本文对三种水泥和三种产源的粉煤灰组成的各种配合比的混凝土进行了研究,发现28天抗压强度相等的各种粉煤灰有效系数有较大的变化范围,这取决于粉煤灰用量、水泥品种与化学外加剂的共同作用以及所选定的强度等级。除强度外,K值也可由其它性能算得。对于此项研究中使用的材料,作者发现碳化方面的有效系数与强度方面的有效系数是不相等的。 In this paper, three types of cement and three types of fly ash produced from various sources of concrete were studied. It was found that the effective coefficient of various fly ash with equal compressive strength for 28 days has a wide range of variation, which depends on For fly ash dosage, cement type and chemical admixture, and the selected strength level. In addition to strength, the K value can also be calculated from other properties. For the materials used in this study, the authors found that the effective coefficients for carbonization are not equal to the effective coefficients for strength.