固废复合材料灌浆料复合试验设计、力学性能及微观结构分析

硅酸盐通报 ›› 2023, Vol. 42 ›› Issue (11): 4006-4016.

所属专题：资源综合利用

固废复合材料灌浆料复合试验设计、力学性能及微观结构分析

张会芳^1,2, 龚琳洋¹, 任娅娜³, 黄建国⁴, 寇斌⁵, 颜政伟¹, 张占超⁵, 刘伟杰³, 魏文博⁵

1.河北建筑工程学院土木工程学院,张家口 075051;
2.河北省装配式建筑与地下工程技术创新中心,张家口 075051;
3.张家口建设发展集团有限公司,张家口 075000;
4.张家口建设投资集团有限公司,张家口 075000;
5.张家口市住房和城乡建设局,张家口 075001

收稿日期:2023-07-05 修订日期:2023-08-13 出版日期:2023-11-15 发布日期:2023-11-22
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:
河北省高等学校科学技术研究项目(ZC2023136);河北省建设科技研究指导性计划项目(2023—2093);河北建筑工程学院硕士研究生创新基金项目(XY2023062);2023年度河北省高等学校科学研究项目(BJK2023094)

Composite Experiments Design, Mechanical Properties and Microstructure Analysis of Solid Waste Composite Grouting Material

ZHANG Huifang^1,2, GONG Linyang¹, REN Yana³, HUANG Jianguo⁴, KOU Bin⁵, YAN Zhengwei¹, ZHANG Zhanchao⁵, LIU Weijie³, WEI Wenbo⁵

1. School of Civil Engineering, Hebei University of Architecture, Zhangjiakou 075051, China;
2. Prefabricated building and Underground Engineering Technology Innovation Center of Hebei Province, Zhangjiakou 075051, China;
3. Zhangjiakou Construction Development Group Co., Ltd., Zhangjiakou 075000, China;
4. Zhangjiakou Construction Investment Group Co., Ltd., Zhangjiakou 050081, China;
5. Zhangjiakou Housing and Urban Rural Development Bureau, Zhangjiakou 075001, China

Received:2023-07-05 Revised:2023-08-13 Online:2023-11-15 Published:2023-11-22

摘要/Abstract

摘要： 为了提高粉煤灰、矿渣、铁尾矿砂和机制砂等固废的利用率,制备早强、微膨胀的高强灌浆料,本文通过复配普通硅酸盐水泥和硫铝酸盐水泥,以及设计石英砂-铁尾矿砂-机制砂的三元复合体系和正交试验的方式分析了在固废复合材料共同作用下灌浆料的力学性能和微观结构。试验结果表明,普通硅酸盐水泥和硫铝酸盐水泥最优质量比为4 ∶1,石英砂、铁尾矿砂、石灰石机制砂的最优质量配合比为7 ∶1 ∶2,正交试验4种因素对灌浆料试件强度影响程度由大到小为水胶比、粉煤灰掺量、胶砂比和矿渣掺量,通过极差分析得到最佳因素水平组合为水胶比为0.33、胶砂比为1.0 ∶1.2、粉煤灰掺量和矿渣掺量分别为6%和10%(质量分数)。通过XRD、SEM分析发现,C-S-H凝胶的密实程度会影响灌浆料试件的强度,水胶比对钙矾石物相有影响,钙矾石和六水铝酸三钙能提高试件的早期强度。

关键词: 水泥基灌浆料, 三元复合砂, 正交试验, 复掺水泥, 固体废弃物, 水化产物

Abstract: In order to improve the utilization rate of solid wastes such as fly ash, slag, iron tailing sand and manufactured sand and prepare early strength and slightly expansive high-strength grouting material, the mechanical properties and microstructure of grouting materials were analyzed under the joint action of solid waste composite materials by mixing ordinary Portland cement and sulphoaluminate cement, designing the ternary composite system of quartz sand, iron tailing sand and manufactured and orthogonal test. The test results show that the optimal mass mix ratio of ordinary Portland cement and sulphoaluminate cement is 4 ∶1, the optimal mass mix ratio of quartz sand, iron tailings sand, limestone manufactured sand is 7 ∶1 ∶2, and the influence degree of four factors on strength of grouting materials from large to small in the orthogonal test is water binder ratio, fly ash content, binder sand ratio and slag content. Through range analysis, the optimal factor level combination is water binder ratio is 0.33, binder sand ratio is 1.0 ∶1.2, and the fly ash content and slag content are 6% and 10% (mass fraction), respectively. Through the analysis of XRD and SEM, it is found that the density of C-S-H gel will affect the strength of grouting material. The water binder ratio has an effect on the phase of ettringite, and ettringite and tricalcium aluminate hexahydrate can improve the early strength of specimens.

Key words: cement-based grouting material, ternary composite sand, orthogonal experiment, mixed cement, solid waste, hydration product

中图分类号:

TU528.1

张会芳, 龚琳洋, 任娅娜, 黄建国, 寇斌, 颜政伟, 张占超, 刘伟杰, 魏文博. 固废复合材料灌浆料复合试验设计、力学性能及微观结构分析[J]. 硅酸盐通报, 2023, 42(11): 4006-4016.

ZHANG Huifang, GONG Linyang, REN Yana, HUANG Jianguo, KOU Bin, YAN Zhengwei, ZHANG Zhanchao, LIU Weijie, WEI Wenbo. Composite Experiments Design, Mechanical Properties and Microstructure Analysis of Solid Waste Composite Grouting Material[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(11): 4006-4016.

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固废复合材料灌浆料复合试验设计、力学性能及微观结构分析

Composite Experiments Design, Mechanical Properties and Microstructure Analysis of Solid Waste Composite Grouting Material

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