OPTIMIZATION OF POLYMER AGGREGATE WITH SAND AND ASPHALT MIX FOR ROAD POTHOLES REPAIR

Heri Sujatmiko (University of 17 August 1945 Banyuwangi, Indonesia)

International Journal of Multidisciplinary Research and Literature (IJOMRAL)
Vol. 1 No. 6 (2022): INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND LITERATURE

The roads in Banyuwangi city have sustained considerable damage; the asphalt supply has yet to meet the need because 45% of the roads are built using gravel and soil. Another problem is related to plastic, a type of waste that is difficult to recycle. To solve these two problems, we conducted research in making polymer-modified asphalt by utilizing food packaging plastic waste. The process followed the standard specification of Highway Construction Division 6, revision 3: the polymer blending process was performed when the hot asphalt mixing temperature was 145°C- 155°C. The research results found that the variation of asphalt content used in the mixture was 4.5%, 5%, 5.5%, and 6%. Moreover, the optimal asphalt content was 5.3%. The polymer was mixed with the optimal asphalt content of 0%, 1%, 2%, 3%, and 4%. The test results showed that the optimal polymer content was 0.5%, with a maximum of 1%. Polymer-modified asphalt had a high stability value of 23.64% greater than conventional. In addition, the air cavity value in the mixture was 5.74% greater than conventional asphalt. The discovery of this mixture of materials is very appropriate for sustainable road construction in Indonesia.