Analysis of the Effect of Asbuton on Porous Asphalt Mixtures for Heavy Load Traffic

The main problem of porous asphalt was clog up the pores that caused by the deformation of pavement under vehicular loading [19–21], and the creep of asphalt [22, 23], that is difficult to solve the pore blockage caused by vehicle loads and asphalt creep [24]. Porous asphalt requirements for heavy load traffic have not been determined, especially for Marshall stability values, permanent deformation (rutting) and void volume. For this reason, a certain gradation of a mixture of aggregate and high quality asphalt is required. Modification of asphalt with several types of additives to produce high quality asphalt will be carried out in this research. 60–70 penetration asphalt and PG-76 shell asphalt were used, with several additional materials, namely: cellulose fiber (Viatop), glass fiber and asbuton B-5/20. The best results were obtained from a combination of 60–70 penetration asphalt (3.5%) with B-5/20 asphalt (5%), which resulted in a Marshal stability value of 3200–4550 kg, flow = 5–7 mm, cavity volume = 9–10%, seepage (k) = 0.4–0.7 mm/s, AFD = 0.0% and contabro loss 8.43%. so that the influence of minerals and asphalt (asbuton) on the porous asphalt mixture will be analyzed.