THE EFFECT OF ADDITIONAL LDPE AND POLYURETHANE ON INCREASING PERFORMANCE OF POROUS ASPHALT MIXTURES
Yurika[1]*, Livia1, Makmur A1, and Rachmansyah1
1 Engineering and Science Computer Faculty- Civil Engineering Department, Krida Wacana Christian University, Tanjung Duren Raya no. 4 – West Jakarta, Indonesia
[1]* Corresponding author’s email: [email protected]
DOI: https://doi.org/10.20885/icsbe.vol4.art7
ABSTRACT
During the COVID-19 pandemic for more than two years, there was an acceleration in increasing LDPE household waste, especially from food packaging. The problem of plastic waste is an issue that requires more attention for reuse. Meanwhile, the urban infrastructure growth is followed by the reduction of water catchment areas, so that surface water runoff causes flooding. Responding to this, porous pavement is a solution for infrastructure development, that has a low impact on the environment. However, the fact is that porous asphalt pavement has low stability, so it is applied to low traffic loads such as pedestrian ways. To overcome this problem, a material that binds asphalt and aggregate is needed. This research aims to utilize LDPE waste to improve the performance of porous asphalt mixtures. The method used is experimental by using Marshall parameters. The results of the study with the addition of LDPE and Polyurethane obtained an increase in the value of stability by 17.35% but, decreased the value of flow by 15.18% and permeability index by 12.07%. The optimum value is adding 2% LDPE and 7.5% Polyurethane so that LDPE can be used as additional material to replace some asphalt materials in porous asphalt mixtures.
Keywords: LDPE, Polyurethane, Ashpalt Mixtures
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