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利用二次原料中可持续的低密度玻璃集料开发轻质砂浆。

Development of Lightweight Mortars Using Sustainable Low-Density Glass Aggregates from Secondary Raw Materials.

作者信息

Romero Maximina, Padilla Isabel, García Calvo José Luis, Carballosa Pedro, Pedrosa Filipe, López-Delgado Aurora

机构信息

Eduardo Torroja Institute for Construction Sciences, IETcc, CSIC, 28033 Madrid, Spain.

出版信息

Materials (Basel). 2023 Sep 19;16(18):6281. doi: 10.3390/ma16186281.

DOI:10.3390/ma16186281
PMID:37763558
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10532437/
Abstract

In this study, different lightweight expanded glass aggregates (LEGAs) were produced from glass cullet and various carbonated wastes, through a thermal impact process. The effects of LEGA microstructure and morphology on both the adherence to the cement paste and the mechanical properties of mortars after 28 days of curing were studied. The properties of lightweight mortars made of either LEGAs or expanded clay aggregates were compared. The results demonstrated the feasibility of using LEGAs to produce glass lightweight aggregate mortar, with flexural and compressive strength values ranging from 5.5 to 8.2 MPa and from 28.1 to 47.6 MPa, respectively. The differences in mechanical properties were explained according to the microstructures of the fracture surfaces. Thus, arlite-type ceramic aggregates presented surface porosities that allowed mortar intrusion and the formation of an interconnected interface; although the surfaces of the vitreous aggregates were free from porosity due to their vitreous nature, the mortars obtained from different wastes presented compressive and flexural strengths in the range of lightweight mortars.

摘要

在本研究中，通过热冲击工艺，利用碎玻璃和各种碳酸化废料制备了不同的轻质膨胀玻璃集料（LEGA）。研究了LEGA微观结构和形态对其与水泥浆体粘结性以及养护28天后砂浆力学性能的影响。比较了由LEGA或膨胀粘土集料制成的轻质砂浆的性能。结果表明，使用LEGA生产玻璃轻质集料砂浆是可行的，其抗折强度和抗压强度值分别为5.5至8.2MPa和28.1至47.6MPa。根据断口微观结构解释了力学性能的差异。因此，珍珠岩型陶瓷集料呈现出表面孔隙，这使得砂浆能够侵入并形成相互连通的界面；尽管玻璃质集料由于其玻璃质性质表面无孔隙，但由不同废料制备的砂浆具有轻质砂浆范围内的抗压强度和抗折强度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/b69bde384931/materials-16-06281-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/1411dfa5367f/materials-16-06281-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/be20a35fb467/materials-16-06281-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/01e7a522d523/materials-16-06281-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/596c124665f1/materials-16-06281-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/9d5a4194281a/materials-16-06281-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/e98127238444/materials-16-06281-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/b69bde384931/materials-16-06281-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/1411dfa5367f/materials-16-06281-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/be20a35fb467/materials-16-06281-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/01e7a522d523/materials-16-06281-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/596c124665f1/materials-16-06281-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/9d5a4194281a/materials-16-06281-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/e98127238444/materials-16-06281-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a0be/10532437/b69bde384931/materials-16-06281-g007.jpg

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本文引用的文献

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Glass Lightweight Aggregates from Glass Cullet and Mining and Food Industry Carbonate Waste.来自碎玻璃以及采矿和食品工业碳酸盐废料的玻璃轻质集料。
Materials (Basel). 2022 Feb 6;15(3):1223. doi: 10.3390/ma15031223.
2
Analysis of the Possibility of Using Slags from the Thermal Treatment of Municipal Waste as Potential Component of Cement-Case Study.将城市垃圾热处理产生的炉渣用作水泥潜在成分的可能性分析——案例研究
Materials (Basel). 2021 Oct 29;14(21):6491. doi: 10.3390/ma14216491.
3
FT-IR Study, Thermal Analysis, and Evaluation of the Antibacterial Activity of a MK-Geopolymer Mortar Using Glass Waste as Fine Aggregate.
利用玻璃废料作为细集料的MK地聚合物砂浆的傅里叶变换红外光谱研究、热分析及抗菌活性评估
Polymers (Basel). 2021 Aug 31;13(17):2970. doi: 10.3390/polym13172970.
4
The Durability of Mortar Containing Alkali Activated Fly Ash-Based Lightweight Aggregate.含碱激发粉煤灰基轻集料砂浆的耐久性
Materials (Basel). 2021 Jul 4;14(13):3741. doi: 10.3390/ma14133741.
5
Biochar admixtured lightweight, porous and tougher cement mortars: Mechanical, durability and micro computed tomography analysis.生物炭增韧轻质多孔水泥基复合材料：力学性能、耐久性与微 CT 分析。
Sci Total Environ. 2021 Jan 1;750:142327. doi: 10.1016/j.scitotenv.2020.142327. Epub 2020 Sep 13.