Engineering properties of Gambang residual soil /
Engineering properties of Gambang residual soil [electronic resource]
Hasren Binti Toni
- Kuantan, Pahang : UMP, 2009
- xviii, 90 p. : ill. (some col.) ; 30 cm. + 1 computer disc
Project paper (Bachelor of Civil Engineering) -- Universiti Malaysia Pahang - 2009
Bibliography : p. 57-58
Residual soil or also known as tropical residual soil is the formation of parent rocks by mechanical and chemical weathering. This type of soil can be found in many countries in the world. The process to produce the tropical soil is still very active and the weathering development is faster than the erosive factor. Besides that, the environmental factor such as topography and drainage also gives effects to the deformation of properties of residual soil. Then, this characteristic will give affect to form the soil strength. Collapsible rate of Gambang residual soil is analyzed using single and double oedometer. The single oedometer method consist of the sample is initially saturated with water under a small seating load and allowed to collapse. The loading is 20kPa, 40kPa, 80kPa, 160kPa and 320kPa. Meanwhile single oedometer consist of testing two nominally identical samples. 0ne sample is test at the initial water content using standard incremental loading procedure and the other sample is, the method consist of incrementally loading a test specimen to reach the desired vertical stress, waiting for vertical deformation to cease, and then wetting the specimen with water at 80kPa. The collapsibility rate of Gambang residual soil is in range of 1% - 5% which can be classified as medium collapsibility. The sample also analyzed using different criterion based on the engineering properties of the sample. The result shows that Gambang residual soil has medium collapsibility. As the conclusion, Gambang residual soil can be classified as medium collapsibility.