苏州混凝土水泥制品研究院有限公司

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自来水厂尾泥协同建筑垃圾制备免烧砖及其性能研究
Study on Preparation and Properties of Non-fired Brick with Waterworks Sludge and Construction Waste
2022年第12期
免烧砖;自来水厂尾泥;建筑垃圾;抗压强度
Non-fired brick; Waterworks sludge; Construction waste; Compressive strength
2022年第12期
10.19761/j.1000-4637.2022.12.090.04
住房和城乡建设部科学技术计划项目(2021-K-114);江苏省建设行业科技计划项目(2021ZD53);南京市建设行业科技计划项目(Ks2153);江苏省水利科学研究院自主科研经费专项资金项目(2022Z016)。
方爱国1,2,杨中俊1,2,华苏东3,冯贵洋3,张亚男3,王春美4,郭刘超4,胡晓东4, 张艳芳1,2, 邓 翔1,2
1.中建安装集团有限公司,江苏 南京 210023;2.中建安装集团南京建设有限公司,江苏 南京 210046;3.南京工业大学 材料科学与工程学院,江苏 南京 211816;4.江苏省水利科学研究院,江苏 南京 210017

方爱国1,2,杨中俊1,2,华苏东3,冯贵洋3,张亚男3,王春美4,郭刘超4,胡晓东4,

张艳芳1,2, 邓 翔1,2

方爱国,杨中俊,华苏东,等.自来水厂尾泥协同建筑垃圾制备免烧砖及其性能研究[J].混凝土与水泥制品,2022(12):90-93.

FANG A G,YANG Z J,HUA S D,et al.Study on Preparation and Properties of Non-fired Brick with Waterworks Sludge and Construction Waste[J].China Concrete and Cement Products,2022(12):90-93.

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摘   要:以建筑垃圾、水泥和自来水厂尾泥(含水率为60%)为主要原材料制备了免烧砖,研究了水泥掺量、尾泥掺量和含水率对免烧砖抗压强度的影响,分析了尾泥固化的作用机制。结果表明,免烧砖的最佳配合比为:水泥20%+尾泥20%+建筑垃圾60%,此时,免烧砖的28 d抗压强度、抗冻性能、软化系数和吸水率均达到MU15非烧结垃圾尾矿砖的性能指标要求。实际生产时,需对免烧砖采取覆膜养护措施。 Abstract: The non-fired brick was prepared with construction waste, cement and waterworks sludge (with water content of 60%) as the main raw materials. The effects of cement content and waterworks sludge content and moisture content on the compressive strength of non-fired brick were studied, and the mechanism of the solidification of waterworks sludge was analyzed. The results show that the best mix proportion of non-fired brick is 20% of cement and 20% of waterworks sludge and 60% of construction waste. At this time, the 28 day compressive strength, frost resistance, softening coefficient and water absorption of non-fired brick meet the performance index requirements of MU15 non-fired rubbish gangue brick. In actual production, it is necessary to take film covering curing measures for non-fired bricks.
英文名 : Study on Preparation and Properties of Non-fired Brick with Waterworks Sludge and Construction Waste
刊期 : 2022年第12期
关键词 : 免烧砖;自来水厂尾泥;建筑垃圾;抗压强度
Key words : Non-fired brick; Waterworks sludge; Construction waste; Compressive strength
刊期 : 2022年第12期
DOI : 10.19761/j.1000-4637.2022.12.090.04
文章编号 :
基金项目 : 住房和城乡建设部科学技术计划项目(2021-K-114);江苏省建设行业科技计划项目(2021ZD53);南京市建设行业科技计划项目(Ks2153);江苏省水利科学研究院自主科研经费专项资金项目(2022Z016)。
作者 : 方爱国1,2,杨中俊1,2,华苏东3,冯贵洋3,张亚男3,王春美4,郭刘超4,胡晓东4, 张艳芳1,2, 邓 翔1,2
单位 : 1.中建安装集团有限公司,江苏 南京 210023;2.中建安装集团南京建设有限公司,江苏 南京 210046;3.南京工业大学 材料科学与工程学院,江苏 南京 211816;4.江苏省水利科学研究院,江苏 南京 210017

方爱国1,2,杨中俊1,2,华苏东3,冯贵洋3,张亚男3,王春美4,郭刘超4,胡晓东4,

张艳芳1,2, 邓 翔1,2

方爱国,杨中俊,华苏东,等.自来水厂尾泥协同建筑垃圾制备免烧砖及其性能研究[J].混凝土与水泥制品,2022(12):90-93.

FANG A G,YANG Z J,HUA S D,et al.Study on Preparation and Properties of Non-fired Brick with Waterworks Sludge and Construction Waste[J].China Concrete and Cement Products,2022(12):90-93.

摘要
参数
结论
参考文献
引用本文

摘   要:以建筑垃圾、水泥和自来水厂尾泥(含水率为60%)为主要原材料制备了免烧砖,研究了水泥掺量、尾泥掺量和含水率对免烧砖抗压强度的影响,分析了尾泥固化的作用机制。结果表明,免烧砖的最佳配合比为:水泥20%+尾泥20%+建筑垃圾60%,此时,免烧砖的28 d抗压强度、抗冻性能、软化系数和吸水率均达到MU15非烧结垃圾尾矿砖的性能指标要求。实际生产时,需对免烧砖采取覆膜养护措施。

Abstract: The non-fired brick was prepared with construction waste, cement and waterworks sludge (with water content of 60%) as the main raw materials. The effects of cement content and waterworks sludge content and moisture content on the compressive strength of non-fired brick were studied, and the mechanism of the solidification of waterworks sludge was analyzed. The results show that the best mix proportion of non-fired brick is 20% of cement and 20% of waterworks sludge and 60% of construction waste. At this time, the 28 day compressive strength, frost resistance, softening coefficient and water absorption of non-fired brick meet the performance index requirements of MU15 non-fired rubbish gangue brick. In actual production, it is necessary to take film covering curing measures for non-fired bricks.

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(1)干尾泥含水率低,容易结块,不易成型,宜采用原状尾泥(含水率60%)制备免烧砖。
(2)免烧砖的抗压强度随着水泥掺量的增加而增大,随着尾泥掺量的增加而降低,适宜的水泥掺量和尾泥掺量分别为20%和20%。最终确定免烧砖的最佳配合比为:水泥20%、尾泥20%、建筑垃圾60%、水固比0.08,此时,免烧砖的28 d抗压强度、软化系数、抗冻性能、吸水率等指标均满足JC/T 422—2007中MU15非烧结垃圾尾矿砖的性能指标要求,且免烧砖浸出液中的主要重金属离子浓度符合GB 16889—2008中的限值要求。

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方爱国,杨中俊,华苏东,.自来水厂尾泥协同建筑垃圾制备免烧砖及其性能研究[J].混凝土与水泥制品,2022(12):90-93.

FANG A G,YANG Z J,HUA S D,et al.Study on Preparation and Properties of Non-fired Brick with Waterworks Sludge and Construction Waste[J].China Concrete and Cement Products,2022(12):90-93.

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