摘要
研究了引气剂、掺合料、水胶比及减水剂品种对混凝土性能的影响。结果表明:合理的引气可显著改善混凝土的施工性能,同时混凝土的抗冻、抗盐冻性能显著提高,抗氯离子渗透性能也得到改善,并针对青岛海湾大桥的实际情况,提出了预应力引气混凝土梁的质量控制参数。
The effects of air entrainer,mineral admixture,water/binder ratio and types of water reducer on properties of concrete are studied.The results show that the workability,freeze resistance,salt freeze resistance and resistance to chlorine ion penetration can be improved significantly by appropriate air-entrainment.The parameters of quality control for air-entrained concrete of prestressed box girder of Qingdao Bay Bridge are also presented.
出处
《公路》
北大核心
2009年第9期145-150,共6页
Highway
关键词
引气混凝土
掺合料
抗冻
氯离子渗透
air-entraining concrete
mineral admixtures
freezing resistance
chlorine ion penetration
