(PDF) Expansive Soils - ResearchGate
2012年1月1日 · Expansive soils are soils that experience significant volume change associated with changes in water contents. These volume changes can either in the form of swell or in the form shrinkage and...
An Experimental Study on the Geotechnical, Mineralogical, and …
2021年7月8日 · To mitigate the potential damages in structures constructed on expansive soil, it is necessary to assess the mineralogical and swelling characteristics of expansive soil. The current study aims to determine the geotechnical, mineralogical, and swell behavior of …
Expansive Soils are soils that have the ability to shrink and/or swell, and thus change in volume, in relation to changes in their moisture content. They usually contain some form of expansive clay mineral, such as smectite or vermiculite, that are able to absorb water and swell, increasing in volume, when they get wet and shrink when they dry.
Quantifying engineering parameters of expansive soils from their ...
2009年5月11日 · XRD test results show that the soil samples contain clay minerals such as smectite (montmorillonite and nontronite), illite and kaolinite (Fig. 5) which significantly influence engineering behavior of expansive soil due to their high activity; and original minerals such as quartz, feldspar and mica are which are common constituents of expansive ...
(PDF) An Experimental Study on the Geotechnical ... - ResearchGate
2021年7月8日 · To mitigate the potential damages in structures constructed on expansive soil, it is necessary to assess the mineralogical and swelling characteristics of expansive soil. The current study...
Expansive Soil - an overview | ScienceDirect Topics
Expansive soils, also known as swell-shrink soils, are one of the most problematic soils in highway construction and exhibit significant volume changes by swelling and shrinking while wet and dry, respectively. These changes in soil cause cracks, heaves, differential settlements, and damages to the overlying pavements leading to high ...
Microstructural investigation on the expansive soils for …
2024年9月30日 · Expansive soils are difficult to handle due to their high potential for volume changes, leading to structural damage. This study aims to characterize the microstructural and mechanical properties of expansive soils for sustainable stabilization purposes.
Evaluation of Soil Expansion Index from Routinely Determined ...
2011年9月1日 · Expansive soils can be characterized and classified based on their expansion and shrinkage potentials, measured by methods such as oedometer and triaxial swelling tests, suction, potential volume change (PVC), EI, and coefficient of linear extensibility (COLE) etc.
Fig. 2 X-ray diffractogram of the soil (N: Nontronite, M:...
In this study, stabilization with perlite and lime of an expansive clayey soil containing smectite group clay minerals such as montmorillonite and nontronite was investigated expe... ... XRD...
Enhancing the properties of swelling soils with lime, fly ash, and ...
2024年6月30日 · Administering swelling of problematic soils is critical for civil engineers to prevent structural distress. This paper summarizes studies on reduction of swelling potential using EPS, lime and fly ash individually. Chemical stabilization with lime and fly ash are conventional methods for expansive soil stabilization, with known merits and demerits.
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