酸激发剂对固废材料及其灌浆料性能的影响

doi:10.16552/j.cnki.issn1001-1625.2024.1209

硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (5): 1788-1802.DOI: 10.16552/j.cnki.issn1001-1625.2024.1209

酸激发剂对固废材料及其灌浆料性能的影响

张会芳^1,2, 陈洁¹, 王磊¹, 李晓辰³, 李金珠⁴, 刘凯宏⁴, 曹慧⁴, 任泽江⁵, 刘哲颖⁶

1.河北建筑工程学院土木工程学院,张家口 075000;
2.河北省装配式建筑与地下工程技术创新中心,张家口 075000;
3.张家口市益源建筑垃圾处置和综合利用有限公司,张家口 075000;
4.张家口市住房和城乡建设局,张家口 075000;
5.张家口建投新能源有限公司,张家口 075000;
6.张家口市桥西区市政工程和地方道路服务中心,张家口 075000

收稿日期:2024-10-14 修订日期:2024-12-27 发布日期:2025-05-20
作者简介:张会芳(1979—),女,副教授。主要从事材料科学、绿色建材与节能建筑新体系、工农业废弃物综合利用技术方面的研究。E-mail:42228449@qq.com
基金资助:
河北省教育厅科学研究项目(CXY2024002);张家口市重点研发计划项目(2421020D);河北省无机非金属材料实验室开放课题基金资助项目(HLINM202201)

Influences of Acid Activators on Properties of Solid Waste Materials and Grouting Materials

ZHANG Huifang^1,2, CHEN Jie¹, WANG Lei¹, LI Xiaochen³, LI Jinzhu⁴, LIU Kaihong⁴, CAO Hui⁴, REN Zejiang⁵, LIU Zheying⁶

1. School of Civil Engineering, Hebei Institute of Architecture Civil Engineering, Zhangjiakou 075000, China;
2. Prefabricated Building and Underground Engineering Technology Innovation Center of Hebei Province, Zhangjiakou 075000, China;
3. Zhangjiakou Yiyuan Construction Waste Disposal and Comprehensive Utilization Co., Ltd., Zhangjiakou 075000, China;
4. Zhangjiakou Housing and Urban Rural Development Bureau, Zhangjiakou 075000, China;
5. Zhangjiakou Construction Investment New Energy Co., Ltd., Zhangjiakou 075000, China;
6. Zhangjiakou City Qiaoxi District Municipal Engineering and Local Road Service Center, Zhangjiakou 075000, China

Received:2024-10-14 Revised:2024-12-27 Online:2025-05-20

摘要/Abstract

摘要： 为了提高固体废弃物的利用率,分别选用盐酸、醋酸和草酸作为酸激发剂对粉煤灰和矿渣微粉进行浸泡激发并制备灌浆料,通过测定灌浆料的力学性能确定酸激发剂的最优激发浓度。将试件分别置于标准养护环境、3%(质量分数)NaCl溶液、3%(质量分数)Na₂SO₄溶液、3%(质量分数)NaCl和Na₂SO₄混合溶液中养护28 d,通过测定试件的抗折强度计算抗蚀系数,结合试件的微观结构综合分析酸激发固废材料后制备的灌浆料在不同腐蚀环境中的耐腐蚀性。结果表明:经浓度为2.0%(质量分数)的盐酸溶液浸泡激发后,制备的灌浆料试件抗压强度最高,可达64.5 MPa;酸激发粉煤灰和矿渣后制备的灌浆料中石英和钙矾石的含量增加,酸激发能在一定程度上促进水化反应;经盐酸激发制备的灌浆料试件抵抗Cl^-侵蚀的效果最差,能一定程度上抵抗SO^2-₄侵蚀。

关键词: 酸激发, 固废材料, 灌浆料, 力学性能, 微观机理, 耐久性

Abstract: In order to improve the utilization rate of solid waste, hydrochloric acid, acetic acid and oxalic acid were respectively selected as acid activators to impregnate and excite fly ash and slag micro-powder, subsequently prepareing grouting materials. The optimal excitation concentration of acid activator was determined by measuring the mechanical properties of grouting materials. The specimens were placed in standard curing environment, 3% (mass fraction) NaCl solution, 3% (mass fraction) Na₂SO₄ solution, 3% (mass fraction) NaCl and Na₂SO₄ mixed solution for curing for 28 d, respectively. The corrosion resistance coefficient was calculated by measuring the flexural strength of the specimen, and the corrosion resistance of the grouting material prepared after acid excited solid waste in different corrosion environments was analyzed comprehensively combined with the microstructure of the specimen. The results show that after the grouting material specimens prepared by soaking and exciting fly ash and slag in a 2.0% (mass fraction) hydrochloric acid solution, the compressive strength is the highest, which can reach 64.5 MPa. The contents of quartz and ettringite in the grouting material prepared after acid excitation of fly ash and slag increase, and acid excitation can promote the hydration reaction to a certain extent. The grouting material specimens prepared by hydrochloric acid excitation have the poorest resistance to the erosion of Cl^- and can resist the erosion of SO^2-₄ to a certain extent.

Key words: acid excitation, solid waste material, grounting naterial, mechanical property, micro-mechanism, durability

中图分类号:

TU525

张会芳, 陈洁, 王磊, 李晓辰, 李金珠, 刘凯宏, 曹慧, 任泽江, 刘哲颖. 酸激发剂对固废材料及其灌浆料性能的影响[J]. 硅酸盐通报, 2025, 44(5): 1788-1802.

ZHANG Huifang, CHEN Jie, WANG Lei, LI Xiaochen, LI Jinzhu, LIU Kaihong, CAO Hui, REN Zejiang, LIU Zheying. Influences of Acid Activators on Properties of Solid Waste Materials and Grouting Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(5): 1788-1802.

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酸激发剂对固废材料及其灌浆料性能的影响

Influences of Acid Activators on Properties of Solid Waste Materials and Grouting Materials

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