高性能砼应用中的问题及处理措施

Problems in Application of High Performance Concrete and the Measures

高性能砼(HPC)是符合特殊性能组合与均质性要求的砼,用传统的原材料和一般的施工工艺方法制作很难达到高性能砼要求,重点分析了HPC用原料——水泥、砂石骨料、外加剂、外掺合物的质量问题及其对策。同时,对HPC的生产和施工质量(包括配比、拌合、浇筑和养护)控制,以及水泥和外加剂的适应性问题均进行了探讨。

High Performance Cocrete（HPC） is the kind of conrete has special： performances and homogeneity, which can not be produced by conventional raw material and process. The paper analysed mainly on the quality problems of HPC raw materials as cement, retainer, additive and admixture and the measures, and discussed the control of production and construction quality including proportion, mixing, casting and curing as well as the adaptability of cement and additive.