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Identification, Characterization and Engineering Properties of Expansive Soils and Stabilization of the Same using Glass Powder


Author(s):

Roouf Un Nabi Dar , ISLAMIC UNIVERSITY OF SCIENCE AND TECHNOLOGY, AWANTIPORA; Muttahir Hussain, ISLAMIC UNIVERSITY OF SCIENCE AND TECHNOLOGY, AWANTIPORA; Inayat Gul, ISLAMIC UNIVERSITY OF SCIENCE AND TECHNOLOGY, AWANTIPORA; Peerzada Azmat Arif , ISLAMIC UNIVERSITY OF SCIENCE AND TECHNOLOGY, AWANTIPORA

Keywords:

Free swell, Atterberg’s limits, stabilization, Bentonite

Abstract:

From the literature review it has been observed that expansive soils or generally soils that show shrink-swell behavior render construction of structures difficult and has proven destructive in the past as well Many towns, cities, transport routes, services and buildings are founded on expansive soils. These materials constitute significant hazard to engineering construction in terms of their ability to swell or shrink, usually caused by seasonal changes in moisture content. Superimposed on these widespread climatic influences are local ones such as tree roots and leakage from water supply pipes and drains. The swelling of shrinkable clay soils after trees have been removed can produce either very large uplifts or very large pressures (if confined), and the grounds recovery can continue over a period of many years (Cheney, 1986). It is the differential, rather than the total, movement of the foundation, or superstructure, that causes major structural damage. The structures most affected by expansive soils include the foundations and walls of residential and other low-rise buildings, pipelines, pavements and shallow services. Frequently, these structures only receive a cursory site investigation, if any. It is usually not until sometime after construction, that problems may come to light. The knowledge of the same soil and research work done about the same in our valley is not encouraging. There is little data available on about the areas in j&k where this unfriendly soil is found and need is to study the same soil. That is the reason we wanted to work on expansive soil. But our first step, to explore the regions with such type of soil failed as the areas we surveyed and examined did not prove to be having such soil. The Karewa soil (from pampore), we examined believed to be of expansive nature was taken for examination, study and testing and was characterized and we performed all our work on the same. Tests were performed on the sample taken from pampore karewas, soil was classified, engineering properties were determined. Then there was lab preparation of expansive soil by increasing the clay content on account of addition of bentonite and the lab prepared soil was stabilized for high expansiveness using glass powder.


Other Details:

Manuscript Id :IJSTEV3I10078
Published in :Volume : 3, Issue : 10
Publication Date: 01/05/2017
Page(s): 186-188
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