再生陶瓷细骨料水泥砂浆的微观结构与输运性能

IF 6.2 2区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Developments in the Built Environment Pub Date : 2025-03-21 DOI:10.1016/j.dibe.2025.100643

Le Li , Ziyi Liu , Wenfeng Liu , Zeyu Wang , Chunsheng Zhou , Qiang Zeng

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引用次数: 0

摘要

回收陶瓷在建筑材料中的有效利用受到越来越多的关注。本研究以景德镇陶瓷制造业产生的生活陶瓷废弃物为研究对象。对陶瓷细骨料（CA）部分替代和完全替代天然砂的砂浆进行了强度（抗压/弯曲试验）、耐久性指标（气体渗透/吸水试验）和微观结构（压汞孔隙率法/扫描电镜技术）试验研究。结果表明：(1)CA掺入在替代量为20%时可提高抗压/抗折强度，进一步替代会导致强度降低；(2) ca改性砂浆具有较高的透气性和吸水性；(3) CA大致缩小了临界孔径，耐久性指标与特征孔径参数呈线性相关；(4)在混凝土施工中合理利用生活陶瓷废弃物，既有利于垃圾治理，又能提高混凝土性能。

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Microstructure and transport properties of cement mortar made with recycled fine ceramic aggregates

Effective utilization of recycled ceramics in building materials has received growing interests. This study focuses on the utilization of household ceramic wastes generated by the ceramic manufacturing industry in Jingdezhen. An experimental study on strengths (compression/bending tests), durability indexes (gas permeation/water absorption tests), and microstructure (mercury intrusion porosimetry/scanning electron microscopy techniques) of mortars using fine ceramic aggregate (CA) as a partial and total substitution of natural sand was carried out. Results indicate that (1) CA incorporation improves the compressive/flexural strengths at 20% substitution and further substitution leads to reduction in the strengths; (2) CA-modified mortars possess a higher ressistance against gas permeation and water absorption; (3) CA roughly narrows the critical pore size, and the durability indexes present linear correlations with characteristic pore parameters; (4) reasonable utilization of household ceramic wastes in concrete construction can contribute to waste management along with enhancing concrete properties.

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来源期刊

Developments in the Built Environment Multiple-

CiteScore

7.40

自引率

1.20%

发文量

审稿时长

22 days

期刊介绍： Developments in the Built Environment (DIBE) is a recently established peer-reviewed gold open access journal, ensuring that all accepted articles are permanently and freely accessible. Focused on civil engineering and the built environment, DIBE publishes original papers and short communications. Encompassing topics such as construction materials and building sustainability, the journal adopts a holistic approach with the aim of benefiting the community.