- 目录
- 新型墙体材料与施工
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再生黏土砖粉蒸压砖的制备及强度影响因素研究
作者：陈博1，翟家欢2，翟爱良1
（1.山东农业大学 水利土木工程学院，山东 泰安 271018；2.泰山基业开发建设有限公司，山东 泰安 271018）
摘要：利用再生黏土砖粉作为生产蒸压砖的主要原料，通过正交试验研究了砖粉掺量、蒸压温度、水固比及土壤固化剂掺量对蒸压砖28 d抗压强度的影响。结果表明：各因素对蒸压砖28 d抗压强度影响的主次顺序为：土壤固化剂掺量>砖粉掺量>蒸压温度>水固比。按50%砖粉+30%砂+16%石灰+4%石膏+1%土壤固化剂，水固比0.14，蒸压温度175 ℃，制备的蒸压砖28 d抗压强度最高，达18.95 MPa，此时体积密度为1.82 g/cm3，吸水率为17.88%。
关键词：再生黏土砖粉；蒸压砖；正交试验；土壤固化剂
中图分类号：TU522.1 文献标识码：A 文章编号：1001-702X（2020）02-0095-05
Study on preparation and strength influencing factors of recycled clay brick powder autoclaved bricks
CHEN Bo1，ZHAI Jiahuan2，ZHAI Ailiang1
（1.College of Water Conservancy and Civil Engineering，Shandong Agricultural University，Tai'an 271018，China；
2.Taishan Foundation Industry Development and Construction Co. Ltd.，Tai'an 271018，China）
Abstract：Recycled clay brick powder was used as the main raw material for autoclaved brick production. Through orthogonal test，the effect of brick powder content，autoclaved temperature，water-solid ratio and soil solidifying agent content on the 28-day compressive strength of autoclaved brick was studied，and the influence significance of each factor on the 28-day compressive strength of autoclaved brick was soil stabilizer content > brick powder content > autoclaved temperature > water-solid ratio. Recycled clay brick powder autoclaved bricks with good physical performances were obtained based on the ratio of 50% brick powder+30% sand+16% lime+4% gypsum+1% soil solidifying agent，water-solid ratio of 0.14，autoclaved temperature of 175 ℃. The results of 28-day compressive strength test show that the compressive strength can reach 18.95 MPa，the volume density is 1.82 g/cm3 and the water absorption rate is 17.88%.
Key words：recycled clay brick powder，autoclaved brick，orthogonal test，soil stabilizer