Key parameters for controlling swell of expansive soil-hydraulic cement admixture | |
| Author | Aung Phyo Kyaw |
| Call Number | AIT Thesis no.GE-21-12 |
| Subject(s) | Swelling soils Soil cement Soil dynamics |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Geotechnical and Earth Resources Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Although the soil isn't very complicated, expansive soils are more complicated than normal soils. Soil expansion is an important factor to take into consideration when evaluating the performance of foundations built on expansive soil. Hydraulic cement and expansive soil mixtures are the primary focus of this study, and the key parameters for controlling swell of the expansive soil-hydraulic cement mixture are collected as a result of this research. Treatment depths can also be calculated using hydraulic cement ratios of 4%, 8%, 12% and 15% for treating the expansive soil. To put it another way, it is important to understand how hydraulic cement percentage changes affect the swelling of expansive soil-hydraulic admixture. In order to get the swell of expansive soil, performing the consolidation-swell test σ''CS is important. Consolidation-swell tests σ''CS are the primary focus of this investigation. But the parameter heave index CH is also needed to determine the total heave. The heave index can be measured with the percent swell in the specific inundation stress in “the consolidation-swell test” and “the constant-volume test” swelling pressure. It is useful to obtain the relationship between the swelling pressure and σ''CV determined from “constant volume test”, so that the heave index can be obtained on the basis of a single test, consolidation-swell test σ''CS. The relationship between σ''CS and σ''CV is based on the experimental result of expansive soil behavior and facilitates the heave prediction from a single oedometer test for each soil. The soil property "m" is used as a parameter in this method. Compaction, particle size distribution, and the Atterberg limit are among the most common soil properties tests. Thailand's Electricity Generating Authority of Thailand (EGAT) provided the soil sample for the study. The ASTM standard is used for all laboratory testing. |
| Year | 2022 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Chao, Kuo Chieh; |
| Examination Committee(s) | Avirut Puttiwongrak; |
| Scholarship Donor(s) | Asian Institute of Technology Scholarships; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2022 |