Consolidation Test(discussion And Conclusion) 2a1gh

CONCLUSION Consolidation is a process that involving the soils decreasement in volume. According to Karl Terzaghi, consolidation is any process which involves decrease in water content of a saturated soil without replacement of water by air. In general it is the process in which reduction in volume takes place by the removal of water under long term static loads. It occurs when stress is applied to a soil that causes the soil particles to pack together more tightly, therefore reducing its bulk volume. When this occurs in a soil that is saturated with water, water will be squeezed out of the soil. The magnitude of consolidation can be predicted by many different methods. In the Classical Method, developed by Terzaghi, soils are tested with an oedometer test to determine their compression index. This can be used to predict the amount of consolidation. From the experiment that we have done, we have achieved the objective of the experiment that to determine the consolidation characteristic of soils of flow permeability. In this experiment we used 1 sample of soil that is weighed 5.0 kg. From the graph settlement versus log time and graph settlement versus square root time, we get a curve shape for the sample. From the graph we can find the value of t50, t90 and other value that is need to calculate the value coefficient of consolidation, Cv. From the calculation, we can see that the value of coefficient of consolidation, Cv will increase when the load that we applied to the peat soil is increase.

DISCUSSION Based on the experiment that we have done, we have determined the consolidation characteristic of soils of flow permeability through the data that we get after experiment has finished. Moisture content supply sample silty clay soil is 60.76%. The coefficient of consolidation, Cv using Casagrande method is 8.436 x 10−5 m²/year. Based on the experimental data obtained in the laboratory, dry density and specific gravity values of tropical peat correlate well. When large loads such as embankments are applied to the surface, cohesive sub soils will consolidate, such as settle over time, through a combination of the rearrangement of the individual particles and the squeezing out of water. The amount and rate of settlement is of great importance in construction of such structure on a curtain soil area. For example, an embankment may settle until a gap exists between an approach and a bridge abutment. The calculation of settlement involves many factors, including the magnitude of the load, the effect of the load at the depth at which compressible soils exist, the water table, and characteristics of the soil itself.