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A platform for research: civil engineering, architecture and urbanism
High-impermeability concrete and preparation method thereof
The invention discloses high-impermeability concrete and a preparation method thereof, and relates to the technical field of concrete. The concrete is prepared from the following raw materials in parts by weight: 240 to 360 parts of cement, 40 to 100 parts of fly ash, 700 to 900 parts of gravel, 550 to 700 parts of sand, 10 to 30 parts of expanding agent, 15 to 35 parts of water reducing agent, 10 to 40 parts of composite fiber and 96 to 186 parts of water, wherein the composite fibers comprise lignin modified polyvinyl alcohol fibers, polypropylene fibers and common fibers, and the weight ratio of the lignin modified polyvinyl alcohol fibers to the polypropylene fibers to the common fibers is 1: (0.5-1.1): (0.2-0.8); the lignin modified polyvinyl alcohol fiber comprises the following raw materials: polyvinyl alcohol, enzymolysis modified lignin and a solvent in a weight ratio of 1: (0.1-0.8): (9-11); the enzymolysis modified lignin is prepared from the following raw materials in parts by weight: 40 to 80 parts of lignin, 120 to 240 parts of distilled water and 20 to 40 parts of biological enzyme. According to the concrete provided by the invention, the anti-seepage pressure and the anti-freezing capacity of the concrete can be effectively improved, and the maximum anti-seepage pressure can reach 7.6 MPa.
本申请公开了一种高抗渗混凝土及其制备方法，涉及混凝土技术领域。所述混凝土包含以下重量份的原料：水泥240‑360份，粉煤灰40‑100份，碎石700‑900份，砂550‑700份，膨胀剂10‑30份，减水剂15‑35份，复合纤维10‑40份，水96‑186份；其中，所述复合纤维中包括木质素改性聚乙烯醇纤维、聚丙烯纤维、普通纤维，三者的重量比为1：（0.5‑1.1）：（0.2‑0.8）；其中所述木质素改性聚乙烯醇纤维原料包括聚乙烯醇、酶解改性木质素、溶剂，三者的重量比为1：（0.1‑0.8）：（9‑11）；所述酶解改性木质素由以下重量份原料组成：木质素40‑80份，蒸馏水120‑240份，生物酶20‑40份。本申请提供的混凝土，能够有效提高混凝土的抗渗压力和抗冻能力，最大抗渗压力可以达到7.6MPa。
High-impermeability concrete and preparation method thereof
The invention discloses high-impermeability concrete and a preparation method thereof, and relates to the technical field of concrete. The concrete is prepared from the following raw materials in parts by weight: 240 to 360 parts of cement, 40 to 100 parts of fly ash, 700 to 900 parts of gravel, 550 to 700 parts of sand, 10 to 30 parts of expanding agent, 15 to 35 parts of water reducing agent, 10 to 40 parts of composite fiber and 96 to 186 parts of water, wherein the composite fibers comprise lignin modified polyvinyl alcohol fibers, polypropylene fibers and common fibers, and the weight ratio of the lignin modified polyvinyl alcohol fibers to the polypropylene fibers to the common fibers is 1: (0.5-1.1): (0.2-0.8); the lignin modified polyvinyl alcohol fiber comprises the following raw materials: polyvinyl alcohol, enzymolysis modified lignin and a solvent in a weight ratio of 1: (0.1-0.8): (9-11); the enzymolysis modified lignin is prepared from the following raw materials in parts by weight: 40 to 80 parts of lignin, 120 to 240 parts of distilled water and 20 to 40 parts of biological enzyme. According to the concrete provided by the invention, the anti-seepage pressure and the anti-freezing capacity of the concrete can be effectively improved, and the maximum anti-seepage pressure can reach 7.6 MPa.
本申请公开了一种高抗渗混凝土及其制备方法，涉及混凝土技术领域。所述混凝土包含以下重量份的原料：水泥240‑360份，粉煤灰40‑100份，碎石700‑900份，砂550‑700份，膨胀剂10‑30份，减水剂15‑35份，复合纤维10‑40份，水96‑186份；其中，所述复合纤维中包括木质素改性聚乙烯醇纤维、聚丙烯纤维、普通纤维，三者的重量比为1：（0.5‑1.1）：（0.2‑0.8）；其中所述木质素改性聚乙烯醇纤维原料包括聚乙烯醇、酶解改性木质素、溶剂，三者的重量比为1：（0.1‑0.8）：（9‑11）；所述酶解改性木质素由以下重量份原料组成：木质素40‑80份，蒸馏水120‑240份，生物酶20‑40份。本申请提供的混凝土，能够有效提高混凝土的抗渗压力和抗冻能力，最大抗渗压力可以达到7.6MPa。
High-impermeability concrete and preparation method thereof
一种高抗渗混凝土及其制备方法
FANG XIAOWEI (author) / DING JIANJIAN (author) / DAI XINYU (author)
2024-03-22
Patent
Electronic Resource
Chinese
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