Method for increasing use amount of air-quenched steel slag aggregate in concrete

• Main Authors: QU XINMING, HU XIANZHU, LIN CHUNHONG, CHEN JIN, CHEN YITAO, FAN DONGDONG, JIANG AJUAN
• Format: Patent
• Language: Chinese; English
• Published: 16.04.2024
• 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 provides a method for increasing the use amount of air-quenched steel slag aggregate in concrete, and relates to the technical field of steel slag waste recovery. Comprising the following steps: (1) weighing calcium lignosulphonate and silicon-containing powder, uniformly mixing to obtain a modifier, adding water into the modifier, and stirring and dissolving to obtain modified slurry; (2) weighing air-quenched steel slag, pouring the modified slurry into the air-quenched steel slag, uniformly stirring, standing and drying to obtain modified air-quenched steel slag; and (3) mixing the modified air-quenched steel slag with pebbles, gravels, yellow sand and cement, adding water, uniformly stirring to obtain a mixture, molding the mixture to obtain a green body, and maintaining the green body. The method not only improves the use amount of the modified air-quenched steel slag aggregate in the concrete, but also can improve the strength of the concrete. 本发明提供一种提高风淬钢渣骨料在混凝土中用量的方法，涉及钢渣废料回收技术领域。包括如下步骤：