Pemanfaatan Bioplastik dari Limbah Tandan Kosong Kelapa Sawit untuk Peningkatan Nilai CBR (California Bearing Ratio) Tanah Lempung

Abstract

The massive increase in palm oil production in Indonesia has created problems in the large volume of palm oil processing waste that must be managed. One of the efforts made to reduce this impact is by reusing the empty fruit bunches waste of palm oil as a material for making bioplastics. This bioplastic is then used to improve soil bearing capacity by increasing the CBR (California Bearing Ratio) value in expansive clay soils. The effectiveness of the use of bioplastics was measured by comparing the test results of laboratory CBR values of soil samples mixed with bioplastics with varying levels of 0%, 4%, 10%, and 15%, respectively. The test results showed that samples that had been treated with bioplastics had a greater soaked CBR value than sample without bioplastics. The highest soaked CBR value obtained was 21.14%, namely in sample with 10% bioplastic content. Bioplastic from empty fruit bunches of palm oil has the potential to be developed as a material to improve soil bearing capacity.