Investigation on Thermal Insulation and Mechanical Strength of Lightweight Aggregate Concrete and Porous Mortar in Cold Regions

doi:10.32604/jrm.2022.020265

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	Investigation on Thermal Insulation and Mechanical Strength of Lightweight Aggregate Concrete and Porous Mortar in Cold Regions
	Wu, Jianan 5; Xue, Ke 4; Ding, Zhaowei 3; Lang, Lei 3; Gu, Kang 3; Li, Xiaolin 1; Zhang, Mingli 2; Li, Desheng 3,6
刊名	Journal of Renewable Materials
	2022
卷号	10 期号:12 页码:3167-3183
关键词	Cements Concrete aggregates Frost resistance Light weight concrete Mortar Strength of materials Textures Thawing Thermal conductivity Thermal insulation Aggregate concrete Cement based composites Cold regions Concrete/mortar Freeze-thaw cycles Insulating capacity Lightweight aggregates Mechanical Mechanical strength Thermal-insulating
ISSN号	2164-6325
DOI	10.32604/jrm.2022.020265
英文摘要	Thermal insulation is an important indicator to evaluate the construction material in cold region engineering. As we know, adding the industrial waste as lightweight aggregate or creating the pore inside the cement-based composite could make the texture loose, and the thermal insulating capacity of the material would be improved with this texture. Using these methods, the industrial by-product and engineering waste could be cycled in an efficient way. Moreover, after service the fragmented cement composites paste could be used as aggregate in the thermal insulating concrete again. While the porous texture is not favorable for the mechanical strength and long-term durability in a cold environment. To balance the above three requirements from two opposite directions, different processing methods were applied to create the thermal insulation concrete/mortar. Firstly, the organic/inorganic lightweight aggregate, including the Expanded Polystyrene (EPS), Expanded Perlite (EP), and Ceramsite (CRMST) particles, were applied to create the Lightweight Aggregate Concrete (LWAC). As the comparative tests, the expanded Superabsorbent Polymer (SAP) hydrogel and Air-Entraining Agent (AEA) were also introduced to create the porous mortar. The above concrete/mortar was tested in the normal state and under the Freeze-Thaw cycle to explore the engineering performance in cold regions. During the experimenting process, the thermal insulation, mechanical strength, and frost resistance of these cement-based composites were investigated, and an optimal thermal insulation concrete/mortar was determined. © 2022, Tech Science Press. All rights reserved.
语种	英语
出版者	Tech Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159396]
专题	土木工程学院
作者单位	1.College of Civil Engineering and Architecture, Jiaxing University, Jiaxing, China; 2.Department of Civil Engineering, Lanzhou University of Technology, Lanzhou, China; 3.State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai, China; 4.College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Ya’an, China; 5.Ningbo City College of Vocational Technology, Ningbo, China; 6.Department of Civil Engineering, College of Science, Nanjing University of Science and Technology, Nanjing, China
推荐引用方式 GB/T 7714	Wu, Jianan,Xue, Ke,Ding, Zhaowei,et al. Investigation on Thermal Insulation and Mechanical Strength of Lightweight Aggregate Concrete and Porous Mortar in Cold Regions[J]. Journal of Renewable Materials,2022,10(12):3167-3183.
APA	Wu, Jianan.,Xue, Ke.,Ding, Zhaowei.,Lang, Lei.,Gu, Kang.,...&Li, Desheng.(2022).Investigation on Thermal Insulation and Mechanical Strength of Lightweight Aggregate Concrete and Porous Mortar in Cold Regions.Journal of Renewable Materials,10(12),3167-3183.
MLA	Wu, Jianan,et al."Investigation on Thermal Insulation and Mechanical Strength of Lightweight Aggregate Concrete and Porous Mortar in Cold Regions".Journal of Renewable Materials 10.12(2022):3167-3183.