ANALISIS RESAPAN ASPAL POROS YANG MENGGUNAKAN ASPAL MINYAK SEBAGAI BAHAN PENGIKAT

Abstract

Indonesia is a tropical region, which have high rainfall intensity in a long time, so it is vulnerable to flooding. water left on the road surface can cause the aquaplaning case, water will be splashed out when the vehicle passing and will interfere the driver's view of the obstacles in front of the vehicle which could cause an accident. Road accidents can be reduced by use surface layer of asphalt porous, because the road surface will be rough to be a great skid resistance and the vehicle doesn???t slip out of the path movement. Beside that porous asphalt would form a cavity strands in the mix due to the dominance usage of coarse aggregate so that a plot cavity strands drainage and surface water will not stay on the road when it rains. Some states have set the standard for design composition to aggregate open gradation and one of them is Japan. The problem is about the effectiveness usage of open graded Japanese version can support the performance of Porous asphalt which using liquid asphalt. To test the performance of the porous asphalt, research has been carried out in the laboratory by making the specimen using the Japanese version of the open gradation as many as 84 pieces with 7 variations in asphalt content. From the test results obtained with the porous asphalt characteristics cantabro loss value ranges from 4.06% - 44.47%, porosity between 13.92% - 19.80%, and the permeability coefficient is 0.08 cm / sec - 0.17 cm / sec. Binder drain-down is obtained between 0.01% - 0.15% and marshall stability ranged from 733.19 kg - 1168.62 kg. KAO of the test results is then used to sample the rainfall simulation tests to compare the vertical infiltration and runoff. After testing the result that the simulated rainfall intensity up to 531.84 mm / hour, the water seeped of porous asphalt samples amounted to 91.6% vertically and horizontally of 8.4%. This indicates that the greatestrainfall occurs is still effective to reduce aquaplanning and still maintain the road surface roughness, especially during the rainy