A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing building material by using asbestos tailings
The invention particularly relates to a method for preparing a building material by using asbestos tailings, the method for preparing the building material by usingthe asbestos tailings comprises the following steps: pretreatment of asbestos tailings: crushing and sieving; harmless treatment of acid leaching of asbestos tailings: adding sulfuric acid into the asbestos tailings pretreated in the first step, standing and soaking, and obtaining a magnesium sulfate-containing acid leaching mixture; and 2, preparation of the asbestos tailing building material: stirring light calcined magnesia, a modifier, a water reducer and the magnesium sulfate-containing acid leaching mixture obtained in the step 2 until slurry is uniform, pouring the obtained slurry into a mold for vibration or pressure molding, and curing to obtain the asbestos tailing building material. According to the method for directly preparing the magnesium oxysulfate building material by using the asbestos tailings, the treatment problem of the asbestos tailings is effectively solved, the production cost of the magnesium oxysulfate cement is reduced, the treatment cost of the tailings is saved, and good economic benefits and ecological benefits can be obtained.
本发明具体涉及一种利用石棉尾矿制备建筑材料的方法，该利用石棉尾矿制备建筑材料的方法，包括步骤：石棉尾矿预处理：破碎，过筛；石棉尾矿酸浸无害化：将硫酸加入到步骤一预处理后的石棉尾矿中，静置浸泡，得到含硫酸镁酸浸混合物；石棉尾矿建筑材料的制备：将轻烧氧化镁、改性剂、减水剂以及步骤二所得的含硫酸镁酸浸混合物搅拌至料浆均匀，将得到的料浆倒入模具中振动或加压成型，经过养护，即可得到石棉尾矿建筑材料。本发明利用石棉尾矿直接制备硫氧镁建筑材料的方法，有效解决了石棉尾矿处理问题，降低了硫氧镁水泥的生产成本，节省了尾矿处理的成本，可取得良好的经济效益和生态效益。
Method for preparing building material by using asbestos tailings
The invention particularly relates to a method for preparing a building material by using asbestos tailings, the method for preparing the building material by usingthe asbestos tailings comprises the following steps: pretreatment of asbestos tailings: crushing and sieving; harmless treatment of acid leaching of asbestos tailings: adding sulfuric acid into the asbestos tailings pretreated in the first step, standing and soaking, and obtaining a magnesium sulfate-containing acid leaching mixture; and 2, preparation of the asbestos tailing building material: stirring light calcined magnesia, a modifier, a water reducer and the magnesium sulfate-containing acid leaching mixture obtained in the step 2 until slurry is uniform, pouring the obtained slurry into a mold for vibration or pressure molding, and curing to obtain the asbestos tailing building material. According to the method for directly preparing the magnesium oxysulfate building material by using the asbestos tailings, the treatment problem of the asbestos tailings is effectively solved, the production cost of the magnesium oxysulfate cement is reduced, the treatment cost of the tailings is saved, and good economic benefits and ecological benefits can be obtained.
本发明具体涉及一种利用石棉尾矿制备建筑材料的方法，该利用石棉尾矿制备建筑材料的方法，包括步骤：石棉尾矿预处理：破碎，过筛；石棉尾矿酸浸无害化：将硫酸加入到步骤一预处理后的石棉尾矿中，静置浸泡，得到含硫酸镁酸浸混合物；石棉尾矿建筑材料的制备：将轻烧氧化镁、改性剂、减水剂以及步骤二所得的含硫酸镁酸浸混合物搅拌至料浆均匀，将得到的料浆倒入模具中振动或加压成型，经过养护，即可得到石棉尾矿建筑材料。本发明利用石棉尾矿直接制备硫氧镁建筑材料的方法，有效解决了石棉尾矿处理问题，降低了硫氧镁水泥的生产成本，节省了尾矿处理的成本，可取得良好的经济效益和生态效益。
Method for preparing building material by using asbestos tailings
一种利用石棉尾矿制备建筑材料的方法
ZHANG ZHIYUAN (author) / LI KUILIN (author) / YANG LICHI (author)
2021-11-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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