RACIC: Jurnal Teknik Sipil Universitas Abdurrab http://jurnal.univrab.ac.id/index.php/racic <p style="text-align: justify;">RACIC "Rab Construction Research" &nbsp;(ISSN 2527-7073) adalah Jurnal yang dikelola oleh Program Studi Teknik Sipil, Fakultas Teknik Universitas Abdurrab, yang terbit secara berkala dalam dua edisi per tahun. RACIC menerima dan mendukung penuh artikel di bidang Teknik Sipil, tetapi tidak terbatas pada: Struktur, Transportasi, Sumber daya air, Manajemen Rekayasa Konstruksi, dan Geoteknik.</p> en-US ahmad.zaki@univrab.ac.id (Ahmad Zaki) salamun@univrab.ac.id (Salamun, M.Kom) Sat, 01 Dec 2018 00:00:00 +0700 OJS 3.1.1.0 http://blogs.law.harvard.edu/tech/rss 60 PREDIKSI UMUR LAYANAN PERKERASAN JALAN AKIBAT BEBAN MUATAN LEBIH KENDARAAN ( STUDI KASUS RUAS JALAN DURI – MINAS) http://jurnal.univrab.ac.id/index.php/racic/article/view/574 <p>Overloading is a condition of a vehicle's axle load exceeding the standard load used on the pavement design assumptions or the number of operational paths before the age of the plan is reached, or often referred to as premature deterioration. and the consequence of overloading of the road will decrease the service life of the road. The axis load allowed to pass through the road is 8 tons but in fact the field of passing vehicles exceeds the limit allowed by overloaded trucks. This is evidenced by the Department of Public Works of Riau Province states that 45% of damage caused by vehicle excess burden. The purpose of the research undertaken, namely to determine the reduced service life of the road from the design life that has been determined due to vehicle load. The method obtained is by calculating the ESAL cumulative standard and ESAL existing to get Traffic Design (ESAL). From the analysis of Traffic Design (ESAL), the age of pavement is expected to end in the 7th year since the road increase or there is a reduction of 3 years from the age of the 10 year plan and the expected reduction in the remaining age of 52.60% since the road repair has ended.</p> Abu Bakar, Muhammad Idham, Indriyani Puluhulawa ##submission.copyrightStatement## http://jurnal.univrab.ac.id/index.php/racic/article/view/574 Sun, 27 Jan 2019 00:30:36 +0700 EFEK VENTURI PADA PIPA PENDISTRIBUSIAN AIR BERSIH DINAS CIPTA KARYA DAN TATA RUANG KE PASAR BELAKANG PADANG http://jurnal.univrab.ac.id/index.php/racic/article/view/617 This research aims to determine whether there is an effect on venture in the pipe and find for the speed of water, water discharge, and the character flow on a pipe. The location of pipe under research is in Belakang Padang, one of the sub-districts in Batam City. Primary data is obtained from observing directly from the rear distribution pipeline in Belakang Padang, while secondary data is obtained from Cipta Karya and Tata Ruang Belakang Padang. Based on primary and secondary data and through the calculation process, the results of the speed in the 4 inch pipe are 2,469 m/s, the 2 inch pipe is 9,896 m/s, and the pipe ¾ is 71,3929 m/s. The water discharge in the 4 inch pipe is 0,02 m3/s, the 2 inch pipe is 0,01999 m3/s, and the ¾ inch pipe is 0,01999 m3/s. The flow properties that obtained by calculation of Reynolds Number in the 4 inch pipe are turbulent with a value of 139361,33, in the 2 inch pipe is 279287,11 which means the turbulent flow, and pipe ¾ is 755574,86 with turbulent flow. Fealy Chia ##submission.copyrightStatement## http://jurnal.univrab.ac.id/index.php/racic/article/view/617 Sun, 27 Jan 2019 00:31:25 +0700 Analisa ANALISA FAKTOR-FAKTOR PENYEBAB CHANGE ORDER PADA PROYEK PENINGKATAN JALAN INSPEKSI JALAN DUYUNG (LANJUTAN) http://jurnal.univrab.ac.id/index.php/racic/article/view/618 <p><strong><em>A</em></strong><strong><em>BSTRACT</em></strong></p> <p><em>Change Order (CO) is a change of work in a construction project. CO is very difficult to avoid and if this change order occurs it can harm the project. In view of its relevance, the project for upgrading the road for the duyung road inspection (continued) has a high risk of change orders. This must be minimized from the beginning of the project work, one of which is by identifying the fundamental factors that cause change order on this project, using descriptive analysis methods. Based on literature review and interviews, this study identified 11 factors causing change order. Data that has been collected through questionnaires with a total of 50 respondents involved in this study. These respondents were all people who worked on the project. Each respondent was asked to express his opinion about frequency and the impact caused using a Likert scale 1-5. Two factors are classified as the most important factors causing change contract orders from the most dominant ones, namely physical conditions in the field (1) and changes in scope of work (2) and non-dominant factors, namely the problem of the supervisor consultant (1) and the problem of the contractor (2). This descriptive analysis also shows a positive and statistically significant correlation</em>.