Test research on effects of waste ceramic polishing powder on the permeability resistance of concrete

Waste ceramic polishing powder, as a type of waste common in the ceramic industry, is produced during grinding and polishing of ceramic tiles. In this paper, waste ceramic polishing powder, as a supplementary cementitious material, was used for the preparation of concrete. With the aid of tests, this paper discusses the effects of waste ceramic polishing powder on the permeability resistance of concrete. In this study, 12 groups of concrete were designed, including one control group; four groups of concrete mixed with waste ceramic polishing powder; four groups of concrete mixed with fly ash; three groups of concrete mixed with waste ceramic polishing powder and fly ash simultaneously, and the cement substitution rate in each group were different. Tests showed that the permeability resistance of the concrete mixed with waste ceramic polishing powder is superior to that of the control group, and in particular, the most desirable permeability resistance is achieved when the cement substitution rate is 30 %; with the difference in the cement substitution rate, the permeability resistance of the concrete mixed with waste ceramic polishing powder varies similarly to that of the concrete mixed with fly ash; the permeability resistance of the concrete mixed with waste ceramic polishing powder and fly ash simultaneously is superior to that of the concrete mixed with either.