PENGARUH PEMANFAATAN LIMBAH (BAHAN SISA) PLASTIK TERHADAP LAPIS ASPAL BETON WEARING COURSE (AC-WC) SEBAGAI BAHAN TAMBAH
Daftar Isi:
- The presence of abundance of plastic waste takes 1000 years to be decomposed perfectly by land. According to the facts, this research was proposed to improve performance of asphalt mixture by utilizing plastic waste. This is because plastic has high softening point so that it is expected to be able to increase asphalt mixture resistance against the effects of temperature and elasticity. The research was done by adding with three kinds of plastic which is plastic cup of mineral water, plastic bags, and plastic with aluminium foil with three contents that is 1%, 2%, and 3% waste in asphalt mixture. Fifteen samples of AC-WC mixture were made for each variation of standard mixture and twenty seven samples of three kinds of plastics content and all were compacted by 2x75 blows. Then, the mixtures were evaluated by terms of 6 Marshall properties, that is, stability, flow, MQ, VIM, VMA and VFA. It resulted that mixtures with plastic tend to less dense (as showed by higher air voids) and become more rigid (as showed by high stability but low flow). This indicates that the addition of plastic as additive could make the mixture becoming more rigid but porous causing it has good resistance to plastic deformation but it is more susceptible to cracking and less durable. Although the results showed that mixture with plastic was not better than conventional mixture, the use of this mixture for underlying layer like AC-WC is still possible. And this is supported by all Marshall properties on selected types (1% for plastic with aluminium foil and 2% for plastic cups and plastic bags) could fulfil the specification issued by Directorate General of Highway (Bina Marga).