双掺粉煤灰和矿渣粉对改性陶粒混凝土性能影响的研究

Study on effect of double-mixedfly ashand slag powderon propertiesof modified ceramsiteconcrete

研究了双掺粉煤灰与矿渣粉对陶粒混凝土和易性及早期强度、后期强度的影响,试验中采用松散体积法对陶粒混凝土的配合比进行设计,以确定最佳配合比,测定了12组不同配合比陶粒混凝土的抗压强度。研究结果表明:对陶粒混凝土进行拌合之前应将陶粒提前预湿6h;随着双掺掺合料比例的增加,双掺掺合料陶粒混凝土的抗压强度也随之增加;45%比例的双掺掺和料可代替水泥。

The paper studies the influence of double-mixed fly ash and slag powder on the workability, early strength and later strength of ceramsite concrete. In the experiment, the loose volume method is used to design the mix ratio of ceramsite concrete to determine the best mix ratio and measure the compressive strength of 12 groups of different mix proportions of ceramsite concrete. The research results show that the ceramsite should be pre-wetted for 6 h before mixing the ceramsite concrete;as the proportion of the double admixture increases, the compressive strength of the double admixture ceramsite concrete also increases;45% ratio of double admixture can replace cement.