Amalia Zahratul Putri, Munirwansyah, Munira Sungkar
Soil stabilization is a way that is most considered to be cheaper than replacing old, less good soil with better ones with the aim of improving the properties of the original soil which has low bearing capacity, high plasticity index, high swelling and poor gradation, especially for areas that requires soil improvement. One of the stabilizing materials that can be used is lime as an additive which is useful for increasing soil stiffness and strength. The lime used in this research came from Tripe Jaya District, Gayo Lues Regency. This research was carried out by taking soil samples in a quarry which was then added with lime as a stabilizing agent. This soil was tested for physical properties, compaction, and a shear strength test (direct shear). Research was conducted to see the results of soil stabilization with lime on changes in soil strength when receiving the effects of both natural and artificial (remolded) factors. The results of the research can be used to mitigate cases of road or building collapse on the subgrade or infrastructure built on the land. The primary data required in this research was taken from the results of examinations and tests in the laboratory. The tests and inspections carried out are in the form of measuring the physical properties of the soil such as water content, specific gravity, plastic limit, liquid limit, and PSA (Particle Size Analyzer), as well as measuring mechanical properties in the form of soil compaction parameters with a standard proctor on the original soil and soil shear strength using direct shear test to obtain friction angle (ϕ) and cohesion (c). In this research, a comparison of the stabilized shear strength of clay soil with Gayo Lues limestone has been carried out with several other soil sources for landslide analysis. The analysis results show that Gayo Lues limestone has a good ability to increase the strength and stability of clay soil. It is hoped that this research will provide useful information in selecting the right soil stabilization material. © The Authors, published by EDP Sciences.
Syiah Kuala University, Banda Aceh, 23111, Indonesia; Department of Civil Engineering, Syiah Kuala University, Banda Aceh, 23111, Indonesia
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