| Author | Fernando, Muthuthanthirige Jayantha |
| Call Number | AIT Thesis no. GT-78-22 |
| Subject(s) | Soil mechanics
|
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Science, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | A detailed investigation is made into the distribution, proper
ties, effects to the embankment and soil treatment of the dispersive soils at the Lam Sam Lai dam site. The physical and mechanical properties do not differ from those for normal soils. Further the dispersive soils have all three soil fractions, i.e. sand, silt and clay. Its importance is the phenomenon of erosion which exists in dispersive and
erosive soils only. Sodium analysis gives a correct idea of dispersive soils and forms one of the basic definitions of dispersive soils, while the pinhole test cannot separate dispersive from erosive soils. Soils having little sodium ions does not essentially imply non-dispersive soil since-it may have erosive tendencies which may be evident from the pinhole test. The pinhole test and sodium analysis fully identifies
dispersive soils. Lime treatment is applied, to dispersive soils using the pinhole apparatus and it shows that erosion decreases with increasing lime content. An experiment to determine the effect of lime and sodium
chloride content on erodibility of dispersive soils indicate that
erodibility decreases with increasing lime content where as it only decreases a little at first and then increases with increasing sodium chloride content. |
| Year | 1979 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical and Transportation Engineering (GT) |
| Chairperson(s) | Prinya Nutalaya |
| Examination Committee(s) | Balasubramaniam, A.S. ;Campbell, K.V.
|
| Scholarship Donor(s) | Government of Great Britain |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1979 |