Effectiveness and microstructure change of alkali-activated materials during accelerated carbonation curing

doi:10.1016/j.conbuildmat.2020.122063

	Effectiveness and microstructure change of alkali-activated materials during accelerated carbonation curing
	Mei, Kaiyuan 3,4,5; Gu, Tao 1,2; Zheng, Youzhi 1,2; Zhang, Liwei 3; Zhao, Feng 4,5; Gong, Peng 4,5; Huang, Sheng 4; Zhang, Chunmei 4,5; Cheng, Xiaowei 4,5
刊名	CONSTRUCTION AND BUILDING MATERIALS
	2021-03-08
卷号	274 页码:10
关键词	Blast furnace slag (BFS) Alkali-active materials Carbonation Microstructure
ISSN号	0950-0618
DOI	10.1016/j.conbuildmat.2020.122063
英文摘要	Alkali-activated materials (AAMs) have two major environmental benefits compared to traditional cement-based materials: reducing greenhouse gas emissions and recycling industrial by-products. To evaluate the possibility of using AAMs for well construction in carbon capture, utilization and storage (CCUS) projects, the carbonation resistance performance of AAMs was investigated under accelerated carbonation conditions. The results showed that the loss ratios of the AAMs compressive strength were 89.75% and 88.20% in the gas and liquid phase carbonation environments during the first 3 days, respectively. The structural damage in the AAMs was mainly caused by the leakage of Ca2+ from the calcium silicate hydrate (C-S-H) phase of the matrix, converting it into crystalline calcium carbonate after CO2 attack. From 7 days of the start of carbonation, the cumulative pore volumes of the AAMs samples increased from 0.97 to 5.02 ml/g and from 0.97 to 4.37 ml/g in the gas and liquid phase carbonation environments, respectively. The presented work indicates that under accelerated carbonation conditions, the rate of destruction of AAMs is too rapid for such material to be used for the construction of CCUS wells. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Key R&D Program of China[2016YFB0303600] ; Scien-tific and Technological Innovation Fund for College Students in the Key Laboratory of Oil and Gas Field Materials in Sichuan Province[X151518KCL460] ; PetroChina Southwest Oil & Gas Field Company[20190302-16] ; Innovative Postdoctoral Research Position in Hubei Province[258560]
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000614164100064
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/25708]
专题	中科院武汉岩土力学所
通讯作者	Zhang, Chunmei; Cheng, Xiaowei
作者单位	1.Natl Energy High Sulfur Exploitat R&D Ctr, Guanghan 618300, Sichuan, Peoples R China 2.PetroChina Southwest Oil & Gas Field Co, Engn Technol Res Inst, Guanghan 618300, Sichuan, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 4.Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Peoples R China 5.Southwest Petr Univ, Sch New Energy & Mat, Chengdu 610500, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Mei, Kaiyuan,Gu, Tao,Zheng, Youzhi,et al. Effectiveness and microstructure change of alkali-activated materials during accelerated carbonation curing[J]. CONSTRUCTION AND BUILDING MATERIALS,2021,274:10.
APA	Mei, Kaiyuan.,Gu, Tao.,Zheng, Youzhi.,Zhang, Liwei.,Zhao, Feng.,...&Cheng, Xiaowei.(2021).Effectiveness and microstructure change of alkali-activated materials during accelerated carbonation curing.CONSTRUCTION AND BUILDING MATERIALS,274,10.
MLA	Mei, Kaiyuan,et al."Effectiveness and microstructure change of alkali-activated materials during accelerated carbonation curing".CONSTRUCTION AND BUILDING MATERIALS 274(2021):10.