M6 Sand Cement Mortar

Can concrete and mortar be colour matched?

We do not guarantee a colour for our packed products. Concrete and mortar can be coloured by adding pigments. Mortar can also be tinted by specialist companies to match existing brickwork. You may find this website useful: https://www.diydoctor.org.uk/projects/Matchmortar.htm 

Which area does one bag of Sand Cement Mortar cover?

One MaxiPack of Sand Cement Mortar typically covers 22 standard bricks or 15 standard blocks. This are estimates and depend on the design of your brick.

What does ‘workability’ mean for mortar products?

Added workability is where admixtures or additional water are added to improve the flow of the mortar. Although addition of water can increase the flow, the water-to-cement ratio is thus reducing the strength of the end product. Trials should be carried out to assess the workability and suitability of admixtures.

Why has the render cracked?

Render can crack due to a number of reasons, these include environmental conditions such as temperature, humidity, wind, direction of sunlight.

Correct curing practices are important should be undertaken in order to maintain humidity. Poor curing will cause the loss of moisture within the mix. As a result, not all the cement will have hydrated causing weak bonds and therefore potential cracking.

The type of substrate can also affect cracking in render if correct measures are not used to prevent loss of moisture from the render. An assessment of the type of brick or block should therefore be undertaken first.

Pronounced cracking may be due to drying shrinkage. Small areas can be renovated by the use of fillers.

In case of pronounced cracking in render and substrate seek the advice of a structural engineer or designer. Further advice can be sought from the Mineral Products Association: https://www.mortar.org.uk/documents/miadata14.pdf