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High-strength water permeable brick prepared from waste sand and preparation method of high-strength water permeable brick
The invention relates to the technical field of water permeable bricks, in particular to a high-strength water permeable brick prepared from waste sand and a preparation method of the high-strength water permeable brick. Comprising the following steps that 1, the casting waste sand is smashed and screened, and coarse waste sand and fine waste sand are obtained; 2, the fine waste sand is placed in a hydrochloric acid solution to be pretreated, dried and subjected to heat treatment, and fine waste sand A is obtained; 3, basalt fibers are subjected to heat treatment, acetone soaking and silane coupling agent surface modification, polyvinyl alcohol aerogel is loaded on the surfaces, and a reinforcing agent is obtained; 4, the coarse waste sand is placed in deionized water, and hydrochloric acid is added for pretreatment; then sequentially adding a surfactant, porous ceramic, calcium carbonate whiskers, modified montmorillonite, eggshell powder, fine waste sand A, cement, neoprene latex, a reinforcing agent and a water reducing agent, and uniformly stirring to obtain a mixture; and step 5, pressing the mixture into a brick blank, air-drying the brick blank in a shade place until the water content is less than 10%, performing steam curing for 1-2 hours, and performing natural curing for 7-10 days to obtain the high-strength water permeable brick.
本发明涉及透水砖技术领域，具体为一种利用废砂制备的高强度透水砖及其制备方法。包括以下步骤：步骤1：将铸造废砂粉碎处理，筛分，得到粗废砂和细废砂；步骤2：将细废砂置于盐酸溶液中预处理、干燥、热处理，得到细废砂A；步骤3：将玄武岩纤维热处理、丙酮浸泡，硅烷偶联剂表面改性，表面负载聚乙烯醇气凝胶，得到增强剂；步骤4：将粗废砂置于去离子水中，加入盐酸进行预处理；然后依次加入表面活性剂、多孔陶瓷、碳酸钙晶须、改性蒙脱土、蛋壳粉、细废砂A、水泥、氯丁胶乳、增强剂、减水剂搅拌均匀，得到混合料；步骤5：将混合料压制成砖坯，阴凉处风干至含水量为＜10％，蒸汽养护1～2小时，自然养护7～10天，得到高强度透水砖。
High-strength water permeable brick prepared from waste sand and preparation method of high-strength water permeable brick
The invention relates to the technical field of water permeable bricks, in particular to a high-strength water permeable brick prepared from waste sand and a preparation method of the high-strength water permeable brick. Comprising the following steps that 1, the casting waste sand is smashed and screened, and coarse waste sand and fine waste sand are obtained; 2, the fine waste sand is placed in a hydrochloric acid solution to be pretreated, dried and subjected to heat treatment, and fine waste sand A is obtained; 3, basalt fibers are subjected to heat treatment, acetone soaking and silane coupling agent surface modification, polyvinyl alcohol aerogel is loaded on the surfaces, and a reinforcing agent is obtained; 4, the coarse waste sand is placed in deionized water, and hydrochloric acid is added for pretreatment; then sequentially adding a surfactant, porous ceramic, calcium carbonate whiskers, modified montmorillonite, eggshell powder, fine waste sand A, cement, neoprene latex, a reinforcing agent and a water reducing agent, and uniformly stirring to obtain a mixture; and step 5, pressing the mixture into a brick blank, air-drying the brick blank in a shade place until the water content is less than 10%, performing steam curing for 1-2 hours, and performing natural curing for 7-10 days to obtain the high-strength water permeable brick.
本发明涉及透水砖技术领域，具体为一种利用废砂制备的高强度透水砖及其制备方法。包括以下步骤：步骤1：将铸造废砂粉碎处理，筛分，得到粗废砂和细废砂；步骤2：将细废砂置于盐酸溶液中预处理、干燥、热处理，得到细废砂A；步骤3：将玄武岩纤维热处理、丙酮浸泡，硅烷偶联剂表面改性，表面负载聚乙烯醇气凝胶，得到增强剂；步骤4：将粗废砂置于去离子水中，加入盐酸进行预处理；然后依次加入表面活性剂、多孔陶瓷、碳酸钙晶须、改性蒙脱土、蛋壳粉、细废砂A、水泥、氯丁胶乳、增强剂、减水剂搅拌均匀，得到混合料；步骤5：将混合料压制成砖坯，阴凉处风干至含水量为＜10％，蒸汽养护1～2小时，自然养护7～10天，得到高强度透水砖。
High-strength water permeable brick prepared from waste sand and preparation method of high-strength water permeable brick
一种利用废砂制备的高强度透水砖及其制备方法
HU SHENGLI (author) / REN WENQIANG (author) / WU WUCAN (author)
2023-02-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-strength environment-friendly water permeable brick
| European Patent Office | 2023