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All Journal JURNAL KARYA TEKNIK SIPIL
Supriyono Supriyono
Jurusan Teknik Sipil FT. UNDIP Jl. Prof. Soedarto SH., Tembalang, Semarang 50275
Civil Engineering, Building, Construction & Architecture

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PENGARUH PENAMBAHAN SASOBIT PADA WARM MIX ASPHALT TERHADAP MUTU CAMPURAN BERASPAL Eka Hadi Purwanto; Hartomo Sandi Sakti; Bagus Hario Setiadji; Supriyono Supriyono
Jurnal Karya Teknik Sipil Volume 3, Nomor 1, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Warm mix asphalt technology have possibility to makes, spreading, and compress in lower temperature than hot mix asphalt. This technology used with add the additive material named Sasobit. Because of that we did the research about mixing asphalt with Asphalt Institute methode. The asphalt degree is 4,5%, 5%, 5,5%, 6%, dan 6,5% add into Sasobit 0%, 2%, 3%, and 4% to establish mixing and solid temperature in the mix. This research compared the quality between mixing asphalt with Sasobit and mix without Sasobit as a control. Result of this research showed that decrease temperatur because of increment Sasobit 2% reduce until 6˚C, increment Sasobit 3% reduce until 7,5%, dan increment Sasobit 4% reduce until 7,8%. The other benefit from adding the Sasobit into mix asphalt is increase stability value, decrease presentage degree of utilizing asphalt, and decrease the gas emision from mixing asphalt. However, mixing with add Sasobit have lack, where the mix become more stiff and hard so that the asphalt is easier to be damage if compared with mix without Sasobit.
OPTIMALISASI KELEMBAGAAN DAN MANAJEMEN DALAM BUS RAPID TRANSIT SEMARANG Ahmad Ghoni; Haptiwi Tri Yuniar; Bambang Riyanto; Supriyono Supriyono
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Bus Rapid Transit Trans Semarang is a means of mass transportation to the transit system  that began operating since 2009 as a solution to reduce congestion in the city of Semarang. This research focuses on the optimization and management of institutional BRT Trans Semarang to improve it’s performance. The purpose of this study is to optimize the performance of the organization and management of BRT Trans Semarang with variable types of institutional cooperation BRT operations, and leadership style. Stages of the methodology to do is identify the problem, literature, comparative studies of Trans Jogja, stakeholder’s need analysis, data processing, and formulating policy recommendations. The results showed a number of conditions and institutional and management problems BLU-UPTD Terminal Mangkang as the governing institution of BRT Trans Semarang, among others: 1) Need to changes 3 old buses with 1 BRT so BRT can reduce the congestion effectively and also can incrase BRT load factor. 2) Need 20 fleets BRT to supply the passenger’s demand. So the subsidy is still needed to complete the BRT’s cost operational until the load factor reach 70%. 3) The institutional leadership style BRT is currently 69(minimum criteria is 75). While the percentage of fulfillment of expectations of leaders based employee appraisal is only 70.45(minimum criteria is 75). The recommendation to optimize the organization and management of BRT Trans Semarang are construct BLU so it has flexibility to manage substitution the old moda with BRT, to determine the cost policy that cheaper than old moda’s cost in order to increase load factor, still gets subsidy to keep quality service base on SPM. In additional needs to increase coordination and communication in institution to increase efectivity of institution’s works.
Co-Authors Ahmad Ghoni Bagus Hario Setiadji Bambang Riyanto Eka Hadi Purwanto Haptiwi Tri Yuniar Hartomo Sandi Sakti