Anti-cracking synergist suitable for solid waste-based concrete as well as preparation method and application of anti-cracking synergist

• Main Authors: LI MENG, TIAN DONGJUN, WANG FEI, FENG MEIJUN, WANG ZHENGZE, QU HENGHUI, ZHANG LUJUN
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2023
• 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 cementitious material excitants and concrete crack resistance, and particularly discloses an anti-crack synergist suitable for solid waste-based concrete as well as a preparation method and application of the anti-crack synergist. The anti-cracking synergist is prepared from the following components in parts by weight: 70 to 90 parts of alum, 80 to 100 parts of ammonium alum, 130 to 145 parts of basic aluminum sulfate, 30 to 50 parts of anhydrous calcium sulphoaluminate, 5 to 15 parts of limestone, 230 to 255 parts of alkali activation solution and 240 to 280 parts of water. The alkali activation solution is a solution formed by dissolving slaked lime, sodium bicarbonate, stearate and acetate in water. The anti-cracking synergist suitable for the solid waste-based concrete can obviously improve the chemical activity of solid waste, namely a superfine admixture, and solves the problems of low early strength, low setting and hardening rate and small amount of hydr