关键词: 喷射混凝土, 配合比设计, 配比规程, 骨料比例, 对比分析

Abstract: We have used a China, American and European regulations of concrete mix proportion design method, and we also have designed the mix proportion of shotcrete which strength grade is C30 and slump is 110 mm. Through the qualitative and quantitative analysis of three kinds of design steps and calculation methods, we have got the following conclusions: The effect of the amount of materials on the mix proportion is arranged in the order of the large to small is aggregate proportion, water cement ratio, water consumption or cement content; Determination of proportion of aggregate in China based on experience, the method of ACI is to determine the amount of coarse aggregate and then further determine the amount of fine aggregate, while Europe is get scientific and precise values by complex computation based on the FAURY method. By comparing three different methods we can see, choosing the same parameters, but the calculation of the mix proportion is different. Therefore, in actual engineering, we can combine two or three methods, so that we can better guide the shotcrete mix proportion design and construction work.