摘要
采用5种单一粒径的再生粗骨料配制无砂多孔混凝土,通过测定多孔混凝土的有效孔隙率、透水系数和抗压强度等性能,研究了再生粗骨料粒径、目标孔隙率和水灰比对再生粗骨料无砂多孔混凝土透水性能和力学强度的影响规律。试验结果表明:透水系数随着再生粗骨料粒径和目标孔隙率的增大而增加,小幅度变化的水灰比对透水系数的影响相对较小。
Using five kinds of single particle size recycled coarse aggregate no-fines porous concrete,through the determination of the effective porosity,permeability coefficient and compressive strength of porous concrete,the influence of recycled coarse aggregate size,target porosity and water cement ratio on permeability and mechanical strength of recycled coarse aggregate no-fines porous concrete is studied.The results show that the permeability coefficient increases with the increase of the size of the recycled coarse aggregate and the porosity of the target,and small amplitude change of water cement ratio has a relatively small impact on the permeability coefficient.
作者
边亚东
洪诚
孙光林
崔力
王克俭
王盟盟
BIAN Yadong;HONG Cheng;SUN Guanglin;CUI Li;WANG Kejian;WANG Mengmeng(School of Civil Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China)
出处
《混凝土》
CAS
北大核心
2018年第11期145-147,151,共4页
Concrete
基金
国家自然科学基金项目(51574296)
河南省重点研发与推广专项(科技攻关)项目(182102310749)
河南省高等学校重点科研项目(18B560016)
关键词
再生粗骨料
骨料粒径
无砂多孔混凝土
有效孔隙率
透水性能
recycled coarse aggregate
aggregate size
no-fines porous concrete
effective porosity
permeable performance
