摘要
通过配制15组不同水胶比(0. 4、0. 5、0. 6)和每组粉煤灰掺量(0%、5%、10%、15%、20%)的标准圆柱体混凝土试件(50 mm×100 mm),采用水中养护方式,用TAW-2000电液伺服岩石三轴试验机渗流模块测定各组混凝土试件在特定轴压、孔压和围压作用下的渗透率。结果表明,水胶比越小,混凝土的渗透率越小;粉煤灰掺量越大,混凝土的渗透率越小。
Standard cylindrical concrete specimens （50mmx100mm） were prepared with 15 groups of different water-cement ratios （0.4, 0.5, 0.6） and each group of mixed fly ash （0%,5%,10%,15%, 20%）.Adopt water conservation method.The permeability of each group of concrete specimens under specific axial pressure,hole pressure and confining pressure was determined by the seepage module of the TAW-2000 electro-hydraulic servo triaxial rock testing machine.The smaller the water-cement ratio,the smaller the permeability of concrete.The higher the fly ash content, the smaller the permeability of concrete.
作者
王晓凡
WANG Xiao-fan(School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056001,Hebei,China)
出处
《水利科技与经济》
2018年第11期31-35,共5页
Water Conservancy Science and Technology and Economy
关键词
水胶比
粉煤灰
混凝土
渗透试验
water-cement ratio
fly ash
concrete
permeability test
