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复合形状相变材料再生骨料路面砖性能的试验评估

Experimental Evaluation of the Properties of Recycled Aggregate Pavement Brick with a Composite Shaped Phase Change Material.

作者信息

Ru Chaojie, Li Guoxin, Guo Fanxing, Sun Xuedi, Yu Deliang, Chen Zheng

机构信息

College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.

出版信息

Materials (Basel). 2022 Aug 13;15(16):5565. doi: 10.3390/ma15165565.

DOI:10.3390/ma15165565
PMID:36013701
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9414107/
Abstract

Brick waste makes up a significant part of the solid waste that is generated from building demolition globally. The disposal of this waste consumes land, causes environmental pollution, and is a waste of resources. In order to use this construction waste and increase its functionality, two types of stable-shape PEG-400/SiO composite shaped PCM and Tet/SiO composite shaped PCM were studied and added to recycled aggregate pavement bricks, and two new types of composite shaped PCM recycled aggregate pavement bricks were created. SEM, DSC, TGA, and other test methods found the two PCMs to be successfully adsorbed by SiO, and the setting effect of PEG-400/SiO was found to be better than that of Tet/SiO. The physicochemical properties of both composite shaped PCMs remained stable within the TGA test temperature range. The prepared PCM was added to the recycled aggregate pavement brick. A comprehensive analysis of the properties of the composite shaped PCM recycled orthopedic pavement brick found the compressive strength and flexural strength of Tet/SiO PCM recycled aggregate pavement brick to be significantly higher than those of PEG-400/SiO PCM recycled aggregate pavement brick. With a recycled aggregate content of 60% and a compound shaped PCM content of 5%, the 28-day strength of the recycled aggregate pavement brick was found to be higher than that of the recycled aggregate pavement brick with a recycled aggregate content of 70% and a compound shaped PCM content of 10%. This study provides reference for the optimization and upgrading of the thermal storage performance of composite shaped PCM in practical applications, and is of great significance for promoting thermal energy storage development and expanding its application range.

摘要

砖废料占全球建筑拆除产生的固体废物的很大一部分。这种废料的处理占用土地、造成环境污染，并且是资源的浪费。为了利用这种建筑垃圾并增加其功能性，研究了两种稳定形状的聚乙二醇400/二氧化硅复合形状相变材料和四丁基溴化铵/二氧化硅复合形状相变材料，并将其添加到再生骨料路面砖中，从而制备出两种新型的复合形状相变材料再生骨料路面砖。扫描电子显微镜、差示扫描量热法、热重分析法等测试方法表明，两种相变材料均成功被二氧化硅吸附，且聚乙二醇400/二氧化硅的凝结效果优于四丁基溴化铵/二氧化硅。在热重分析测试温度范围内，两种复合形状相变材料的物理化学性质均保持稳定。将制备的相变材料添加到再生骨料路面砖中。对复合形状相变材料再生骨科路面砖的性能进行综合分析发现，四丁基溴化铵/二氧化硅相变材料再生骨料路面砖的抗压强度和抗折强度显著高于聚乙二醇400/二氧化硅相变材料再生骨料路面砖。当再生骨料含量为60%且复合形状相变材料含量为5%时，再生骨料路面砖的28天强度高于再生骨料含量为70%且复合形状相变材料含量为10%的再生骨料路面砖。该研究为复合形状相变材料在实际应用中的蓄热性能优化升级提供了参考，对促进蓄热技术发展和扩大其应用范围具有重要意义。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/3b727e8daa00/materials-15-05565-g012.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/b34eb6e2669e/materials-15-05565-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/7186a9b23d84/materials-15-05565-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/7d42a3bcff60/materials-15-05565-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/a1d33736139d/materials-15-05565-g009.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/9b7a90dbb199/materials-15-05565-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/3b727e8daa00/materials-15-05565-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/05b6fdbedffe/materials-15-05565-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/5c7034ecde2c/materials-15-05565-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/815f4ec8edd3/materials-15-05565-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/f704b831bc17/materials-15-05565-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/8d9be23d7a44/materials-15-05565-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/b34eb6e2669e/materials-15-05565-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/7186a9b23d84/materials-15-05565-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/7d42a3bcff60/materials-15-05565-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/a1d33736139d/materials-15-05565-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/203c4ca376a7/materials-15-05565-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/9b7a90dbb199/materials-15-05565-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c26e/9414107/3b727e8daa00/materials-15-05565-g012.jpg

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