轻质高强透水性混凝土的配制及性能研究
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摘要
采用陶粒-硅灰-矿粉复掺制备了轻质高强透水混凝土,并研究了增强剂、掺合料、陶粒替代率及养护制度对透水混凝土性能的影响。试验结果表明,影响混凝土的透水系数的主要因素是设计空隙率和成型时透水混凝土拌合的均匀性,通过掺入增强剂、矿物掺合料,采用合适的陶粒体积替代率及热水养护等方式可配制出抗压强度为34.5 MPa、透水系数为3.6 mm/s、干密度为1 802 kg/m~3的轻质高强高透水性混凝土。
Lightweight high-strength permeable concrete was prepared with ceramsite-silica fume-mineral power composite, and the influences of reinforcing agent, mineral admixture, substitution rate of ceramsite and curing systems on the performance of pervious concrete were studied. The test results show that the key influence factors of concrete permeability coefficient are the design porosity and the uniformity of pervious concrete mixing. The pervious concrete with strength of 34.5 MPa, water permeability of 3.6 mm/s and dry density of 1 802 kg/m~3 can be prepared by mixing strong gel,mineral admixture,appropriate volume replacement of ceramsite and hot water curing.
Lightweight high-strength permeable concrete was prepared with ceramsite-silica fume-mineral power composite, and the influences of reinforcing agent, mineral admixture, substitution rate of ceramsite and curing systems on the performance of pervious concrete were studied. The test results show that the key influence factors of concrete permeability coefficient are the design porosity and the uniformity of pervious concrete mixing. The pervious concrete with strength of 34.5 MPa, water permeability of 3.6 mm/s and dry density of 1 802 kg/m~3 can be prepared by mixing strong gel,mineral admixture,appropriate volume replacement of ceramsite and hot water curing.
引文
[1]刘双.透水性混凝土在海绵城市建设中的工程应用[J].混凝土世界,2019(1):87-90.
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[3]张卫东,王成武.生态型透水混凝土物理力学性能研究进展[J].混凝土与水泥制品,2017(2):1-5.
[4]冯翼平.C20透水混凝土配合比设计研究[J].中国新技术新产品,2017(6):67-69.
[5]胡立国.高强度透水混凝土试验研究[J].新型建筑材料,2017(3):16-19.
[6]杭美艳,李震,郝小龙.增强料的组分对透水混凝土性能的影响[J].硅酸盐通报,2017(1):223-227.
[7]崔正龙,童华彬.高温蒸压养护对再生混凝土力学性能影响的研究[J].硅酸盐通报,2014(3):596-599.
[2]周璐,范宗青.矿物掺合料对透水混凝土性能的影响[J].混凝土与水泥制品,2018(9):1-5.
[3]张卫东,王成武.生态型透水混凝土物理力学性能研究进展[J].混凝土与水泥制品,2017(2):1-5.
[4]冯翼平.C20透水混凝土配合比设计研究[J].中国新技术新产品,2017(6):67-69.
[5]胡立国.高强度透水混凝土试验研究[J].新型建筑材料,2017(3):16-19.
[6]杭美艳,李震,郝小龙.增强料的组分对透水混凝土性能的影响[J].硅酸盐通报,2017(1):223-227.
[7]崔正龙,童华彬.高温蒸压养护对再生混凝土力学性能影响的研究[J].硅酸盐通报,2014(3):596-599.