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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Journal ArticleDOI
Effect of chlorides and sulphates on lime treated marine clays
TL;DR: In this article, a test program was carried out to study the changes in the particle level of soil systems attributed to lime in a marine environment and the formation of various new reaction products due to soil-lime reactions were identified by X-Ray Diffraction (XRD) and the same was investigated using Scanning Electron Microscope (SEM).
Journal ArticleDOI
Particle Interaction and Rheology of Illite-Iron Oxide Complexes
TL;DR: In this article, the Bingham yield stress for suspensions of illite-iron oxide complexes is examined as a function of pH and iron oxide content, and it was shown that the addition of iron oxides to illite increased the yield stress over a pH range of 3 to 10.
Journal ArticleDOI
Sulphate analysis on black mudstones
A. B. Hawkins,G. M. Pinches +1 more
TL;DR: In this paper, the authors reviewed the established testing procedure for determining the SO3 content of soils and reported an increase in sulphur content in the Westbury Beds in 17 months.
Journal ArticleDOI
Physico-Chemical Properties of Soils: Ion Exchange Phenomena
TL;DR: In this article, the origin of the various types of electrical charges carried by soil colloids are described and the influence of different species of exchangeable cations on the forces arising from the electrical fields due to these charges is discussed in terms of the theory of the diffuse double layer.