摘要
模拟了混凝土受酸雨侵蚀试验,从质量、抗压强度、吸水率、酸性化深度等方面研究了粉煤灰含量(0~40%)对受酸雨侵蚀混凝土性能劣化规律的影响。结果表明:粉煤灰在酸雨侵蚀早期(1~2月)只起到填充作用,其活性效应发挥较慢。随着粉煤灰掺量的增加,掺粉煤灰混凝土致密性下降,在酸雨侵蚀下混凝土的各项性能衰减加快,其抵抗酸雨侵蚀能力也呈下降趋势。
The research on the influence of content of fly ash （0 - 40% ） on the performance deterioration law of concrete eroded by acid rain is made from some aspects like quality, compressive strength, water absorption, degree of acidity and so on by simulating the test on the concrete eroded by acid rain. The results show that ： fly ash only plays a role of filling in the early phase of acid rain erosion （ 1 - 2 month）, and its activity effect develops slowly. With the increase of content of fly ash, the compactness of concrete with fly ash decreases, the performance degradation of concrete under the erosion of acid rain accelerates, and the ability to resist acid rain also decreases.
作者
秦勇
QIN Yong(Shanxi Taijiu Expressway Management Limited Liability Company,Yangquan 045000,Chin)
出处
《北方交通》
2018年第2期30-34,共5页
Northern Communications
关键词
粉煤灰
混凝土
酸雨侵蚀
劣化规律
Fly ash
Concrete
Erosion of acid rain
Deterioration law
