Recycled mortar and preparation and recycling method of recycled mortar

• Main Authors: LI BOWEN, SONG HUIYAN, ZHANG XIAOXUE, ZHU MINTAO, CHEN YIQUN, ZHANG JITAO, GONG XINRU, JI JING'AN
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• 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 provides recycled mortar and a preparation and recycling method of the recycled mortar. The preparation method of the recycled mortar comprises the following steps: step 1, determining the proportion of cement, recycled sand powder and an exciting agent in the recycled mortar; 2, dry-mixing the cement and the regenerated sand powder in a stirring pot according to the proportion in the step 1; 3, sequentially stacking the excitants in a beaker in a layered manner according to the types; step 4, when the stirring pot is in a slow stirring state, adding water into the beaker, and stirring by using a glass rod until the exciting agent is completely dissolved; and 5, adding water into the stirring pot until the materials are adhered to the inner wall of the periphery of the stirring pot and do not fall off, pouring the materials into a test mold, standing for molding, demolding and naturally curing. The dissolving time of sodium sulfate, sodium silicate, sodium carbonate and sodium hydroxide stacked