摘要
基于箱梁混凝土的抗裂性,研究了聚丙烯纤维对混凝土工作性、抗压强度和劈拉强度的影响,采用大板法比较了几组混凝土的抗裂性,配制出了抗裂性能良好的C55大跨箱梁混凝土。
Using crack resistance as a main design target, the effect of the polypropylene fiber on the workability , com- pressive strength and splitting strength of the concrete was studied, the crack resistance of some group of concrete were com- pared by the method of flat experiment and C55 large-span concrete box girder with favorable crack resistance was confected.
出处
《建材世界》
2009年第3期21-24,共4页
The World of Building Materials
关键词
大跨度箱梁
配合比
抗裂
large-span concrete box girder
mix design
crack resistance
