- 目录
- 新型墙体材料与施工
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洁净化处理城市污泥复配竹炭制备保温砖工艺及其性能研究
作者：周升平1，贾晓东1，2，3
（1.重庆工商职业学院 城市建设工程学院，重庆 401520；2.重庆交通大学 土木工程学院，重庆 400074；
3.重庆交通大学 交通土建工程材料国家地方联合工程实验室，重庆 400074）
摘要：针对大量的城市污泥，从洁净化工艺出发，制成污泥粉，以制备烧结保温砖，并对其性能进行试验研究。结果表明：m（水泥）∶m（水）∶m（骨料）=1∶0.57∶3.12，污泥掺量为70%时，制备的烧结砖具有良好的力学性能；4%和6%的竹炭掺量制备的保温砖力学性能相近，但掺6%竹炭时所制烧结砖具有良好的保温隔热性能，此时的保温砖耐酸碱盐性能较好，且其放射性符合GB 6566—2010《建筑材料放射性核素限量》的要求。
关键词：城市污泥；保温砖；竹炭；力学性能；耐候性；放射性
中图分类号：TU522+.09 文献标识码：A 文章编号：1001-702X（2020）02-0113-04
Study on preparation technology and performance of thermal insulation brick from municipal sludge mixed with bamboo charcoal by cleaning treatment
ZHOU Shengping1，JIA Xiaodong1，2，3
（1.School of Urban Construction Engineering，Chongqing Vocational College of Industry and Commerce，Chongqing 401520，China；
2.College of Civil Engineering，Chongqing Jiaotong University，Chongqing 400074，China；
3.National Joint Engineering Laboratory of Traffic and Civil Engineering Materials，Chongqing Jiaotong University，Chongqing 400074，China）
3.National Joint Engineering Laboratory of Traffic and Civil Engineering Materials，Chongqing Jiaotong University，Chongqing 400074，China）
Abstract：Aiming at a large number of municipal sludge，this experiment mainly proceeds from the clean technology，makes sludge powder to prepare thermal insulation brick，and carries out experimental research on its performance. The results showed that the sintered bricks based on the quality of cement，water and aggregate（1∶0.57∶3.12） had good mechanical properties when the sludge content was 70%. The physical performances of the thermal insulation bricks prepared with 4% and 6% bamboo charcoal content were approximately the same，but the bamboo charcoal content with 6% had good thermal insulation. At this time，the insulation brick has good resistance to acid and alkali，and meets the requirements of GB 6566—2010 "Limit of Radionuclides for Building Materials".
Key words：municipal sludge，thermal insulation brick，bamboo charcoal，mechanical properties，weather resistance，radioactivity