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

doi:10.1016/j.conbuildmat.2017.05.209

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	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
刊名	CONSTRUCTION AND BUILDING MATERIALS
	2017-09-30
卷号	150 页码:66-76
关键词	Paste Sulfate Attack Sulfate Resistance Grounded Iron Ore Tailings Baco3
DOI	10.1016/j.conbuildmat.2017.05.209
文献子类	Article
英文摘要	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.
语种	英语
WOS记录号	WOS:000406989500007
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/143107]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
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
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.