摘要
道路运营中,桥梁伸缩缝混凝土表面出现较为密集的温缩裂缝为冬季除冰盐的渗入提供了通道,严重影响伸缩装置使用寿命,针对这种情况,从结构设计、原材料选择、配合比设计、施工工艺控制等方面,对如何防治伸缩缝混凝土温缩裂缝问题进行分析探讨,并结合实际应用提出了明确的意见与建议。
During the procedure of road operation, the concentrated temperature shrinkage cracks on theconcrete surface of the bridge expansion joint provide the channel for the penetration of deicing salt in winter, whichcan seriously influence the service life of the expansion device. Aiming at this kind of condition, the analysis anddiscussion on the problem of how to prevent the temperature shrinkage cracks of concrete on the expansion joint aremade from aspects like structural design, selection of raw material, design of mix proportion, constructiontechnology control and so on, and clear opinions and suggestions are put forward by combining with practicalapplication.
作者
黄秀新
HUANG Xiu-xin(Highway Administration Section of Benxi Manchu Autonomous County.Benxi 117000.China)
出处
《北方交通》
2018年第5期77-80,共4页
Northern Communications
关键词
伸缩装置
伸缩缝
温缩裂缝
Expansion device
Expansion joint;Temperature shrinkage cracks