影响水下混凝土抗压和粘结劈裂抗拉强度的原因探析

Influencing Factors on Compressive Strength and Bond Splitting Tensile Strength of Underwater Concrete

为了解决在水库大坝水下工程施工过程中出现的水下浇筑混凝土强度不稳定问题,进一步准确掌握材料配比与施工工艺,我们在试验室对3种常用水下修补材料展开了针对性、系统性的试验,探析了影响水下混凝土抗压和粘结劈裂抗拉强度的因素,找到了提高强度指标的措施,取得了一些实用性的成果。

In the construction of underwater works of reservoir dams,the strengths of the underwater pouring concrete are sometimes unstable.To solve this problem and to get the accurate concrete proportion and construction technology,laboratory experiments are carried out on three common underwater repairing materials to analyze the factors that could influence the compressive strength and the bond splitting tensile strength of underwater concrete.Then,some practical measures are proposed to improve the strengths.