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Swell-Shrink Behaviour of Expansive Soils Under Fly Ash Cushions
| Content Provider | Semantic Scholar |
|---|---|
| Author | Srirama, Anjana |
| Copyright Year | 2010 |
| Abstract | Structures built in expansive clays are likely to be damaged due to the strains caused in them following alternate swelling and shrinkage. Variation in the moisture regime during monsoon and summer is the cause for this alternate swelling and shrinkage. Several innovative foundation techniques were suggested to overcome the problems. Overburdens in the form of sand cushion and CNS cushion have also been tried for arresting heave. But, most of them suffer from one shortcoming or the other. In order to overcome the drawbacks of the existing foundation practices, fly ash cushion, stabilized with lime or cement, has been tried by the authors. This proved to be very effective in arresting heave. However, its efficacy over a few cycles of wetting and drying needs to be established since CNS cushion, which was found to be effective in arresting heave initially, has not been found to be as effective during the subsequent cycles of wetting and drying. The present study relates to the behaviour of expansive clays under lime- or cement-stabilized fly ash cushion subjected to several wetting and drying cycles. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://gndec.ac.in/~igs/ldh/conf/2010/articles/t020.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
