Engineering properties and microstructural characteristics of cement-stabilized zinc-contaminated kaolin
Engineering properties and microstructural characteristics of cement-stabilized zinc-contaminated kaolin
复制标题
水泥稳定锌污染高岭土的工程性能及微观结构特征
DOI：
10.1139/cgj-2013-0177
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发表时间：
2014-03-01
影响因子：
3.6
通讯作者：
Puppala, Anand J.
中科院分区：
文献类型：
--
作者：
Du, Yan-Jun;Jiang, Ning-Jun;Puppala, Anand J.
本文介绍了一项研究的详细信息，该研究涉及工程性能的确定、主要水化产物相的识别以及锌污染（本文中称为锌污染）高岭土在水泥添加剂稳定化时的微观结构特征。研究了锌 (Zn) 浓度水平对土壤整体特性的影响，包括阿特伯格极限、含水量、pH、应力应变特性、无侧限抗压强度和割线模量。此外，还进行了 X 射线衍射、扫描电子显微镜和压汞孔隙率测定法研究，以了解控制稳定高岭土工程性能变化的机制。研究表明，Zn浓度水平对稳定高岭土的工程性能、形成的水化产物的相以及微观结构特征有相当大的影响。特...
This paper presents details of a study that deals with determination of engineering properties, identification of phases of major hydration products, and microstructural characteristics of a zinc-contaminated (referred to as Zn-contaminated in this paper) kaolin clay when it is stabilized by a cement additive. Investigations were carried out with respect to the effect of the level of zinc (Zn) concentration on the overall soil properties including Atterberg limits, water content, pH, stress–strain characteristics, unconfined compressive strength, and secant modulus. In addition, X-ray diffraction, scanning electron microscopy, and mercury intrusion porosimetry studies were conducted to understand the mechanisms controlling the changes in engineering properties of the stabilized kaolin clay. The study reveals that the level of Zn concentration has a considerable influence on the engineering properties, phases of hydration products formed, and microstructural characteristics of the stabilized kaolin clay. T...