Concrete For Foundations Guide

The foundation concrete slab is the structure that will "carry" the building throughout its lifetime.

 

Foundation slabs are divided into several types according to their design and use. It is always advisable to consult a designer when selecting a particular type of concrete for the foundation slab, taking into account how the structure or any part of it will be exposed to moisture and frost, the type and magnitude of loads that will be applied to it, the geological characteristics of the soil, etc.

 

The choice of concrete should also take into account the requirement to achieve surface flatness, as prefabricated houses and timber buildings require a more precise design than construction with conventional masonry materials.

 

Structural concrete

C20 (GEN3) Concrete
Ordinary reinforced concrete foundation slabs on gravel base and footings. Suitable for buildings without basements.

Find out more about the qualities of GEN3 Concrete.

C25 (ST2) Concrete
Normal reinforced concrete foundation slabs over uninsulated basements. Suitable for damp environments not subject to frost cycles (repeated freezing).

Find out more about the qualities of ST2 Concrete.

C30 (PAV1 / ST3) Concrete
Common reinforced concrete slabs exposed to moisture and frost cycles, e.g. parts of the structure used as an outdoor terrace or garage floor.

Find out more about the qualities of PAV1 Concrete & ST3 Concrete.

CEMEX Evolution® Self-Compacting Concrete

A high flowing, self-compacting concrete mix that allows for quick and easy surface levelling, in a similar way to cast floor screeds. The use of special self-compacting CEMEX Evolution® concrete achieves perfect flatness and precision of the slab, which facilitates the subsequent foundation of the building (e.g. for timber buildings and prefabricated houses) and the laying of floors.