Artificial sand and preparation method thereof

The invention discloses artificial sand and a preparation method thereof. The preparation method comprises: crushing waste concrete to prepare an artificial sand crude product; and soaking the artificial sand crude product in cement slurry, draining water, sieving in hot air, and drying in hot air. The waste concrete is used as the raw material to prepare the artificial sand, so that waste can beturned into wealth, resource utilization, garbage harmlessness and reduction are achieved, and environmental pollution is avoided; and in the preparation process of the artificial sand, the artificialsand crude product is subjected to cement paste dipping surface treatment, so that the particle size of the artificial sand prepared from the waste concrete can be improved, surface gaps are sealed,and the performance of the artificial sand is improved. 本发明公开了一种人工砂及其制备方法，该制备方法包括：对废弃混凝土破碎制成人工砂粗品；再采用水泥浆液对人工砂粗品进行浸泡处理，沥干水分后在可热空气中过筛，并进行热空气干燥处理。本发明采用废弃混凝土作为原料制备人工砂，可变废为宝，实现资源化利用、垃圾无害化和减量化，避免环境污染；且在人工砂制备过程，通过对人工砂粗品进行水泥浆浸渍表面处理，可改善