关键词: 超厚模袋混凝土, 配合比, 抗压强度

Abstract: In order to solve the problems of large collapse degree and low filling rate of ultra-thick mold bag concrete in high temperature, large wave, high salt and high radiation environment, a suitable reference mix ratio for C30 ultra-thick mold bag concrete in a specific engineering project was tried to be determined by design test. Based on the evaluation method for self-compacting concrete performance, the collapse expansion time, flow expansibility of V-funnel and J-ring, segregation resistance and passing ability were used to evaluate the working performance of mold bag concrete. The working performance index of concrete was refined through experiments, and the effects of water-binder ratio, glue dosage, sand ratio and mineral admixture on the working performance of mold bag concrete were given in this paper. The related results can provide a reference for determining the final mix proportion of ultra-thick mold bag concrete used in practical construction.

Key words: ultra-thick mold bag concrete, mix proportion, compressive strength