Activation Process for Cementitinous Materials

Abstract

Pozzolanic reaction is a reaction of pozzolanic material, which could be used as an additional material to Portland cement. Pozzolan is a siliceous and aluminous material (available in fly ash, rice husk ash and etc.), which reacts with calcium hydroxide and water to form calcium silicate hydrate (CSH) compounds like a cementitinous material but it is slowly reacted. The activation processes such as mechanical by grinding, thermal and chemical process can resolve this problem to increase the strength development in early age. Several research works have been conducted on the use of chemical process to improve the performance of cementitinous material because it is convenient to prepare specimens. Furthermore, it increases pH in a mixture and also the rate of a reaction could be increased. Therefore, the uses of activation processes for cementitinous materials are applicable for construction works or hazardous waste management.