Possible reusing of household ceramic wastes as mineral admixtures in ecological cement/concrete

Both the Ceramic wastes and the pollution of the cement industry can cause strong damage to the environment and the sustainable development. In the present study, the pozzolanic activity of household ceramic waste powder was investigated by SAI test and Frattini Test; the possibility of the partial substitution of Portland cement blended with ceramic waste powder was analyzed. The results indicate that the compressive strengths of mortar containing ceramic waste at both early age and after 28 days were generally increased as the ceramic waste ratio increased up to at least 15\% replacement, and the ground ceramic waste show clear pozzolanic activity.The authors acknowledge the National Natural Science Foundation of China (Grant: 51578109), and Fundação para a Ciência e a Tecnologia (SFRH/BPD/22680/ 2005).