Feasibility of Stabilized Zn and Pb Contaminated Soils as Roadway Subgrade Materials

doi:10.1155/2020/1025056

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	Feasibility of Stabilized Zn and Pb Contaminated Soils as Roadway Subgrade Materials
	Wei, Mingli 1,2,3; Ni, Hao 1; Zhou, Shiji 1; Li, Yuan 2,3
	2020-12-16
发表期刊	ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
ISSN	1687-8434
卷号	2020 期号:-页码:11
摘要	The authors have developed a new binder, KMP, which is made from oxalic acid-activated phosphate rock, monopotassium phosphate (KH2PO4), and reactive magnesia (MgO). This study explores the acid neutralization capacity, strength characteristics, water-soaking durability, resilient modulus, and pore size distribution of KMP stabilized soils with individual Zn, Pb, or coexisting Zn and Pb contaminants. For comparison purpose, Portland cement (PC) is also tested. The results show that KMP stabilized soils have a higher acid buffering capacity than PC stabilized soils, regardless of the soil contamination conditions. The water stability coefficient and resilient modulus of the KMP stabilized soils are found to be higher than PC stabilized soils. The reasons for the differences in these properties between KMP and PC stabilized soils are interpreted based on the stability and dissolubility of the main hydration products of the KMP and PC stabilized soils, the soil pore distribution, and concentration of Mg or Ca leached from the KMP and PC stabilized soils obtained from the acid neutralization capacity tests. Overall, this study demonstrates that the KMP is effective in stabilizing soils that are contaminated with Zn or Pb alone and mixed Zn and Pb contaminants, and the KMP stabilized soils are better suited as roadway subgrade material.
DOI	10.1155/2020/1025056
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41472258] ; National Natural Science Foundation of China[41877248] ; National Natural Science Foundation Youth Science Foundation Project of China[41702349] ; Natural Science Foundation of Jiangsu Province[BE2017715] ; China Postdoctoral Science Foundation[2018M642143]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000603539800003
出版者	HINDAWI LTD
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.198/handle/2S6PX9GI/25441
专题	中科院武汉岩土力学所
作者单位	1.Southeast Univ, Inst Geotech Engn, Jiangsu Key Lab Urban Underground Engn & Environm, Nanjing 210096, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Jiangsu Inst Zoneco Soil Co Ltd, Yixing 214200, Peoples R China
第一作者单位	中科院武汉岩土力学所
推荐引用方式 GB/T 7714	Wei, Mingli,Ni, Hao,Zhou, Shiji,et al. Feasibility of Stabilized Zn and Pb Contaminated Soils as Roadway Subgrade Materials[J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2020,2020(-):11.
APA	Wei, Mingli,Ni, Hao,Zhou, Shiji,&Li, Yuan.(2020).Feasibility of Stabilized Zn and Pb Contaminated Soils as Roadway Subgrade Materials.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2020(-),11.
MLA	Wei, Mingli,et al."Feasibility of Stabilized Zn and Pb Contaminated Soils as Roadway Subgrade Materials".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING 2020.-(2020):11.

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