The age-old invaluable building properties of cement will continue to benefit for many years and even decades ahead, however, their limitations need to be considered and planned for.
Cement is a key material in the building industry and has been used as the base of almost every structure that has been built. From the glue that holds bricks together to the solid foundation on which skyscrapers are assembled, builders use this material from start to finish. This is due to the extreme strength of cement, coupled with its versatility, and it can be applied to any structure and moulded into any shape.
However, regardless of how strong this material is, the fact remains that cement is not flexible. As a result of the natural movement of structures through expansion and contraction, and shifting earth beneath the foundation, cement has a tendency to crack. Cracks can migrate through any given final finish depending on their severity.
Cemcrete’s decorative finishes are cement-based and extremely thin (often only a few millimetres) which cannot hold the foundation together. Cemcrete, acknowledging the nature of structural movement, has developed certain products, used as additives, to assist with the flexibility of the screed beneath the coating.
One example is that of Cemcrete’s FlexBond. This is a non-toxic, latex-based liquid admixture, which can be used in portland plasters, screeds or concrete. It replaces some of the water in a cement mix, and provides for a great bonding liquid, while improving the overall quality of cement with its flexural, waterproof, tensile and abrasive strengths.
To assist with adhesion, Cemcrete also manufactures CemBond. This general purpose adhesive contains a thermoplastic resin and can be used throughout the construction process. In conjunction with Cemcrete’s other product range, CemBond can be applied as an admixture to assist with adhesion onto the respective surface, especially when it comes to difficult surfaces. CemBond is primarily used on walling/vertical surfaces along with Cemcrete’s wall finishes, while FlexBond is used in conjunction with flooring products and finishes.