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摘要: |
介绍了低水胶比与高矿物掺合料的高性能混凝土存在的主要问题之一-自收缩,并指出了自收缩是引起低水胶比混凝土早期开裂的主要原因,在总结国内外低水胶比水泥净浆与混凝土自收缩研究现状的基础上,提出了自收缩的研究方向。 |
关键词: 高性能混凝土 低水胶比 自收缩 劣化作用 |
DOI: |
分类号:TU528.31 |
基金项目:国家自然科学基金资助项目!@(5 933812 0 ) |
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Autogenous Shrinkage of High Performance Concrete |
AN Ming zhe ZHU Jin quan QIN Wei zu
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Abstract: |
Low water binder ratio and high content of mineral blend are main means to make HPC. In this paper it is pointed out that autogenous shrinkage is one of the most important problem to be solved for HPC, and it is a significant factor to cause early crack. Based on the various studies at home and abroad on autogenous shrinkage of cement pastes with low water binder ratio and concrete, the research direction is proposed. |
Key words: high performance concrete(HPC),low water binder ratio,autogenous shrinkage,bad effect |