Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 36 Issue 3
Turn off MathJax
Article Contents
Abstract
References
Related Articles
LIU Zhao-peng, DU Yan-jun, LIU Song-yu, JIANG Ning-jun, ZHU Jing-jing. Strength and microstructural characteristics of cement solidified lead-contaminated kaolin exposed to leaching circumstances[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(3): 547-554. DOI: 10.11779/CJGE201403018
Citation: LIU Zhao-peng, DU Yan-jun, LIU Song-yu, JIANG Ning-jun, ZHU Jing-jing. Strength and microstructural characteristics of cement solidified lead-contaminated kaolin exposed to leaching circumstances[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(3): 547-554. DOI: 10.11779/CJGE201403018
shu

Strength and microstructural characteristics of cement solidified lead-contaminated kaolin exposed to leaching circumstances

  • Institute of Geotechnical Engineering, School of Transportation, Southeast University, Nanjing 210096, China

More Information
  • Received Date: July 04, 2013
  • Published Date: March 19, 2014
    Graphical Abstract
    • Abstract
  • The strength and microstructural characteristics of cement stabilized/solidified lead-contaminated kaolin clay are investigated. The leaching of calcium (Ca) is studied under the targeted leachant pH of 2, 4, and 7 via a series of semi-dynamic leaching tests. The results reveal that the unconfined compressive strength (qu) of the stabilized/solidified soils experiencing the semi-dynamic leaching tests is 1% to 42% lower than that of the soils cured for 39 days under standard conditions (SC). The cumulative leaching fraction of Ca (CFRCa) at the leachant pH of 2 is 2 to 7 times greater than that at the leachant pH of 4 or 7. The difference in qu or CFRCa of the soils experiencing the semi-dynamic leaching tests at the lechant pH of 4 and 7 is marginal. When the cement content increases from 12% to 18%, qu increases by 35% to 98%; whereas CFRCa decreases by 40% to 58%. Furthermore, qu of the stabilized/solidified lead-contaminated soils is 50% to 68% lower, and CFRCa is 29% to 175% higher than that of the stabilized/solidified clean soils. An empirical equation is proposed for predicting the loss of unconfined compressive strength (i.e., ratio of qu obtained after leaching tests to that obtained at curing time of 39 days under standard conditions) using CFRCa. It is shown that the proposed method has high accuracy. The results of X-ray diffraction, scanning electron microscope, and mercury intrusion porosimetry analysis show that the relatively high concentration of Pb has remarkably retarded hydration/pozzolanic reactions in the stabilized/solidified lead-contaminated soils. Therefore, the strength development, leaching of Ca, and microstructural characteristics of the stabilized/solidified lead-contaminated soils differ from those of the stabilized/solidified clean soils in a notable manner.
    • FullText(HTML)
    • References (27)
  • [1]
    HEKAL E E, HEGAZI W S, KISHAR E A, et al. Solidification/stabilization of Ni(II) by various cement pastes[J]. Construction and Building Materials, 2011, 25(1): 109-114.
    [2]
    ALPASLAN B, YUKSELEN M A. Remediation of lead contaminated soils by stabilization/solidification[J]. Water, Air, and Soil Pollution, 2002, 133(1/2/3/4): 253-263.
    [3]
    杜延军, 金 飞, 刘松玉, 等. 重金属工业污染场地固化/稳定处理研究进展[J]. 岩土力学, 2011, 32(1): 116-124. (DU Yan-jun, JIN Fei, LIU Song-yu, et al. Review of stabilization/solidification technique for remediation of heavy metals contaminated lands [J]. Rock and Soil Mechanics, 2011, 32(1): 116-124. (in Chinese))
    [4]
    DU Y J, JIANG N J, SHEN S L, et al. Experimental investigation of influence of acid rain on leaching and hydraulic characteristics of cement-based solidified/stabilized lead contaminated clay[J]. Journal of Hazardous Materials, 2012, 225/226: 195-201.
    [5]
    MOON D H, DERMATAS D. An evaluation of lead leachability from stabilized/solidified soils under modified semi-dynamic leaching conditions[J]. Engineering Geology, 2006, 85(1/2): 67-74.
    [6]
    MOON D H, DERMATAS D, GRUBB D G. Release of arsenic (As) and lead (Pb) from quicklime-sulfate stabilized/solidified soils under diffusion-controlled conditions [J]. Environmental Monitoring and Assessment, 2010, 169(1/2/3/4): 259-265.
    [7]
