摘要
为使混凝土具有良好的耐久性,必须先解决混凝土的抗裂性.因此,在混凝土原材料中加入聚丙烯纤维、微硅粉、矿渣来优化混凝土的抗裂性.用试验手段和正交设计来分析不同掺量时聚丙烯纤维、微硅粉以及矿渣对混凝土抗裂性能的影响.试验结果显示:聚丙烯纤维对混凝土的性能影响尤为显著;掺入微硅粉有利于增强混凝土的抗压强度和抗抗劈裂强度;复合化使用聚丙烯纤维、微硅粉、矿渣能明显改善混凝土的后期强度;聚丙烯纤维、微硅粉、矿渣在混凝土中的最佳掺量为0.015%,7%,7%.
In order to have good durability of concrete,must be resolved before the crack resistance of concrete.Therefore,adding polypropylene fiber concrete raw materials,micro silica fume,slag to optimize the cracking of concrete.Orthogonal design with the test methods and to analyze the different content of polypropylene fibers,micro silica fume and slag concrete crack resistance.The results showed that： polypropylene fiber on performance of concrete is particularly significant;help enhance the incorporation of micro-silica concrete compressive strength and resistance to anti-splitting strength;composite using polypropylene fibers,micro silica fume,slag can improve the concrete The late strength;polypropylene fiber,micro silica fume and slag in concrete the best content is 0.015 %,7 %,7 %.
出处
《吉林建筑工程学院学报》
CAS
2011年第2期69-71,共3页
Journal of Jilin Architectural and Civil Engineering
基金
浙江省交通厅科技计划项目(2007H29)
关键词
混凝土
抗裂性
聚丙烯纤维
微硅粉
矿渣
concrete
crack resistance
polypropylene fiber
micro silica fume
slag
