Use of grounded iron ore tailings (GIOTs) and BaCO3 to improve sulfate resistance of pastes

doi:10.1016/j.conbuildmat.2017.05.209

	Use of grounded iron ore tailings (GIOTs) and BaCO3 to improve sulfate resistance of pastes
	Xiong, Chuansheng 1,2; Li, Weihua 1; Jiang, Linhua 2; Wang, Wei 1; Guo, Qingxiang 2
	2017-09-30
发表期刊	CONSTRUCTION AND BUILDING MATERIALS
卷号	150 页码:66-76
文章类型	Article
摘要	Novel methods are explored to improve sulfate resistance for cement pastes by using grounded iron ore tailings (GIOTs), BaCO3 and both of them. Experiments were conducted on a plain cement paste and six blended cement pastes with different contents of GIOTs and BaCO3. All the pastes were exposed to two kinds of external sulfate attacks (a 5 wt.% Na2SO4 solution and a 5 wt.% MgSO4 solution). The effect of additions on the sulfate resistance of pastes was assessed by compressive strength, expansion and Vickers hardness. Mercury Intrusion Porosimetry (MIP), X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive Spectrometer (EDS) were performed to clarify mechanisms of BaCO3 and GIOTs on sulfate resistance of pastes. As the results shown, both BaCO3 and GOITs can improve the capacity of pastes against to external sulfate attack. Pastes with interaction of BaCO3 and GIOTs present the highest sulfate resistance level under the both sulfate attacks. (c) 2017 Elsevier Ltd. All rights reserved.
关键词	Paste Sulfate Attack Sulfate Resistance Grounded Iron Ore Tailings Baco3
DOI	10.1016/j.conbuildmat.2017.05.209
收录类别	SCI
语种	英语
WOS记录号	WOS:000406989500007
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/143107
专题	海洋环境腐蚀与生物污损重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Hohai Univ, Coll Mech & Mat, 1 Xikang Rd, Nanjing 210098, Jiangsu, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Xiong, Chuansheng,Li, Weihua,Jiang, Linhua,et al. Use of grounded iron ore tailings (GIOTs) and BaCO3 to improve sulfate resistance of pastes[J]. CONSTRUCTION AND BUILDING MATERIALS,2017,150:66-76.
APA	Xiong, Chuansheng,Li, Weihua,Jiang, Linhua,Wang, Wei,&Guo, Qingxiang.(2017).Use of grounded iron ore tailings (GIOTs) and BaCO3 to improve sulfate resistance of pastes.CONSTRUCTION AND BUILDING MATERIALS,150,66-76.
MLA	Xiong, Chuansheng,et al."Use of grounded iron ore tailings (GIOTs) and BaCO3 to improve sulfate resistance of pastes".CONSTRUCTION AND BUILDING MATERIALS 150(2017):66-76.

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