At a first glance, it’s easy to confuse liquid screed and concrete. Afterall, they are both made from the same three basic ingredients, cement, aggregates (sand, gravel, crushed stone etc.) and water.
How screed is made
Even the chemistry behind the formation of the two materials is the same; the cement acts as a binder that adheres to other particles, sticking them together. So, when water is added to the dry cement, a paste is formed that sticks the aggregates together and, as the mixture hardens, forms the strong, hard-wearing substance we are all familiar with.
What separates liquid screed and concrete, however, is the size of the aggregates used, the quality of the cement and the mix consistency. These differences may seem subtle, but they combine to produce two very different products with different finishes and uses. As less aggregates are used to make liquid screed, it produces a much smoother mix than concrete.
Uses for liquid screed
Due to its smoother finish, liquid screed is commonly poured on top of concrete flooring as a levelling finishing layer. The screed is then usually covered in decorative flooring such as carpet, tiles, resin coatings, wood or linoleum. Liquid screed is often used in underfloor heating systems because its flowability means the pipework is completely enclosed and any bubbles or gaps that may affect the heat conductivity, are eliminated.
Liquid screed is fast overtaking traditional screeds as the number one choice for internal concrete flooring as it is quicker and easier to install because it is almost completely self-levelling and produces a superior, smooth and even floor surface. It also has faster drying times and can handle light foot traffic after just 24-48 hours. What’s more, liquid screed is more resistant to cracking, curling and shrinkage so will last for many years.
The team at Wrights Minimix have extensive knowledge and experience working with screed and have worked hard to develop our very own Wrightflow liquid screed. To learn more about how we can help fulfil your screed needs, please contact us on 0117 958 2090 today.