C55大跨箱梁混凝土配合比设计与抗裂评估  

Mix Proportion Design and Crack Resistance Evaluation on C55 Large-span Concrete Box Girder

作　　者：夏京亮[1] 李北星[1] 柯国炬[1] 崔巩[1] 高鹤[1] 查进[1] 

机构地区：[1]武汉理工大学硅酸盐材料工程教育部重点实验室,武汉430070

出　　处：《建材世界》2009年第3期21-24,共4页The World of Building Materials

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.

关 键 词：大跨度箱梁 配合比 抗裂 

分 类 号：U444[建筑科学—桥梁与隧道工程]