Authors : B. Siti Fauziah and Muhammad Husni Maricar
Abstract: Structure deterioration is a process in which damage to structure begins to develop due to a combined impact of loads and environmental conditions around the location of the structure. In general, researchers seek to analyze the extent to which changes in the mechanical behavior of soil under a structure when hampered by a dry and wet cycle. This research was conducted in order to analyze changes in CBR and the unconfined compressive strength of soft soil due to the dry-wet scenario. Laboratory investigation results showed that due to the dry-wet cycle, the CBR and UCS values had decreased, particularly during the initial cycle, when the CBR and UCS values dropped dramatically by 77 and 87%. Moreover, by increasing cycles, the CBR and UCS value decreases. This relatively large decrease is influenced by changes in the formation of soil microstructure particles, the binding particles of which become tenuous due to the presence of water. At the saturated condition, CBR and UCS value might decrease by 90%. This result can be considered in the implementation of road construction in tropical climate zones where the wet-dry and the dry-wet cycle is a very important factor in the behavior of the road layers. One of the measures to be taken to solve this problem is to use chemical stabilization to increase the mechanical index of water content modification or using impermeable protection.
B. Siti Fauziah and Muhammad Husni Maricar, 2020. Experimental Study of Soil Bearing Capacity and Unconfined Compressive Strength Value on Dry-Wet Scenario. Journal of Engineering and Applied Sciences, 15: 1809-1812.