Anti-crack impervious concrete and preparation method thereof

• Main Authors: SHI ZHUMING, WANG WUWEI
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention relates to the technical field of concrete, in particular to anti-crack and anti-seepage concrete and a preparation method thereof.The anti-crack and anti-seepage concrete is prepared from, by weight, 100-120 parts of cement, 30-50 parts of fly ash, 20-30 parts of mineral powder, 100-150 parts of fine stone, 2-20 parts of polyurethane hollow fibers internally provided with concrete powder, 2-5 parts of a water reducing agent and 30-60 parts of water; the concrete powder comprises cement and mineral powder. Part of concrete powder is arranged in the polyurethane hollow fibers, the strength of the fibers is improved, meanwhile, the elasticity and hydrophilicity of the polyurethane fibers are utilized, the bonding strength of the fibers and the concrete and the tensile limit value of the concrete are improved, and finally the crack resistance and seepage resistance of the concrete are improved. 本发明涉及混凝土技术领域，具体为一种抗裂防渗混凝土及其制备方法，所述抗裂防渗混凝土按重量份包括：水泥100-120份、粉煤灰30-50份、矿粉20-30份、细石100-150份、内置混凝土粉料的聚氨酯中空纤维2