Abstract:
In design asphalt hotmix, bitumen and aggregate mixing temperature and compaction temperature has an important role in determining the performance of the mixture. The temperature of mixing has a role in the process of resurfacing asphalt on aggregate, while the compaction temperature has a role in compaction density of asphalt hotmix. The best of mixing and compaction temperature, performance of the asphalt mixture will be better. Asphalt mixture designed according to Spesifikasi Umum Bina Marga in 2010. The gradient mixture is use of Laston AC-BC smooth gradation. Variation of mixing and compaction temperature is use of 160/146°C, 170/156°C, 180/166°C, 190/176°C, and 200/186°C. To find the optimum bitumen content, sample made with bitumen content of 4,5%, 5%, 5,5%, 6%, and 6,5% from the weight of sample. Each variation temperature and bitumen content is made 3 (three) of the samples. Test result and analysis Marshall of phase I acquired KAO to temperature variation II (170/156°C) is 5,55%, temperature variation III (180/166°C) is 5,5%, temperature variation IV (190/176°C) is 5,45%. Variation temperature I (160/146°C) and variation temperature V (200/186°C) did not values obtained KAO. Phase II testing is to test Marshal in the condition of KAO by the standard and immersion methods. Samples total of 18 pieces. Test result and analysis Marshall of phase II obtained recommendation mixing temperature 170°C and for compaction temperature 156°C with mixing and compaction temperature tolerance is ± 5°C. Mixing and compaction temperatures obtained after analyzing the test result of Marshall and Marshall characteristics stage II suck as test content weight of specimen, VMA, VIM, VFA, stability, flow, MQ, CAD, and IKS.
