碾压混凝土路面的材料组成及特性  

Material Composition and Properties of Roller Compacted Concrete Pavements

作　　者：彭志云 PENG Zhiyun(Jiangxi Jiaotong Engineering&Technology Co.,Ltd.,Nanchang,Jiangxi 330013,China)

机构地区：[1]江西交院工程技术有限公司,江西南昌330013

出　　处：《黑龙江交通科技》2024年第8期50-54,共5页Communications Science and Technology Heilongjiang

摘　　要：为对碾压混凝土路面的材料组成及特性进行研究,通过室内试验的方法进行研究,研究结果表明:碾压混凝土路面的设计以抗折强度为标准,水泥掺量的增加能提高碾压混凝土的抗折强度;碾压混凝土中加入粉煤灰能改善试件的变形能力;水灰比对试件的干缩率影响大,在保证砂率不变的情况下,水灰比的增加能减小混凝土的干缩率,同时会降低试件的强度。The design of roller compacted concrete pavement is based on the flexural strength,the flexural strength of roller compacted concrete can be increased with the increase of cement content,the deformation of roller compacted concrete can be improved by adding fly ash,and the flexural strength of concrete can be improved by adding fly ash.The water-cement ratio has a great influence on the dry shrinkage ratio of the concrete.The increase of water-cement ratio can effectively reduce the dry shrinkage ratio of the concrete,but will reduce the strength of the concrete.

关 键 词：碾压混凝土 室内试验 配合比 特性 

分 类 号：U416.217[交通运输工程—道路与铁道工程]