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Effect of Wetting–Drying Cycles on Strength Behavior of Lime Stabilized Expansive Soil
https://orcid.org/http://orcid.org/0000-0002-8559-6354
The behavior of stabilized subgrade soil subjected to cyclic Wetting and Drying (W–D) in the region, where temperature and climatic variations are significant like Rajasthan (temperature rises up to 50 °C), is essential for understanding its long-term durability. In the present study, effect of cyclic W–D on the strength behavior of lime treated black cotton soil cured up to 28 days has been investigated. The objectives have been achieved by performing the detailed characterization of materials used and by investigating the Unconfined Compressive Strength (UCS) of soil treated with optimum lime content (6%). The lime treated sample cured up to 28 days has been selected by considering the fact that formation of cementitious compounds of Al-and Si-hydrates, which are mainly responsible for strength improvement, needs longer time periods. The UCS has been determined for lime treated soil cured up to 28 days without and with subjected to W–D (up to 50 °C) for one and four cycles. The results showed that the improvement in soil plasticity has been observed immediately after addition of lime. The strength of lime treated soil tested in drying state increases over the curing period and number of W–D cycles. The increase in strength can be attributed to the pozzolanic reactions which happen over time and thereby, formation of compacted matrix with formation of cementitious compound.
Effect of Wetting–Drying Cycles on Strength Behavior of Lime Stabilized Expansive Soil
https://orcid.org/http://orcid.org/0000-0002-8559-6354
The behavior of stabilized subgrade soil subjected to cyclic Wetting and Drying (W–D) in the region, where temperature and climatic variations are significant like Rajasthan (temperature rises up to 50 °C), is essential for understanding its long-term durability. In the present study, effect of cyclic W–D on the strength behavior of lime treated black cotton soil cured up to 28 days has been investigated. The objectives have been achieved by performing the detailed characterization of materials used and by investigating the Unconfined Compressive Strength (UCS) of soil treated with optimum lime content (6%). The lime treated sample cured up to 28 days has been selected by considering the fact that formation of cementitious compounds of Al-and Si-hydrates, which are mainly responsible for strength improvement, needs longer time periods. The UCS has been determined for lime treated soil cured up to 28 days without and with subjected to W–D (up to 50 °C) for one and four cycles. The results showed that the improvement in soil plasticity has been observed immediately after addition of lime. The strength of lime treated soil tested in drying state increases over the curing period and number of W–D cycles. The increase in strength can be attributed to the pozzolanic reactions which happen over time and thereby, formation of compacted matrix with formation of cementitious compound.
Effect of Wetting–Drying Cycles on Strength Behavior of Lime Stabilized Expansive Soil
https://orcid.org/http://orcid.org/0000-0002-8559-6354
The behavior of stabilized subgrade soil subjected to cyclic Wetting and Drying (W–D) in the region, where temperature and climatic variations are significant like Rajasthan (temperature rises up to 50 °C), is essential for understanding its long-term durability. In the present study, effect of cyclic W–D on the strength behavior of lime treated black cotton soil cured up to 28 days has been investigated. The objectives have been achieved by performing the detailed characterization of materials used and by investigating the Unconfined Compressive Strength (UCS) of soil treated with optimum lime content (6%). The lime treated sample cured up to 28 days has been selected by considering the fact that formation of cementitious compounds of Al-and Si-hydrates, which are mainly responsible for strength improvement, needs longer time periods. The UCS has been determined for lime treated soil cured up to 28 days without and with subjected to W–D (up to 50 °C) for one and four cycles. The results showed that the improvement in soil plasticity has been observed immediately after addition of lime. The strength of lime treated soil tested in drying state increases over the curing period and number of W–D cycles. The increase in strength can be attributed to the pozzolanic reactions which happen over time and thereby, formation of compacted matrix with formation of cementitious compound.
Effect of Wetting–Drying Cycles on Strength Behavior of Lime Stabilized Expansive Soil
Lecture Notes in Civil Engineering
Patel, Satyajit (editor) / Solanki, C. H. (editor) / Reddy, Krishna R. (editor) / Shukla, Sanjay Kumar (editor) / Jha, Arvind Kumar (author) / Sharma, Manuj (author)
2021-04-23
11 pages
Article/Chapter (Book)
Electronic Resource
English
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