Properties of sandcrete mixtures modified with metakaolin

Eco-friendly, low-cost, sustainable construction materials for utilisation in civil engineering projects have attracted much attention recently. This work deals with the synthesis of sandcrete mixes with metakaolin as a mineral admixture, which can be used either as grout in soil stabilisation (p.e. in corrosive environments like landfills, coastal regions etc.) or as a material for the construction of structural elements. Sandcrete mix design optimisation and mechanical behaviour of the produced samples have been experimentally investigated. It has been found that the beneficial properties of metakaolin can be used towards the production of sandcrete mixes with improved mechanical properties.