    MALVIYA R, CHAUDHRY R. Leaching behavior and immobilization of heavy metals in solidified/stabilized products[J]. Journal of Hazardous Materials, 2006, B137(1): 207-217.
    [8]
    SONG F Y, GU L, ZHU N W, et al. Leaching behavior of heavy metals from sewage sludge solidified by cement-based binders[J]. Chemosphere, 2013, 92(4): 344-350.
    [9]
    EPA U S. Solidification/stabilization use at superfund sites[R]. Washington D C: Office of Solid Waste and Emergency Response, Technology Innovation Office, 2000.
    [10]
    陈 蕾, 刘松玉, 杜延军, 等. 水泥固化重金属铅污染土的强度特性研究[J]. 岩土工程学报, 2010, 32(12): 1898-1903. (CHEN Lei, LIU Song-yu, DU Yan-jun, et al. Unconfined compressive strength properties of cement solidified/stabilized lead-contaminated soils[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(12): 1898-1903. (in Chinese))
    [11]
    LEE D, WAITE T D, SWARBRICK G, et al. Comparison of solidification/stabilization effects of calcite between Australian and South Korean cements[J]. Cement and Concrete Research, 2005, 35(11): 2143-2157.
    [12]
    MOULIN I, STONE W E E, SANZ J, et al. Lead and zinc retention during hydration of tri-calcium silicate: a study by sorption isotherms and 29Si nuclear magnetic resonance spectroscopy[J]. Langmuir, 1999, 15(8): 2829-2835.
    [13]
    杜延军, 蒋宁俊, 王 乐, 等. 水泥固化锌污染高岭土强度及微观特性研究[J]. 岩土工程学报, 2012, 34(11): 2114-2120. (DU Yan-jun, JIANG Ning-jun, WANG Le, et al. Strength and microstructure characteristics of cement-based solidified/stabilized zinc-contaminated kaolin[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 2114-2120. (in Chinese))
    [14]
    刘兆鹏, 杜延军, 蒋宁俊, 等. 基于半动态淋滤试验的水泥固化铅污染黏土溶出特性研究[J]. 岩土工程学报, 2013, 35(12): 2212-2218. (LIU Zhao-peng, DU Yan-jun, JIANG Ning-jun, et al. Leaching properties of cement solidified lead-contaminated clay via semi-dynamic leaching testing[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(12): 2212-2218. (in Chinese))
    [15]
    CUISINIER O, BORGNE T L, DENEELE D, et al. Quantification of the effects of nitrates, phosphates and chlorides on soil stabilization[J]. Engineering Geology, 2011, 117(3/4): 229-235.
    [16]
    廖晓勇, 崇忠义, 阎秀兰, 等. 城市工业污染场地:中国环境修复领域的新课题[J]. 环境科学, 2011, 32(2): 784-794. (LIAO Xiao-yong, CHONG Zhong-yi, YAN Xiu-lan, et al. Urban industrial contaminated sites: a new issue in the field of environmental remediation in China[J]. Environmental Science, 2011, 32(2): 784-794. (in Chinese))
    [17]
    ASTM C1308-08 Standard method for accelerated leach test for diffusive release from solidified waste and a computer program to model diffusive, fractional leaching from cylindrical waste forms[S]. 2009.
    [18]
    SW846 EPA Method 3051A Microwave assisted acid digestion of sediments, sludges, soils, and oils[S]. 2007.
    [19]
    刘松玉. 公路地基处理[M]. 南京: 东南大学出版社, 2009. (LIU Song-yu. Ground improvement in highway engineering[M]. Nanjing: Southeast University Press, 2009. (in Chinese))
    [20]
    彭容秋. 铅冶金[M]. 长沙: 中南大学出版社, 2004. (PENG Rong-qiu. Lead metallurgy[M]. Changsha: Central South University Press, 2004. (in Chinese))
    [21]
    MOON D H, DERMATAS D. An evaluation of lead leachability from stabilized/solidified soils under modified semi-dynamic leaching conditions[J]. Engineering Geology, 2006, 85(1/2): 67-74.
    [22]
    GRUBB D G, MOON D H, REILLY T, et al. Stabilization/solidification (S/S) of Pb and W contaminated soils using Type I II Portland cement, silica fume cement and cement kiln dust[J]. Global NEST Journal, 2009, 11(3): 267-282.
    [23]
    BENSTED J, BARNES P. Structure and performance of cements[M]. 2nd ed. U K: Taylor & Francis, 2002.
    [24]
    LI X, ZHANG L M. Characterization of dual-structure pore-size distribution of soil[J]. Canadian Geotechnical Journal, 2009, 46(2): 129-141.
    [25]
    李 旭, 张利民, 敖国栋. 失水过程孔隙结构、孔隙比、含水率变化规律[J]. 岩土力学, 2011, 32(增刊1): 100-105. (LI Xu, ZHANG Li-min, AO Guo-dong. Variations of pore structure, void ratio, and water content in soil drying process[J]. Rock and Soil Mechanics, 2011, 32(S1): 100-105. (in Chinese))
    [26]
    LI X D, POON C S, SUN H, et al. Heavy metal speciation and leaching behaviors in cement based solidified/stabilized waste materials[J]. Journal of Hazardous Materials, 2001, 82(3): 215-230.
    [27]
    KNOP A, VANGULCK J, HEINECK K S, et al. Compacted artificially cemented soil-acid leachate contaminant interactions: Breakthrough curves and transport parameters[J]. Journal of Hazardous Materials, 2008, 155(1/2): 269-276.
    • Related Articles

