Journal ArticleDOI
Sulphate Attack in Lime-Treated Marine Clay
G. Rajasekaran,S. Narasimha Rao +1 more
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
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Soil Chemical Analysis
TL;DR: Soil chemical analysis, Soil Chemical Analysis (SCA), this paper, is a technique for soil chemical analysis that is used in the field of Soil Chemistry and Chemical Engineering.
Journal ArticleDOI
Lime-Induced Heave in Sulfate-Bearing Clay Soils
TL;DR: In this article, the authors found abundant thaumasite, a complex calcium-silicate-hydroxide-sulfate-carbonate-hyd rate mineral, forming a solid solution series with ettringite.
Journal ArticleDOI
Practical problems from surprising soil behavior
TL;DR: In this paper, the aging of quick clay after sampling, the remolded strength increases in samples maintained at constant water content, time effects in freshly densified or deposited sand, in which natural sand deposits can lose strength if disturbed but regain strength over time periods of weeks to months, and apparently sound lime-stabilized soil that swells and disintegrates starting a few years after construction.
Book
Soil Stabilization With Cement and Lime
TL;DR: In this article, the authors present a review on the subject of soil stabilization, which is the process whereby soils and related materials are made stronger and more durable by mixing with a stabilizing agent.