Evaluasi Karakteristik Aspal Karet Alam Padat (AKAP) Hasil Penyimpanan Jangka Panjang Dibandingkan Aspal Penetrasi 60-70 dan Aspal PG 70
DOI:
https://doi.org/10.25170/jpk.v3i05.8160Keywords:
Asphalt, Rubber , PropertiesAbstract
Indonesia is the second largest producer of natural rubber. In today’s technology, natural rubber as a part of polymer material can be utilized in enhancing asphalt properties. Based on research conducted on rubber mix asphalt with a weight of 155 kg drum sourced from Lampung existing stocks produced in 2021 and adhering to Bina Marga General Specification Year 2018 2nd revision, rubber mix asphalt has better characteristics than penetration 60-70 asphalt but perform worse compared to performance grade asphalt 70. Penetration value of tested rubber asphalt material reached 55 which shows the rubber asphalt material has better hardness than asphalt penetration 60-70. However, testing for the dynamic shear temperature on occilation 10 rad/second for the rubber asphalt only reached 67.5°C with the dynamic shear temperature tested on residual RTFOT decreased to 64.5°C that shows the resiliency for rutting is lower for rubber asphalt compared to asphalt PG 70. Storing rubber asphalt for a periode of 4 years still fulfil minimum criteria required by specification however durability towards dynamic shear deformation decreased significantly.
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