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

doi:10.32604/jrm.2022.020265

IR > 土木工程学院

	Investigation on Thermal Insulation and Mechanical Strength of Lightweight Aggregate Concrete and Porous Mortar in Cold Regions
	Wu, Jianan 1; Xue, Ke 2; Ding, Zhaowei 3; Lang, Lei 3; Gu, Kang 3; Li, Xiaolin 4; Zhang, Mingli5 ; Li, Desheng 3,6
	2022
发表期刊	Journal of Renewable Materials
ISSN	2164-6325
卷号	10 期号:12 页码:3167-3183
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.
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
DOI	10.32604/jrm.2022.020265
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Polymer Science
WOS类目	Green & Sustainable Science & Technology ; Materials Science, Composites ; Polymer Science
WOS记录号	WOS:000758492600001
出版者	Tech Science Press
EI入藏号	20222912377838
EI主题词	Freezing
EI分类号	412 Concrete - 412.1 Cement - 413.2 Heat Insulating Materials - 414.3 Mortar (Before 1993, use code 412) - 641.1 Thermodynamics - 951 Materials Science
来源库	WOS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/159396
专题	土木工程学院
通讯作者	Li, Desheng
作者单位	1.Ningbo City Coll Vocat Technol, Ningbo, Peoples R China; 2.Sichuan Agr Univ, Coll Water Conservancy & Hydropower Engn, Yaan, Peoples R China; 3.Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai, Peoples R China; 4.Jiaxing Univ, Coll Civil Engn & Architecture, Jiaxing, Peoples R China; 5.Lanzhou Univ Technol, Dept Civil Engn, Lanzhou, Peoples R China; 6.Nanjing Univ Sci & Technol, Coll Sci, Dept Civil Engn, Nanjing, Peoples R China
通讯作者单位	理学院
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.