Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Compaction Characteristics of Fibre-Reinforced Expansive Soils—Plasticity Approach
Expansive soils are the most problematic soils, which cover almost one-fifth of area of the Indian subcontinent. These soils exhibit swelling and shrinkage, causing distress in building foundations and pavements. Owing to lack of good construction sites having higher bearing capacity and less subjective settlements, it is imperative that the construction industry has to go in for construction sites in marginal and wastelands. For the coarse-grained soils, physical phenomenon of engineering behaviour is observed and physicochemical behaviour is observed for fine-grained soils. The recent research studies have shown that reinforcement itself gives effective control over swell-shrink behaviour and improves the compaction characteristics of expansive soils. For the present study, natural fine-grained expansive soils having different liquid limit ranges (55, 65, and 85%) were identified. The index properties and IS standard and modified compaction tests were conducted on natural fine-grained expansive soils blended with variation in fibre percentage from 0.5 to 3%. The correlations were developed between liquid limit, plastic limit, shrinkage limit, plasticity index, and shrinkage index, activity of soil with percentage variation in fibre. The maximum magnitude of maximum dry density was achieved at 0.5% blending of fibre for the soils having liquid limit 58%, whereas for soils having liquid limit 74% and 85%, it is 1.5% and 2%, respectively. For the maximum unconfined compressive strength (UCS), the optimum percentage of fibre content for soils 1, 2, and 3 is 0.5%, 1%, and 2%, respectively, and it is increasing with increase in liquid limit of the soil.
Compaction Characteristics of Fibre-Reinforced Expansive Soils—Plasticity Approach
Expansive soils are the most problematic soils, which cover almost one-fifth of area of the Indian subcontinent. These soils exhibit swelling and shrinkage, causing distress in building foundations and pavements. Owing to lack of good construction sites having higher bearing capacity and less subjective settlements, it is imperative that the construction industry has to go in for construction sites in marginal and wastelands. For the coarse-grained soils, physical phenomenon of engineering behaviour is observed and physicochemical behaviour is observed for fine-grained soils. The recent research studies have shown that reinforcement itself gives effective control over swell-shrink behaviour and improves the compaction characteristics of expansive soils. For the present study, natural fine-grained expansive soils having different liquid limit ranges (55, 65, and 85%) were identified. The index properties and IS standard and modified compaction tests were conducted on natural fine-grained expansive soils blended with variation in fibre percentage from 0.5 to 3%. The correlations were developed between liquid limit, plastic limit, shrinkage limit, plasticity index, and shrinkage index, activity of soil with percentage variation in fibre. The maximum magnitude of maximum dry density was achieved at 0.5% blending of fibre for the soils having liquid limit 58%, whereas for soils having liquid limit 74% and 85%, it is 1.5% and 2%, respectively. For the maximum unconfined compressive strength (UCS), the optimum percentage of fibre content for soils 1, 2, and 3 is 0.5%, 1%, and 2%, respectively, and it is increasing with increase in liquid limit of the soil.
Compaction Characteristics of Fibre-Reinforced Expansive Soils—Plasticity Approach
Lecture Notes in Civil Engineering
Muthukkumaran, Kasinathan (Herausgeber:in) / Jakka, Ravi Sankar (Herausgeber:in) / Parthasarathy, C. R. (Herausgeber:in) / Soundara, B. (Herausgeber:in) / Anil, Unnam (Autor:in) / Prasanna, H. S. (Autor:in) / Mahesh Kumar, S. (Autor:in) / Mahalakshmi (Autor:in)
Indian Geotechnical Conference ; 2021 ; Trichy, India
01.12.2022
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Swelling and Compaction Characteristics of Fibre-Reinforced Expansive Soils
| Springer Verlag | 2024
Swell-consolidation characteristics of fibre-reinforced expansive soils
| British Library Online Contents | 2016
Swell-consolidation characteristics of fibre-reinforced expansive soils
| British Library Online Contents | 2016
Swell-consolidation characteristics of fibre-reinforced expansive soils
| British Library Online Contents | 2016