矿化养护碱激发固废胶凝材料性能与环境影响的综合评价

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (3): 977-986.

所属专题：资源综合利用

矿化养护碱激发固废胶凝材料性能与环境影响的综合评价

王一晓¹, 许耀群², 张昂^1,3, 林新昊¹, 杨嫚嫚¹

1.中原科技学院土木建筑学院,郑州 451400;
2.郑州大学水利与交通学院,郑州 450001;
3.武汉大学继续教育学院,武汉 430072

收稿日期:2023-10-18 修订日期:2023-11-30 出版日期:2024-03-15 发布日期:2024-03-27
作者简介:王一晓(1993—),女,讲师。主要从事固废资源化利用与低碳材料的研究。E-mail:wyx2811004@163.com
基金资助:
河南省科技攻关项目(232102230129);国家自然科学基金(52130901);许昌市科技攻关项目(20230213058)

Comprehensive Evaluation of Performance and Environmental Impact of Mineralization Curing Alkali Activated Solid Waste Cementitious Materials

WANG Yixiao¹, XU Yaoqun², ZHANG Ang^1,3, LIN Xinhao¹, YANG Manman¹

1. School of Civil Engineering, Zhongyuan Institute of Science and Technology, Zhengzhou 451400, China;
2. School of Water Conservancy and Transportation, Zhengzhou University, Zhengzhou 450001, China;
3. College of Continuing Education, Wuhan University, Wuhan 430072, China

Received:2023-10-18 Revised:2023-11-30 Online:2024-03-15 Published:2024-03-27

摘要/Abstract

摘要： CO₂矿化养护固废胶凝材料可实现固废的多样化、减量化消纳,同时固定封存CO₂,具有双重减碳效益。为综合考虑材料的力学性能、固碳效果与环境影响,选取抗压强度、固碳率、固碳程度、碳化效率、碳排放和能源消耗为评价指标,设计11组配合比试件进行综合性能的量化分析和评分。结果表明,与标准养护相比,矿化养护碱激发固废胶凝材料的抗压强度和整体固碳效果有显著提升。固废具有优异的减排和降耗优势,但碱激发剂的使用对环境影响较大。当粉煤灰、赤泥和钢渣质量比为7 ∶2 ∶1,水固比、碱胶比和水玻璃模数分别为0.28、0.26、1.2时,矿化养护碱激发固废胶凝材料的综合性能最优。CO₂矿化养护技术与固废资源化利用相结合可释放巨大的固碳潜能,是推动减污、降碳协同增效的重要举措。

关键词: CO₂矿化养护, 固废胶凝材料, 固碳, 碳排放, 能源消耗, 综合评价

Abstract: CO₂ mineralization curing solid waste cementitious materials can achieve diversified and reduced consumption of solid waste, while fixing and storing CO₂, which has dual carbon reduction benefits. To comprehensively consider the mechanical properties, carbon sequestration effect, and environmental impact of materials, this article selected compressive strength, carbon sequestration rate, carbon sequestration degree, carbonization efficiency, carbon emission, and energy consumption as evaluation indicators, and designed 11 sets of mixed proportion specimens for quantitative analysis and evaluation of comprehensive performance. The results show that compared with standard curing, the compressive strength and carbon sequestration effect of mineralization curing alkali activated solid waste cementitious materials have been significantly improved. Solid waste has excellent emission and consumption reduction advantages, but the use of alkali activator has a significant impact on the environment. When the mass ratio of fly ash, red mud, and steel slag is 7 ∶2 ∶1, the water-solid ratio, alkali adhesive ratio, and water glass modulus are 0.28, 0.26, and 1.2, the comprehensive performance of mineralization curing alkali activated solid waste cementitious materials is the best. The combination of CO₂ mineralization curing technology and solid waste utilization can unleash enormous carbon sequestration potential, which is an important measure to promote the synergistic effect of pollution reduction and carbon reduction.

Key words: CO₂ mineralization curing, solid waste cementitious material, carbon sequestration, carbon emission, energy consumption, comprehensive evaluation

中图分类号:

TU528

王一晓, 许耀群, 张昂, 林新昊, 杨嫚嫚. 矿化养护碱激发固废胶凝材料性能与环境影响的综合评价[J]. 硅酸盐通报, 2024, 43(3): 977-986.

WANG Yixiao, XU Yaoqun, ZHANG Ang, LIN Xinhao, YANG Manman. Comprehensive Evaluation of Performance and Environmental Impact of Mineralization Curing Alkali Activated Solid Waste Cementitious Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 977-986.

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矿化养护碱激发固废胶凝材料性能与环境影响的综合评价

Comprehensive Evaluation of Performance and Environmental Impact of Mineralization Curing Alkali Activated Solid Waste Cementitious Materials

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