| dc.description.abstract | Soil is one of the important elements in the implementation of
construction. So it is necessary to ensure that the bearing capacity of the soil is
safe for the load that will be carried. The clay soil has a very low support
strength and soil glide strength, and its flowering properties and water content are high. The attempt to cope with the landslide condition is through
stabilization. In this study, soil stabilization was done chemically, namely by adding crab shell powder.
Research was conducted to determine the impact of using crab shell powder as clay soil stabilization material, with percentages of stabilizing
material of 2%, 4%, 6%, 8%, 10%, 12%, 14%, 16%, 18%, and 20% being
reviewed with laboratory CBR testing and unconfined compressive strength.
From the results of the research, the original soil according to the AASHTO classification, is included in the A-7-6 group, and according to the USCS classification, it is included in the CL (Clay-Low Plasticity) group,
having a water content of 66.35%; specific weight of 2,684; liquid limit of
47,91%; plastic limit of 12,04% and a plasticity index of 35,87%. The unsubmerged laboratory CBR value for the original soil is 8.97%, and the
unsubmerged compressive strength value for the original soil is 1.432
kg⁄cm2. The optimum CBR value occurs with a variation of 18% crab shell powder is 10.68% and the optimum free soil compressive strength value occurs
with a variation of 18% crab shell powder is 2.651 kg⁄cm2 | en_US |
