摘要
针对黄金湾水库所处的5类侵蚀环境对钢筋混凝土结构耐久性的要求,试验设计了单掺25%粉煤灰、单掺65%磨细矿渣(包含活化剂)、65%磨细矿渣(包含活化剂)与HLC阻锈剂复掺3组混凝土的配合比方案,开展相关混凝土力学和耐久性能对比研究,以此探讨粉煤灰、磨细矿渣和阻锈剂对海洋环境中混凝土耐久性的提升效果。试验结果表明:相对于粉煤灰混凝土,大掺量磨细矿渣混凝土具有更好的抗氯离子渗透和抗硫酸盐腐蚀能力,HLC阻锈剂的加入,提高了混凝土的抗氯离子渗透能力,增加了混凝土的密实性,减少了混凝土的碳化深度。
In view of the durability requirement for the concrete structure of Golden Bay Reservoir in 5 erosion environments, three groups of compound mix design with HLC inhibitor are proposed, three groups of compound mix design with HLC inhibitor are proposed, including the mixing 25% of fly ash, mixing 65% of slag （ containing activator） , mixture of 65 % of grounded slag （containing slag activator ） and HCL corrosion inhibitor. The comparative studies on the concrete mechanics performance and durability were carried out, and the improvement effects of fly ash, ground slag and HCL inhibitor on the concrete durability in marine environment were discussed. The results show that the concrete with high volume of grounded slag has better resistance to chloride ion penetration and sulfate attack, compared with the fly ash concrete. With the addition of HLC inhibitor, the resistance to chloride ion penetration and the compactness of concrete are enhanced, while the concrete carbonation depth is reduced.
出处
《人民长江》
北大核心
2013年第3期55-58,62,共5页
Yangtze River
关键词
磨细矿渣
阻锈剂
粉煤灰
高性能混凝土
海洋环境
grounded slag
corrosion inhibitor
fly ash
high performance concrete
marine environment
