工业废渣复合胶凝材料泡沫轻质土制备及性能

硅酸盐通报 ›› 2022, Vol. 41 ›› Issue (6): 2108-2116.

所属专题：资源综合利用

工业废渣复合胶凝材料泡沫轻质土制备及性能

赵正峰¹, 王笑风^2,3,4, 王国栋⁵, 褚付克^2,3,4, 闫毅军⁵, 王晔晔^2,3,4, 殷卫永^2,3,4

1.洛阳市公路事业发展中心洛界高速公路管理处,洛阳 471000;
2.交通运输行业公路建设与养护技术、材料及装备研发中心,郑州 450000;
3.河南省交通规划设计研究院股份有限公司,郑州 450000;
4.河南省固废材料道路工程循环利用重点实验室,郑州 450000;
5.河南路星工程管理有限公司,洛阳 471000

收稿日期:2021-12-29 修订日期:2022-03-18 出版日期:2022-06-15 发布日期:2022-07-01
通信作者: 王笑风,博士,教授级高级工程师。E-mail:519941143@qq.com
作者简介:赵正峰(1977—),男,高级工程师。主要从事道路桥梁工程方面的技术研究。E-mail:1320222179@qq.com
基金资助:
中原千人计划-中原科技创新领军人才项目资助(204200510004);河南省交通运输厅科技项目(2020J3);2021年洛阳市新产品新技术新工艺研发项目(2101060B)

Preparation and Properties of Industrial Waste Residue Composite Cementitious Foamed Lightweight Soil

ZHAO Zhengfeng¹, WANG Xiaofeng^2,3,4, WANG Guodong⁵, CHU Fuke^2,3,4, YAN Yijun⁵, WANG Yeye^2,3,4, YIN Weiyong^2,3,4

1. Luoyang Highway Development Center Luojie Expressway Management Office, Luoyang 471000, China;
2. Research and Development Center of Transport Industry of Technologies, Materials and Equipments of Highway Construction and Maintenance, Zhengzhou 450000, China;
3. Henan Provincial Communications Planning & Design Institute Co. Ltd., Zhengzhou 450000, China;
4. Henan Key Laboratory of Recycling Solid Waste Materials for Road Engineering, Zhengzhou 450000, China;
5. Henan Luxing Engineering Management Co., Ltd., Luoyang 471000, China

Received:2021-12-29 Revised:2022-03-18 Online:2022-06-15 Published:2022-07-01

摘要/Abstract

摘要： 为促进工业废渣资源化循环利用,制备工业废渣复合再生胶凝材料(RC)及相应泡沫轻质土。利用松香树脂类、蛋白类两种发泡剂和表面活性剂经高速剪切混溶制备复合类发泡剂,通过不同发泡剂种类、搅拌转速和搅拌时间下的RC泡沫土流动度、湿密度和抗压强度优选最佳工艺,不同湿密度和龄期下抗压强度对比RC泡沫土和水泥泡沫土力学性能,干缩和冻融循环试验对比RC泡沫土和水泥泡沫土耐久性,借助XRD分析RC泡沫土成分。结果表明,复合类发泡剂融合了松香树脂类发泡剂稳定性好和蛋白类发泡剂发泡倍数高的优势,RC泡沫土制备过程最佳搅拌转速为200 r/min,搅拌时间为2 min。RC和水泥两种泡沫土流动度均满足规范要求,初期抗压强度相当;随着龄期增加,RC泡沫土强度增长幅度高于水泥泡沫土,28 d和56 d龄期时RC泡沫土强度为水泥泡沫土强度的1.21倍和1.35倍。相同条件下RC泡沫土抗干缩和抗冻融性能优于水泥泡沫土。RC水化产物中增加了钙矾石,且水化硅酸钙含量高于水泥水化产物。

关键词: 道路工程, 工业废渣, 复合胶凝材料, 泡沫轻质土, 泡沫土, 流动度, 抗压强度, 耐久性

Abstract: In order to promote the resource recycling of industrial waste residues, the industrial waste residues composite cementitious material (RC) and the corresponding foamed lightweight soil was prepared. The composite foaming agent was prepared by mixing rosin resin and protein foaming agents and surfactants by high-speed shear. The optimum process was optimized based on the fluidity, wet density and compressive strength of RC foamed soil with different foaming agents, stirring speed and stirring time. The mechanical properties of RC foamed soil and cement foamed soil were compared based on compressive strength at different wet densities and ages. The durability of RC foamed soil and cement foamed soil was compared based on dry shrinkage test and freeze-thaw cycle test. The composition of RC foamed soil was analyzed by XRD. The results show that the composite foaming agent combines the advantages of good stability of rosin resin foaming agent and high foaming multiple of protein foaming agent. The optimum stirring speed is 200 r/min and the stirring time is 2 min for the preparation of RC foamed soil. The fluidity of the two kinds of foamed soil of RC and cement meet the requirements of the specification, and the initial compressive strength is equivalent.With the increase of age, the growth of RC foamed soil strength is higher than that of cement foamed soil. At 28 d and 56 d, the strength of RC foamed soil is 1.21 times and 1.35 times of the corresponding strength of cement foamed soil respectively.The dry shrinkage and freeze-thaw resistance of RC foamed soil are better than those of cement foamed soil in the same condition. Compared with cement hydration products, RC hydration products contain newly added ettringite and higher content of hydrated calcium silicate.

Key words: road engineering, industrial waste residue, composite cementitious material, foamed lightweight soil, foamed soil, fluidity, compressive strength, durability

中图分类号:

U414

赵正峰, 王笑风, 王国栋, 褚付克, 闫毅军, 王晔晔, 殷卫永. 工业废渣复合胶凝材料泡沫轻质土制备及性能[J]. 硅酸盐通报, 2022, 41(6): 2108-2116.

ZHAO Zhengfeng, WANG Xiaofeng, WANG Guodong, CHU Fuke, YAN Yijun, WANG Yeye, YIN Weiyong. Preparation and Properties of Industrial Waste Residue Composite Cementitious Foamed Lightweight Soil[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2022, 41(6): 2108-2116.

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工业废渣复合胶凝材料泡沫轻质土制备及性能

Preparation and Properties of Industrial Waste Residue Composite Cementitious Foamed Lightweight Soil

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