硅酸盐通报2018，Vol.37Issue(5)：1556-1562,7.
干旱区输电线路混凝土碳化深度及力学性能研究
Research on Carbonation Depth and Mechanical Properties of Concrete of Transmission Lines in Arid Areas
摘要
Abstract
By simulating the environmental characteristics of northwest arid areas and the loading conditions of transmission tower foundation , the indoor accelerated carbonation test of reinforced concrete members were carried out.The influence law of water-cement ratio, mineral admixtures, carbon dioxide concentration and stress state on the carbonation depth of concrete members and mechanical properties of carbonated concrete members were analyzed .The results show that the compressive strength of carbonated concrete increase with the decrease of water -cement ratio and the flexural strength of carbonated concrete decrease with the decrease of water -cement ratio.The incorporation of mineral admixtures does not significantly improve the carbonation resistance of concrete .The concrete carbonation depth in the tension zone is obviously larger than that of the compression zone .According to the characteristics of the arid area environment, a calculation method of the influence coefficient of relative humidity and carbon dioxide concentration for carbonation depth prediction model is proposed关键词
干旱区/混凝土/杆塔基础/碳化深度/力学性能Key words
arid area/concrete/tower foundation/depth of carbonization/mechanical property分类
通用工业技术引用本文复制引用
李明,张琰,王彦良,李勇,陈鄂球,殷晓鹏..干旱区输电线路混凝土碳化深度及力学性能研究[J].硅酸盐通报,2018,37(5):1556-1562,7.基金项目
国家电网公司科技项目(GCB17201600152) （GCB17201600152）
