding foam or mastic to prevent leakage before setting.

Pipe ducts or holes through walls also need to be sealed before placement of the screed.

Often sub-floors slope or are uneven which when using a randomly chosen datum point may cause unexpected differences in the overall floor level and in the quantity of screed required. It is the customer’s responsibility to agree datums in each room / area or across the whole floor area if the rooms are seamlessly linked. 

This / these datum(s) will need to consider critical features such as door openings, minimum thicknesses / cover or required differentials in floor height between rooms for matching in tiling with carpeting for example. These datums must be agreed prior to commencement of the laying and marked on the wall above the level of the finished screed so that they are present after the event for comparison should a disagreement be raised about finished floor levels. Any such disagreement must be brought to our attention within 48 hours.

Should these datums be removed or altered prior to any investigations then we will not be held accountable for any level issues.

Should extra product be required over that originally ordered due to datum issues and this requires an extra delivery to site and extra time for laying then we will charge these extra costs to the client so it is essential that a proper estimate is made by the client to avoid this circumstance.

Do you have any screed requirements? 
We are the right people for you – let’s work together! Contact us on 0117 958 2090 today to get a quote or to find out more.

News
Unusual ideas for DIY concrete
11th December 2017

Our team of concrete specialists are experienced in delivering DIY concrete and screed for projects both big and small, straight to your door. You may think that concrete isn’t the most exciting or versatile material when considering a DIY project, but we’re here to change those perceptions and get you inspired with some more unusual ideas to consider for your next DIY project.

Shelving

Why not use some of our ready mix concrete to create some modern shelving? Concrete might not be the first thing you consider when think of shelving materials, but it can be an excellent method that looks great too, both in indoor and outdoor settings. Concrete is an incredibly durable and cost-effective material, which can complement your existing décor and its water-resistant nature makes it great for bathrooms and kitchens.

Decorations

As long as you have a mould, the possibilities when it comes to what you can do with ready mix concrete are endless, which is what makes it such an excellent choice for decorations both in the garden and indoors. You can make modern sculptural pieces such as garden globes, bird baths, plant pots, candle holders, bookends and much more to visually enhance your home.

Benches

There are lots of different ways that you can incorporate ready mix concrete into a stylish garden or annex bench. Concrete makes an excellent sturdy base for a bench and combining concrete blocks with wooden planks and cushions can result in a stylish and comfortable result. If you’re going for something more stripped back, just using ready mix concrete for your garden bench can lend your garden or annex an modern vibe. 


We hope that some of these ideas have inspired you to get inventive with concrete. We can supply you with ready mix concrete straight to your home, regardless of the amount required. For more information on our DIY concrete and screed, contact us on 0117 9582090.
 

Read more
Popular uses for ready mix concrete
04th December 2017

Ready mix concrete is versatile in its uses because it can be enhanced to improve certain attributes, such as added strength or workability. This means that it is a favourite option to use in a range of both DIY and commercial projects, some of which we have listed below.

Roads

Concrete has been used in road surfaces since 1893 and for good reason. Though asphalt is also used for roads, ready mix concrete has advantages in the fact that it is usually more durable and hardy than asphalt and typically require less maintenance due to being less prone to cracking. It is not uncommon for concrete roads to not require maintenance for decades after installation.

Foundations

Our ready mix concrete is an environmentally friendly and economic option for building construction, because it curtails material consumption and storage whilst providing no waste. Any surplus materials can be easily recycled, which makes ready mix concrete an excellent choice in the construction of conservatories, homes and basement conversions.

Driveways

Concrete is a popular choice for driveways due to a lot of the same reasons as roads, namely that it is durable, a good weight-bearer and requires little to no maintenance once installed. As such, though the price is usually higher to install ready mix concrete, these costs are usually negated by the lack of money needed to maintain it. Though ready mix concrete is naturally grey colour in colour, it can also be coloured different hues and shades, so it can be a decorative as well as sturdy option for driveways.


For more information about our ready mix concrete, concrete pumping services and liquid screed, contact our team today on 0117 958 2090.
 

Read more
What are the Benefits of Ready Mix Concrete?
03rd November 2017

Ready mix concrete is pre-mixed to suit client requirements and can offer many benefits to your construction project. We discuss the advantages and how the use of ready mix concrete can save you time and money.

Quality Controlled

As ready mix concrete is made to specification and adheres to strict regulations within a mixing plant, you can remain assured that the concrete you are supplied with is of approved and consistent quality. Computerised systems ensure that the correct mixing ratios are met far more accurately than you can mixing by hand.

Time Efficient

Hand mixing concrete takes a lot of time and effort. This is time you could be spent doing other, more productive tasks. The delivery of ready mix concrete to your site cuts down labour hours, especially for larger commercial projects, and is often more economic than paying a workforce to mix concrete by hand. By using concrete pumps and a range of delivery vehicles, ready mix concrete can be delivered to lay sites efficiently and without the unnecessary time and effort.

More Environmentally Friendly

Due to more efficient mixing methods, cement and waste production are kept to a minimum. This is beneficial for the environment, as the production of ready mix concrete at a plant uses less resources and energy. It also reduces dust pollution, as bulk cement is used rather than bagged.

Versatile

Finally, just because you aren’t mixing it yourself, doesn’t mean you lose the flexibility of choosing your concrete mix. Each order of ready mix concrete is different and specifically tailored to suit each client’s individual requirements. The use of ready mix concrete delivered to your site simply assures that your concrete mix is of only the best professional quality. 


For more information about our ready mix concrete, concrete pumping services and concrete mixes, contact our team today on 0117 958 2090.

Read more
Concrete mixes and their uses
09th November 2017

It is important to get the right concrete mix for your construction project. Though all concrete mixes are composed of largely the same ingredients: water, aggregates, and cement, different concrete mixes contain different additives to promote certain properties and fit certain uses. Some common admixtures are:

  • Set retarding – slows down the rate that concrete sets, useful for laying in high temperatures.
  • Plasticisers – improves workability and flows freely.
  • Accelerating – reduces concrete setting time.
  • Corrosion inhibiting – slows rate of corrosion in reinforcing steel, reducing maintenance costs.
  • Shrinkage reducing – prevents shrinkage and cracking during setting.
  • Fibre reinforced – improves strength.

We manufacture and supply bespoke ready mix concrete to meet all requirements, so have detailed a few common examples of concrete mixes to consider and their uses below.

Regular Concrete

What driveways are often made of, this is the most common concrete mix available and is largely available from stores for personal use. It is mostly used in domestic projects, as it is not as sturdy as high-strength concrete. It usually withstands pressure between 10 MPa to 40 MPa, making it unsuitable for uses that need to handle heavy weight.

High Strength Concrete

Able to withstand pressure greater than 40 MPa, high strength concrete is suitable for use in high-rise buildings, bridges and foundations for its ability to withstand heavy loads. However, high strength concrete mixes can have workability problems, so admixtures, such as plasticisers, often need to be added to get around this.

Light Weight Concrete

As the name suggests, light weight concrete is much lighter than regular concrete, with a density of approximately 105 lbs per cubic foot, compared to regular concrete’s 150 lbs. This is achieved through the use of light weight, course and fine aggregates. It is used to reduce the overall weight of a structure whilst retaining the compressive strength of regular concrete. It also has improved fire resistant properties. 


For more information about our ready mix concrete, concrete pumping services and concrete mixes, contact our team today on 0117 958 2090.

Read more