本指南介绍了选择高强混凝土配合比的一般方法，以及在试验批次的基础上优化这些配合比的一般方法。这些方法仅限于含有硅酸盐水泥和粉煤灰、硅灰或矿渣水泥（以前称为磨细高炉矿渣）的高强度混凝土，并使用传统材料和生产技术生产。建议和表格基于承包商、混凝土供应商和参与高强度混凝土项目的工程师提供的当前实践和信息。

This guide presents general methods for selecting mixture proportions forhigh-strength concrete and optimizing these mixture proportions on thebasis of trial batches. The methods are limited to high-strength concrete containing portland cement and fly ash, silica fume, or slag cement(formerly referenced as ground-granulated blast-furnace slag) andproduced using conventional materials and production techniques.Recommendations and tables are based on current practice and infor-mation provided by contractors, concrete suppliers, and engineers whohave been involved in projects dealing with high-strength concrete.