Effect of Synthetic Fibres and Silica Fume on Behavior of Expansive Soil
Kanneganti Sravani1, Suresh Kommu2, S.S. Asadi3

1Kanneganti Sravani, PG Student, Department of Civil Engineering, VNRVJIET, Hyderabad (Telangana), India.
2Suresh Kommu, Research Scholar, Assistant Professor, VNRVJIET, Hyd, KL University, Guntur (A.P), India.
3SS. Asadi, Department of Civil Engineering, Vignan’s Foundation for Science, Technology and Research, Deemed to be University, (A.P), India.
Manuscript received on 04 May 2019 | Revised Manuscript received on 16 May 2019 | Manuscript Published on 28 May 2019 | PP: 768-774 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F11420476C219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The expansive potential of soil varies dramatically from one season to another at any site due to the change in moisture content which is the driving force in swell/shrink cycle. In this study, research has been carried out to study the effect of Synthetic-Fibres (polypropylene and polyester fibres) and silica fume in curbing the swelling tendency of expansive clayey soils. The behavioral changes in the soil sample were determined using One Dimensional swell-consolidation tests. In addition, the strength characteristics of the soil were also determined using UCS and CBR tests for a varied range of percentages of Synthetic-Fibres induced (i.e., from (0.2% to 0.8%) and silica fume (4% to 10%). The swell-consolidation and strength parameters of soil are accomplished for varied Synthetic-fibres and Silica Fume proportions and it is observed that the swell pressure has been decreased by addition of fibres and silica fume whereas void ratio has been increased on addition of Synthetic-fibres and silica fume. The unconfined compressive strength and California Bearing Ratio of soil was increased by increasing fibre and silica fumeproportions.
Keywords: Swell Pressure, Void Ratio, UCS, CBR, Synthetic-Fibres.
Scope of the Article: Soil-Structure Interaction