A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Analysis of Freezing Thawing Cycles on Unconfined Compressive Strength of Expansive Soil
A significant portion of the earth surface is subjected to arid and semi-arid climatic conditions as a result of which many soils encountered in engineering practise are classified as an unsaturated soil. An unsaturated soil exists between the ground surface and natural water table. The type of soil frequently undergoes wetting and drying process due to seasonal variations. Due to this process, expansive soil may undergo swelling-shrinkage process. Considering the similarity between wetting–drying and freezing–thawing process, this study was an attempt to analyse the effect of the freezing–thawing process on unconfined compressive strength (UCS) of expansive soil. For the experimental study, samples were moulded to achieve full compaction and field compaction (100, 95 and 85% of Proctor density) for different degree of saturation (60, 40 and 20% of optimum moisture content). The moulded samples were passed through required no. of the freezing–thawing cycles (0, 1, 3 and 5 nos.) and then tested for their UCS, respectively. Results showed the effect of the freezing–thawing cycles for different compaction energy on UCS of expansive soil. It was observed that the UCS value increases up to 3 cycles and then decreases for the full compaction for different degree of saturation. Whilst for field compaction, the UCS value reduces with the increasing no of freezing–thawing cycles.
Analysis of Freezing Thawing Cycles on Unconfined Compressive Strength of Expansive Soil
A significant portion of the earth surface is subjected to arid and semi-arid climatic conditions as a result of which many soils encountered in engineering practise are classified as an unsaturated soil. An unsaturated soil exists between the ground surface and natural water table. The type of soil frequently undergoes wetting and drying process due to seasonal variations. Due to this process, expansive soil may undergo swelling-shrinkage process. Considering the similarity between wetting–drying and freezing–thawing process, this study was an attempt to analyse the effect of the freezing–thawing process on unconfined compressive strength (UCS) of expansive soil. For the experimental study, samples were moulded to achieve full compaction and field compaction (100, 95 and 85% of Proctor density) for different degree of saturation (60, 40 and 20% of optimum moisture content). The moulded samples were passed through required no. of the freezing–thawing cycles (0, 1, 3 and 5 nos.) and then tested for their UCS, respectively. Results showed the effect of the freezing–thawing cycles for different compaction energy on UCS of expansive soil. It was observed that the UCS value increases up to 3 cycles and then decreases for the full compaction for different degree of saturation. Whilst for field compaction, the UCS value reduces with the increasing no of freezing–thawing cycles.
Analysis of Freezing Thawing Cycles on Unconfined Compressive Strength of Expansive Soil
Lecture Notes in Civil Engineering
Satyanarayana Reddy, C. N. V. (editor) / Muthukkumaran, K. (editor) / Satyam, Neelima (editor) / Vaidya, Ravikiran (editor) / Mansuri, Mohmad Maaz M. (author) / Dave, Bhavita (author) / Solanki, C. H. (author) / Desai, A. K. (author)
2021-09-27
12 pages
Article/Chapter (Book)
Electronic Resource
English
| British Library Conference Proceedings | 1996
The Effect of Freezing-Thawing Cycles on Performance of Fly Ash Stabilized Expansive Soil Subbases
| British Library Conference Proceedings | 2011