摘要
通过总结胡佛大坝低热水泥的研究背景、研究过程、混凝土性能特点以及应用技术和效果，得到低热水泥大坝混凝土综合性能优越且强度持续缓慢增长，混凝土质量优良，但同时观测到低热水泥大坝混凝土在通水冷却结束后的0．5～14．5a温度出现较大幅度回升，浇筑13．5a年后大坝混凝土内部测点实测温度平均回升12．6℃。借鉴胡佛大坝经验，得到一些启示，结合我国研究和实践，推动我国低热水泥混凝土技术的推广应用。
The research background and process, concrete performance characteristics, application technology and effects of low heat Portland cement in Hoover Dam are summarized herein. The results show that, the dam concrete prepared by low heat Portland cement has excellent comprehensive performance and its compressive strength continue to grow with a slow speed, but the temperature of low heat Portland cement dam ooncrete appears to rise significantly in 0.5- 14.5 years after the end of the artificial cooling. The measured temperature inside concrete dam has averagely risen 12. 6℃ after 13.5 years of concrete placing. Based on the research results and experiences mentioned above, and combined with our own researches and practices, the application of low heat cement concrete technologies will be promoted in China.
出处
《水力发电》
北大核心
2016年第12期46-49,59,共5页
Water Power
基金
国家重点研发计划项目(2016YFB0303600)
国家自然科学基金青年基金项目(51209219)
