摘要
在现有的研究基础上,通过开展试验重点分析了水灰比和成型压力对透水混凝土的强度和透水性影响规律,主要得出:水灰比对透水混凝土强度的影响规律与普通混凝土不同,在一定范围内透水混凝土的抗压强度随着水灰比的增加先增大后减小;随着水灰比增大,透水混凝土试件的透水系数逐渐提高;随着成型压力的增加,透水混凝土的强度先增大后降低,而透水性持续下降;本次试验中,水灰比为0.28,成型压力为3.5MPa时混凝土的强度最高,透水性也较好。
Based on the existing research, the experiment analyzes the influence of water-cement ratio and form-ing pressure on the strength and water permeability of pervious concrete, and the results show: The influence of wa-ter-cement ratio on the strength of pervious concrete is different from that of ordinary concrete. The compressivestrength of pervious concrete increases and then decreases with the increase of water-cement ratio; With the in-crease of water-cement ratio, the permeability coefficient of pervious concrete specimen increases gradually; Asthe forming pressure increases, the strength of the pervious concrete increases first and then decreases, and the wa-ter permeability continues to decrease; In this experiment, the water-cement ratio is 0.28, the forming pressure is3.5MPa, the concrete has the highest strength and the water permeability is good as well.
出处
《砖瓦》
2017年第9期21-23,40,共4页
Brick-tile
关键词
透水混凝土
透水系数
抗压强度
成型压力
pervious concrete
permeability coefficient
compressive strength
forming pressure
