| Author | Kim, Gyo Won |
| Call Number | AIT Thesis no.GT- 81-25 |
| Subject(s) | Soils--Thailand, Northeastern--Testing
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Tests on the physical, chemical and mineralogical properties on the soils from 3 selected sites of dispersive soils and 1 selected site of nondispersive soil are carried out in the field and laboratory during this study.
In order: to find out the relationship between clay
contents and dispensability of the soil, some specimens are
artificially mixed with a certain amount of clay in the
laboratory and tested by means of pinhole tests. The artificial soils are dispersed in pinhole tests regardless of its clay content. For the relationship between the dispersity and a water content and/or a density of the specimen on natural soils, pinhole tests are also carried out
at a different water content and different tamps per layer.
Natural soils are dispersed in pinhole tests regardless of their water content and a number of tamps per layer.
Chemical properties on the soil saturation extract and
reservoir water are also determined by means of sodium
adsorption ratio(SAR), exchangeable sodium percentage(ESP) and
pH. The dispersive soils in the region have ranges of 1.8-6.7
SAR, 1.4-7.9 ESP and 5.4-9.0 pH, while a nondispersive soil
has only 0.5 SAR, no ESP and 4.3 pH. The main minerals of the
clay fraction in the soil are montmorillonite, kaolinite and
illite which are analyzed by the X-ray diffraction method.
The dispersive soils in this region have somewhat higher
SAR, ESP and pH value chemically, and higher content of a montmorillonite mineralogically than those of the
nondispersive soil. The dispersive soil area has distinct
features, i.e., a pseudocarps and cloudy water which are good
indicators of the dispersive soil area in the field.
|
| Year | 1982 |
| 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. ;Yudhbir
|
| Scholarship Donor(s) | Government of Thailand |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1982 |