Effect of heat on the deformation and strength behavior of soft Bangkok clay | |
| Author | Grino, Lara Elaine Octavio |
| Call Number | AIT Thesis no.GE-03-09 |
| Subject(s) | Clay--Thailand--Bangkok Surfaces, Deformation of |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. GE-03-09 |
| Abstract | This investigation was on the effect of heat on three mechanical behaviors of soft Bangkok clay, namely: volume change, strength, and pore pressure build-up. Tests were done on clay specimens at different OCRs and varying elevated temperatures. The study employed the tiiaxial test system using modified equipment that was built to consider the application of heat. The the1mal strain of soft Bangkok clay was determined during drained heating tests. When heated, NC clays contract, while OC clays initially exhibit expansion and then tend to contract as temperature was further increased. The amount of thermal contraction of clays increases as the soil approaches the NC state. The effect of heat on the strength of soft Bangkok clay was determined after the drained heating tests, when the specimens have been allowed to cool. The strength of both NC and OC clays increased after being subjected to elevated temperatures. Higher temperatures result to higher shear sti·engths. The amount of increase of sti·ength was greater for NC clays. The pore pressure behavior of soft Bangkok clay was detetmined duiing undrained heating tests. The pore pressures in the clay increased as temperature was increased. Greater external stress resulted to higher pore pressure build-up. Upon cooling, the pore pressures dissipated. The pore pressures of OC clay specimens reduced to values less than their initial pore pressures. The amount of pore pressure build-up and dissipation was dependent on the OCR and the current applied stress. |
| Year | 2003 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. GE-03-09 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Bergado, Dennes T.;Glawe, Ulrich |
| Examination Committee(s) | Noppadol Phien-Wej |
| Scholarship Donor(s) | Government of Japan through The Asian Development Bank |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2004 |