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International Journal for Research Trends and Innovation
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ISSN Approved Journal No: 2456-3315 | Impact factor: 8.14 | ESTD Year: 2016
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Impact Factor : 8.14

Issue per Year : 12

Volume Published : 7

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Paper Title: INFLUENCE OF STRONGER OVERLYING LAYER AND REINFORCEMENT ON CBR PROPERTY OF DIFFERENT SOFT SUBGRADE - A LAB STUDY
Authors Name: LANKA PRAVEEN KUMAR , DR P V SURYA PRAKASH
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IJRTI_182444
Published Paper Id: IJRTI2206071
Published In: Volume 7 Issue 6, June-2022
DOI:
Abstract: Utilization of bulk quantiites of natural soil is a viable technique in pavement constructions. Natural Subgrade supports the pavement loads and hence should have adequate strength. Due to the limitation as these natural soils posses low strength due to their degree of compactness, type and minreals present, seldom, construction costs increase either for increasing thickness of pavement or for improving this weak subgrade. Providing stronger layer above soft layer and reinforcing weaker soils using geo-synthetics like geo-grids are few techniques to improve subgrade performance. Geosynthetics are synthetic materials manufactured and available in different types. The choice of geosynthetic depends to suit a function/ purpose and to some extent up on the properties of subgrade. Among all geosynthetic types’ geotextiles, geogrids etc. offer their applications in the areas of functioning namely separation and reinforcement. Present project work aims to study the influence of stronger aggregate layer over soft soil subgrade with and without reinforcement at the interface over CBR property of different subgrade. Four subgrade types with varying plasticity properties are use for present study. The soil subgrade is collected from different locations surrounding Rajam. Coarse aggregate are considered for preparation of overlying layer above soft subgrade. Laboratory and field CBR tests are conducted with varying Hr (Ha / Hs) from 0, 0.1, 0.2, 0.3, 0.4 0.5. Where Hs and Ha are thickness of subgrade and thickness of overlying aggregate respectively. Effect of separator reinforcement (geosynthetic) is also studied on CBR for various Hr. The results showed that the influence of plasticity, thickness of overlying stiff layer and reinforcement is considerable on CBR value. CBR is found to increase with Hr and decrease with plasticity and percentage of fines. The effect of reinforcement is good and hence is a considerable improvement in CBR. The CBR value has considerably increased when the tests were conducted on the field location.
Keywords: Plasticity index, CBR value, reinforcement, subgrade, stronger overlying layer, and Geosynthetics
Cite Article: "INFLUENCE OF STRONGER OVERLYING LAYER AND REINFORCEMENT ON CBR PROPERTY OF DIFFERENT SOFT SUBGRADE - A LAB STUDY", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 6, page no.415 - 418, June-2022, Available :http://www.ijrti.org/papers/IJRTI2206071.pdf
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ISSN: 2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publication Details: Published Paper ID: IJRTI2206071
Registration ID:182444
Published In: Volume 7 Issue 6, June-2022
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Page No: 415 - 418
Country: Kakinada, Andhra Pradesh, India
Research Area: Transportation Engineering 
Publisher : IJ Publication
Published Paper URL : https://www.ijrti.org/viewpaperforall?paper=IJRTI2206071
Published Paper PDF: https://www.ijrti.org/papers/IJRTI2206071
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ISSN: 2456-3315
Impact Factor: 8.14 and ISSN APPROVED
Journal Starting Year (ESTD) : 2016

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