  • Related Articles

    [1]ZHONG Yu-qing, CAI Guang-hua, WANG Jun-ge, WANG Zhong, SONG Long-guang. Strength and electrical conductivity characteristics of zinc contaminated soil carbonated/stabilized with GGBS-reactive MgO[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 221-224. DOI: 10.11779/CJGE2021S2052
    [2]WANG Fei, XU Wang-qi. Strength and leaching performances of stabilized/solidified (S/S) and ground improved (GI) contaminated site soils[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(10): 1955-1961. DOI: 10.11779/CJGE202010022
    [3]LI Jiang-shan, WANG Ping, ZHANG Ting-ting, HUANG Qian, XUE Qiang. Leaching characteristics and mechanism of heavy metal in solidified/ stabilized contaminated soil under acid solution soaking[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(s1): 135-139. DOI: 10.11779/CJGE2017S1027
    [4]WANG Zhe, DING Yao-kun, XU Si-fa, XIONG Zhuang, ZHOU Hong-li, WU Xue-hui. Semi-dynamic leaching tests on leaching properties of MPC-solidified zinc-contaminated soil under acid rain environment[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(4): 697-704. DOI: 10.11779/CJGE201704015
    [5]ZHANG Ding-wen, CAO Zhi-guo, LIU Song-yu, CHEN Lei. Characteristics and empirical formula of electrical resistivity of cement-solidified lead-contaminated soils[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(9): 1685-1691. DOI: 10.11779/CJGE201509017
    [6]WEI Ming-li, DU Yan-jun, LIU Song-yu, ZHU Jing-jing, YANG Yu-ling. Leaching characteristics of lead-contaminated clay stabilized by phosphate rock[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(4): 768-774. DOI: 10.11779/CJGE201404024
    [7]ZHAO Cheng, SHEN Xiang-dong, JIA Shang-hua, ZHAO Chun-feng. Influence of density on strength of cemented soil[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 360-365.
    [8]LIU Zhao-peng, DU Yan-jun, JIANG Ning-jun, ZHU Jing-jing. Leaching properties of cement-solidified lead-contaminated clay via semi-dynamic leaching tests[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(12): 2212-2218.
    [9]JIANG Ning-jun, DU Yan-jun, LIU Song-yu, LI Chen-yang, LI Wen-tao. Leaching behaviors of cement-based solidification/stabilization treated lead contaminated soils under effects of acid rain[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(4): 739-744.
    [10]DU Yan-jun, JIANG Ning-jun, WANG Le, WEI Ming-li. Strength and microstructure characteristics of cement-based solidified/stabilized zinc-contaminated kaolin[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 2114-2120.
    • Supplements (0)

Catalog

    Get Citation
    PDF
    XML
    Article views (356) PDF downloads (478) Cited by()
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return