Journal ArticleDOI
Sulphate Attack in Lime-Treated Marine Clay
G. Rajasekaran,S. Narasimha Rao +1 more
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TLDR
In this article, a laboratory investigation was carried out to examine the influence of sodium and calcium sulphates on the behavior of lime column treated marine clays and the formation of various reaction products, including ettringite.Abstract:
The use of lime to improve the properties of soft clays is not new. Recently the deep lime mixing technique has been extended to coastal regions for improving the behavior of weak marine clays. But lime treatment technique should be approached carefully for clay containing a high percentage of sodium sulphate. The presence of sulphate in lime-treated clays may result in high swelling due to the formation of the expansive mineral, ettringite. A limited study of lime-treated marine clays has shown a need to further explore the formation of ettringite and its stability with time. In this article, a laboratory investigation was carried out to examine the influence of sodium and calcium sulphates on the behavior of lime column treated marine clay. Scanning electron microscopy (SEM) was used to identify the formation of various reaction products, including ettringite. Test results indicate that the formation of ettringite in the lime-sodium sulphate-clay system adversely affects the engineering behavio...read more
Citations
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Journal ArticleDOI
Investigation on strength and microstructure characteristics of nano-MgO admixed with cemented soft soil
TL;DR: In this paper, the effectiveness of nano-MgO in strength properties and microstructure characteristics of cement stabilized soft soil were analyzed in a series of unconfined compression tests.
Journal ArticleDOI
Compressive and Tensile Behavior of Polymer Treated Sulfate Contaminated CL Soil
TL;DR: In this paper, the compressive and tensile behavior of polymer treated sulfate contaminated CL soil was investigated and the effect of treating the soil with a polymer solution was compared to 6% lime treated soil.
Journal ArticleDOI
Durability of lightweight alkali-activated ground granulated blast furnace slag (GGBS) stabilized clayey soils subjected to sulfate attack.
TL;DR: In this paper, an experimental study on the sulfate attack resistance of a LAS stabilized clayey soil, which is composed of GGBS, sodium silicate, calcium carbide residue (CCR), air foam, and clayy soil, was conducted.
Journal ArticleDOI
An experimental study on the behavior of lime and silica fume treated coir geotextile reinforced expansive soil subgrade
Nitin Tiwari,Neelima Satyam +1 more
TL;DR: In this article, a single and double layer of coir geotextile mat at various depths have been placed to evaluate the effect of reinforcement on expansive soil subgrade, and the experimental results analyzed indicate that the lime treated coir geo-textextexel mat reduces the upward swelling pressure by 52.19% in single layer and 81.89% in double-layer.
References
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Book ChapterDOI
Clay Soil Heave Caused by Lime-Sulfate Reactions
JK Mitchell,Dimitris Dermatas +1 more
Journal ArticleDOI
Combining Industrial Wastes with Lime for Soil Stabilization
TL;DR: In this article, the authors examined the potential for burning various industrial wastes combined with lime, in certain proportions, to produce a byproduct having cementing characteristics similar to ordinary portland cement (OPC).
Journal ArticleDOI
Effects of monovalent and divalent metal sulphates on consistency and compaction of lime-stabilised kaolinite
John Kinuthia,S. Wild,G.I Jones +2 more
TL;DR: In this paper, the authors show how the commonly occurring monovalent metal sulphates of sodium and potassium, and the divalent ones of calcium (gypsum) and magnesium, affect the consistency and dynamic compaction properties of an industrial kaolinitic clay soil of high purity, to which sulphates have been artificially introduced.
Journal ArticleDOI
The chemical and mineralogical controls upon the residual strength of pure and natural clays
TL;DR: The residual strength of clays is, to a large extent, determined by the type of clay minerals and the chemistry of the constituent pore water, and changes in either of these factors cause corresponding alterations in residual shear strength as discussed by the authors.
Journal ArticleDOI
Reaction products formed in lime-stabilized marine clays
S. Narasimha Rao,G. Rajasekaran +1 more
TL;DR: In this paper, the beneficial changes occurred in a marine clay due to the diffusion of lime from lime column and lime injected points have been studied using XRD and SEM techniques and new compounds formed have been identified using the XRD technique.