Abstract: In order to improve the utilization rate of waste ceramics in concrete， ceramic concrete was prepared by using “C” substitution method (traditional equal mass substitution method)，“P” substitution method (substitute natural river sands with different particle sizes)， “D” substitution method (substitute natural river sands with particle sizes of 1.18， 2.36 and 4.75mm) and “X” substitution method (substitute natural river sands with particle sizes of 0.15， 0.3 and 0.6mm.) to replace natural fine aggregate according to different proportion (10%， 20%， 30%， 40%， 50%). 21 groups of concrete were designed， including 1 group of reference concrete， 5 groups of concrete prepared of “C”， “P”， “D” and “X” substitution method respectively. The water-binder ratio is 0.49， and the compressive strength test of concrete takes for 28 days. The results show that when the water-binder ratio is 0.49 and the ceramic fine aggregate content is less than 50%， the compressive strength of ceramic fine aggregate concrete and the reference concrete are of the same strength level， and all reach the strength level of C30. The optimal substitution rate is different for different ceramic fine aggregate substitution methods. Different substitution rates of ceramic fine aggregate correspond to different optimal substitution methods.

Key words: waste ceramics, fine aggregate, substitute mode, concrete, compressive strength