Riswanto, Riswanto (2025) Analisis Pengaruh Lama Rendaman Air Tawar Dan Air Laut Terhadap Karakteristik Perkerasan Aspal Beton Ac – Wc Menggunakan Aspal Penetrasi 60/70 Dan Bahan Tambah Plastik Hdpe Bekas. Other thesis, Universitas Islam Riau.

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Abstract

Aggregate is the main component in road pavement structures, of which 90% - 95% requires aggregate. Aggregates are grains of crushed stone, gravel, sand and other minerals that are sourced from nature (Sukirman, 2007). The aim of this research is to determine the Marshall characteristics of the AC-WC asphalt concrete mixture using 60/70 penetration asphalt and used HDPE plastic additives as a substitute for fine aggregate and to determine the effect of freshwater and seawater immersion. This research method uses the Marshall test on AC-WC asphalt concrete pavement and used HDPE plastic as a substitute for fine aggregate in the total aggregate weight. Substitution of fine aggregate with used HDPE plastic was carried out at optimum asphalt content (OAC) with variations of 0%, 0.5%, 2%, 3.5% and 5%. From the test results on AC - WC asphalt concrete pavement and used HDPE plastic as a substitute for fine aggregate, it can increase the stability, flow and Marshall Quotient (MQ) values as the content of used HDPE plastic increases. The effect of fresh water immersion on AC-WC asphalt concrete pavement using 60/70 penetration asphalt and used HDPE plastic additives as a substitute for fine aggregate. The ideal content of used HDPE plastic is 2% which can increase the value of stability and flow. ) and Void Filled Asphalt (VFA) with values of 1380 kg, 3.71 mm and 71.59% respectively. On the other hand, the effect of sea water immersion on AC-WC asphalt concrete pavement using 60/70 penetration asphalt and used HDPE plastic additives as a substitute for fine aggregate obtained the ideal used HDPE plastic content of 2% but the stability, flow and Void Filled Asphalt (VFA) showed a decrease with values of 1198 kg, 3.16 mm and 70.65% respectively. Keywords : HDPE, Water, Fresh, Sea, Marshall

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