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再生混凝土及其他建筑与拆除废弃物在砌筑砂浆中的二次利用：材料性能、性能表现及环境因素的全面探讨

Second Life for Recycled Concrete and Other Construction and Demolition Waste in Mortars for Masonry: Full Scope of Material Properties, Performance, and Environmental Aspects.

作者信息

Grigorjev Vadim, Azenha Miguel, De Belie Nele

机构信息

Magnel-Vandepitte Laboratory, Department of Structural Engineering and Building Materials, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde 60, 9052 Gent, Belgium.

ISISE, Department of Civil Engineering, University of Minho, Building 02, 4800-058 Guimarães, Portugal.

出版信息

Materials (Basel). 2024 Oct 19;17(20):5118. doi: 10.3390/ma17205118.

DOI:10.3390/ma17205118
PMID:39459823
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11509183/
Abstract

This review presents the scope of current efforts to utilize recycled construction and demolition waste in mortars for masonry. More than 100 articles are divided into groups pertaining to the type of mortar, different binder systems, the type of construction and demolition waste (CDW), and its utilization specifics. Cement-based mortars dominate this research domain, whereas recycled concrete is the main material employed to replace virgin aggregates, followed by recycled masonry and recycled mixed waste aggregates. Such application in cement-based mortars could increase water demand by 20-34% and reduce strength by 11-50%, with recycled concrete aggregates being the most favorable. Natural aggregate substitution is disadvantageous in strong mortars, whereas weaker ones, such as lime-based mortars, could benefit from this incorporation. The extent of this topic also suggests possibilities for different recycled material use cases in mortars for masonry, although the available literature is largely insufficient to infer meaningful trends. Nonetheless, the most relevant knowledge synthesized in this review offers promising and environment-conscious utilization pathways for recycled concrete and other construction and demolition waste, which brings opportunities for further research on their use in mortars for masonry and industrial-scale applications.

摘要

本综述介绍了当前在砌筑砂浆中利用建筑拆除废料的研究范围。100多篇文章根据砂浆类型、不同粘结剂体系、建筑拆除废料（CDW）类型及其利用细节进行了分组。水泥基砂浆主导了这一研究领域，而再生混凝土是用于替代原生骨料的主要材料，其次是再生砖石和再生混合废料骨料。在水泥基砂浆中的这种应用可能会使需水量增加20 - 34%，强度降低11 - 50%，其中再生混凝土骨料最为有利。在高强度砂浆中用天然骨料替代是不利的，而强度较低的砂浆，如石灰基砂浆，则可以从这种掺入中受益。尽管现有文献在很大程度上不足以推断出有意义的趋势，但该主题的研究范围也表明了在砌筑砂浆中使用不同再生材料的可能性。尽管如此，本综述中综合的最相关知识为再生混凝土和其他建筑拆除废料提供了有前景且环保的利用途径，这为进一步研究它们在砌筑砂浆中的应用和工业规模应用带来了机会。

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本文引用的文献

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Environmental and socio-economic effects of construction and demolition waste recycling in the European Union.欧盟建筑与拆除废物回收利用的环境和社会经济影响
Sci Total Environ. 2024 Jan 15;908:168295. doi: 10.1016/j.scitotenv.2023.168295. Epub 2023 Nov 4.
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Physico-Mechanical Performances of Mortars Prepared with Sorted Earthquake Rubble: The Role of CDW Type and Contained Crystalline Phases.用分类后的地震废墟制备的砂浆的物理力学性能：再生粗骨料类型和所含晶相的作用
Materials (Basel). 2023 Apr 3;16(7):2855. doi: 10.3390/ma16072855.
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Recycled Fine Aggregates from Mortar Debris and Red Clay Brick to Fabricate Masonry Mortars: Mechanical Analysis.
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Materials (Basel). 2022 Nov 2;15(21):7707. doi: 10.3390/ma15217707.
4
Performance of Sustainable Mortars Made with Filler from Different Construction By-Products.使用来自不同建筑副产品的填料制成的可持续砂浆的性能
Materials (Basel). 2022 Apr 3;15(7):2636. doi: 10.3390/ma15072636.
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Application of Construction and Demolition Waste in Civil Construction in the Brazilian Amazon-Case Study of the City of Rio Branco.建筑与拆除废物在巴西亚马逊地区民用建筑中的应用——以里奥布兰科市为例
Materials (Basel). 2021 Apr 27;14(9):2247. doi: 10.3390/ma14092247.
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Effect of Pre-Wetting Recycled Mortar Aggregate on the Mechanical Properties of Masonry Mortar.预湿再生砂浆骨料对砌筑砂浆力学性能的影响。
Materials (Basel). 2021 Mar 22;14(6):1547. doi: 10.3390/ma14061547.
7
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