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A platform for research: civil engineering, architecture and urbanism
Construction waste recycled aggregate high-impermeability concrete and preparation method thereof
The invention relates to the technical field of concrete, and discloses construction waste recycled aggregate high-impermeability concrete and a preparation method thereof, construction waste recycled coarse aggregate and fine aggregate are compounded with P.O42.5 cement, S95 mineral powder, an additive, a styrene butadiene rubber polymer and the like to obtain a construction waste recycled aggregate high-impermeability concrete material with high strength and excellent impermeability; after standard curing for 28 days, the compressive strength reaches C50 or above, and the highest strength reaches 67.2 MPa; the bending-tensile strength can reach 7.9 MPa to the maximum degree; the highest splitting strength reaches 4.6 MPa, and the highest compression elasticity modulus is larger than or equal to 45 GPa; the chloride ion diffusion coefficient is low, and the total electric conduction amount (C) is smaller than or equal to 1000 at the age of 28 d and 6 h; and the anti-permeability grade of the concrete reaches P12 to the maximum. The concrete can be applied to engineering parts such as basements, enclosure buildings, municipal comprehensive pipe galleries and the like with high anti-permeability grade requirements, natural resources can be greatly saved, and urban construction waste can be effectively absorbed.
本发明涉及混凝土技术领域，且公开了一种建筑垃圾再生骨料高抗渗性混凝土及其制备方法，将建筑垃圾再生粗骨料和细骨料，与P.O42.5水泥、S95矿粉、外加剂、丁苯橡胶聚合物等复配得到强度高、抗渗性优良的建筑垃圾再生骨料高抗渗性混凝土材料；经标准养护28d抗压强度达到C50以上，强度最高达到67.2MPa；弯拉强度最高达到7.9MPa；劈裂强度最高达到4.6MPa，受压弹性模量最高≥45GPa；氯离子扩散系数低，以28d龄期，6h总导电量(C)≤1000；混凝土抗渗等级最高达到P12。该种混凝土可应用于地下室、围挡建筑物、市政综合管廊等抗渗等级要求高的工程部位，可大量节约天然资源，有效消纳城市建筑垃圾。
Construction waste recycled aggregate high-impermeability concrete and preparation method thereof
The invention relates to the technical field of concrete, and discloses construction waste recycled aggregate high-impermeability concrete and a preparation method thereof, construction waste recycled coarse aggregate and fine aggregate are compounded with P.O42.5 cement, S95 mineral powder, an additive, a styrene butadiene rubber polymer and the like to obtain a construction waste recycled aggregate high-impermeability concrete material with high strength and excellent impermeability; after standard curing for 28 days, the compressive strength reaches C50 or above, and the highest strength reaches 67.2 MPa; the bending-tensile strength can reach 7.9 MPa to the maximum degree; the highest splitting strength reaches 4.6 MPa, and the highest compression elasticity modulus is larger than or equal to 45 GPa; the chloride ion diffusion coefficient is low, and the total electric conduction amount (C) is smaller than or equal to 1000 at the age of 28 d and 6 h; and the anti-permeability grade of the concrete reaches P12 to the maximum. The concrete can be applied to engineering parts such as basements, enclosure buildings, municipal comprehensive pipe galleries and the like with high anti-permeability grade requirements, natural resources can be greatly saved, and urban construction waste can be effectively absorbed.
本发明涉及混凝土技术领域，且公开了一种建筑垃圾再生骨料高抗渗性混凝土及其制备方法，将建筑垃圾再生粗骨料和细骨料，与P.O42.5水泥、S95矿粉、外加剂、丁苯橡胶聚合物等复配得到强度高、抗渗性优良的建筑垃圾再生骨料高抗渗性混凝土材料；经标准养护28d抗压强度达到C50以上，强度最高达到67.2MPa；弯拉强度最高达到7.9MPa；劈裂强度最高达到4.6MPa，受压弹性模量最高≥45GPa；氯离子扩散系数低，以28d龄期，6h总导电量(C)≤1000；混凝土抗渗等级最高达到P12。该种混凝土可应用于地下室、围挡建筑物、市政综合管廊等抗渗等级要求高的工程部位，可大量节约天然资源，有效消纳城市建筑垃圾。
Construction waste recycled aggregate high-impermeability concrete and preparation method thereof
一种建筑垃圾再生骨料高抗渗性混凝土及其制备方法
CHU FENGMING (author) / ZHAO LIANDI (author) / CHU TIANSHU (author)
2023-05-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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