placing in water concrete

This paper introduces the requirements for the selection of raw materials in the construction of underwater engineering, expounds the performance and design of mix proportion of the tremie concrete, and probes into the reasons of the common accidents of the tremie concrete and the settlement measures.

介绍了水下工程施工中原材料的选择要求,阐述了水下浇注混凝土的性能及配合比设计,对水下混凝土常见事故原因与处理措施进行了探讨。

Due to the complex construction environment , the in-situ cement concrete road slab of the urban road often has some cracks during the construction and the early period after usage .

城市道路的现浇水泥混凝土路面板,由于施工环境复杂,施工中以及使用后早期常常产生一些裂缝,致使路面板在使用后时间不长即受破坏。