Shrinkage-compensating self-compacting concrete and preparation method thereof

• Main Authors: YAN TAO, CHEN LI, ZHOU CANYUN, XIANG CHUNQIANG, WANG HONGLAI, DING FENG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2022
• 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 building materials, and particularly discloses shrinkage-compensating self-compacting concrete and a preparation method thereof. The shrinkage-compensating self-compacting concrete is prepared from the following raw materials in parts by weight: 100 to 200 parts of cement, 10 to 40 parts of mineral powder, 300 to 400 parts of coarse aggregate, 150 to 300 parts of fine aggregate, 2 to 10 parts of additive, 10 to 20 parts of expanding agent, 9 to 15 parts of rubber particles, 10 to 25 parts of polypropylene fiber and 50 to 90 parts of water, the expanding agent comprises the following raw materials in parts by weight: 10-20 parts of calcium oxide, 30-40 parts of magnesium oxide, 15-25 parts of zeolite, 5-15 parts of phosphorus slag powder and 10-20 parts of FTC particles. The preparation method comprises the following steps: mixing the raw materials of the expanding agent, and then mixing with other raw materials of the concrete to obtain the concrete. The concret