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Decreasing the quality of the environment can have an impact on the lives of living creatures so that environmental protection and management is needed. One way to improve environmental quality is by utilizing industrial waste. Industries that produce a lot of waste and have minimal processing include: tire factories, textile factories and power plants. Waste Rubber as tire factory waste causes pollution to the environment. This research was conducted to determine the suitability of the quality of asphalt concrete so that it reaches the optimum point by replacing part of the asphalt with waste rubber with variation I (waste rubber 0%), variation II (waste rubber 12.5%), variation III (waste rubber 25%), variation IV (waste rubber 37.5%), and variation V (waste rubber 50%). The research method uses the Marshall method by referring to the 2018 Bina Marga Specifications Revision III. The results of the research show that the optimum asphalt content obtained by each variation with waste rubber is: Variation I (0%), Variation II (12.5%), Variation III (25%), Variation IV (37.5%), and Variation V (50%). Next, the test values for all parameters were obtained with the following information: the stability values, VIM, VMA, VFB, and Marshall Qoutient for all variations of partial asphalt replacement met specifications, however the remaining Marshall stability values for variation IV did not meet specifications. For variations in V (50%), from the Marshall test results, none of the Marshall stability results (kg) meet the specifications, namely min 800 kg. Because the Marshall stability values did not meet the specification requirements, the test was no longer continued (declared failed/unsuccessful). This shows that the asphalt content and the additional use of waste rubber affect the reduction in the quality of the asphalt concrete mixture.
Key Words: Waste Rubber, LASTON, Marshall Test.
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