</p> <p><em>Keywords: Change Order, Project, Construction, Water Building, Descriptive Analysis</em></p> Novia Siti Rohana ##submission.copyrightStatement## http://jurnal.univrab.ac.id/index.php/racic/article/view/618 Sun, 27 Jan 2019 00:32:00 +0700 STUDI EKSPERIMENTAL CAMPURAN BETON UNTUK MENINGKATKAN MUTU BETON DENGAN BAHAN TAMBAH LIMBAH AMP DAN VARIASI AGREGAT DARI RIAU http://jurnal.univrab.ac.id/index.php/racic/article/view/619 <p>Pemanfaatan limbah menjadi sesuatu yang bermanfaat adalah hal yang sangat penting dalam kehidupan ini, sehingga limbah tidak lagi menimbulkan masalah lingkungan sosial masyarakat namun bisa digunakan menjadi hal yang berguna. Di bidang teknik sipil telah banyak limbah dijadikan sebagai bahan tambah campuran beton, misalnya penelitian yang telah dilakukan oleh (Munir, 2008) tentang Pemanfaatan abu batu bara (fly ash) untuk hollow block yang bermutu dan aman bagi lingkungan. Di Kabupaten Kampar terdapat beberapa perusahan-perusahan yang memproduksi AMP (<em>Asphal Mixing Plant</em>) atau unit produksi campuran beraspal, misalnya PT. Vira Jaya yang menghasilkan jumlah abu terbang (fly ash) atau limbah amp yang cukup besar, dimana hasil limbah tersebut tergantung jumlah produksi amp, makin besar produksi amp maka semakin besar pula limbah yang dihasilkan. Tujuan penelitian ini apakah fly ash hasil limbah produksi AMP dapat mempengaruhi kuat lentur beton bahan dengan Bahan tambah fly ash (limbah amp) sebagai Bahan Perkerasan Kaku (Rigid Pavement). Dan Untuk mengetahui komposisi campuran beton dengan dengan fly ash limbah amp yang tepat untuk mendapatkan kekuatan (kuat lentur) beton optimum pada perkerasan kaku (rigid pavement). Dalam penelitian ini digunakan salah satu bahan mineral tambahan pozzolan berupa fly ash hasil limbah produksi AMP. Dengan penggunaan fly ash hasil limbah amp di teliti sebagai bahan pengganti semen pada campuran beton yang diaplikasikan pada perkerasan kaku (Rigid Pavement). Penelitian ini menggunakan metode eksperimen dengan total benda uji 24 buah. untuk benda uji kuat lentur berbentuk balok dengan ukuran 60x15x15 cm dan berbentuk silinder 15 x 30cm dengan variasi kadar fly ash 0%, 5%, 10%,15% yang di uji pada umur 7 dan 28 hari dengan fas sebesar 0.38. Masing-masing variasi berjumlah 3 benda uji. Penggunaan Pasir Urug dan <em>fly ash</em> hasil pembakaran AMP memenuhi syarat&nbsp; untuk campuran beton Fs 45. Hasil optimum didapat pada penambahan 5% dengan nilai kuat lentur 70.07 % pada umur 7 hari dan sebesar 103.45 % pada Umur Beton 28 Hari. Sedangkan nilai kuat tekan 363,62 kg/cm<sup>2 </sup>pada umur 7 hari dan 460,09 kg/cm<sup>2 </sup>pada umur 28 hari. Jika di analisis pada pengganti semen 5 % adalah titik optimum untuk penambahan fly ash. Penggunaan <em>fly ash</em> dengan variasi diatas 5%&nbsp; pada campuran&nbsp; tersebut tidak lagi sebagai pozzolan yang dapat membentuk senyawa yang bersifat mengikat akan tetapi fungsinya menjadi agregat halus dalam campuran beton, akibat pemakaian <em>fly ash</em> yang berlebihan menyebabkan limbah <em>fly ash</em> tidak habis bereaksi dengan air dalam campuran beton.</p> Husnah Husnah husain ##submission.copyrightStatement## http://jurnal.univrab.ac.id/index.php/racic/article/view/619 Sun, 27 Jan 2019 00:32:33 +0700 Kadar Optimum Aspal Pen 60/70 dan Bahan Modifikasi Asbuton Murni T5/20 Dengan Filler Asbuton T5/20 terhadap Kinerja Campuran http://jurnal.univrab.ac.id/index.php/racic/article/view/639 <p><em>In line with the increase in road length, the asphalt demand in Indonesia is increasing as well. Asbuton can be used as a binder on pavement to replace oil asphalt. The levels of asphalt contained in asbuton is variated between 10% -40%. To increase the utilization of asbuton in Indonesia, the research on modification of asbuton in the mixture was carried out. This study aims to determine the optimum levels of bitumen pen 60/70 and material modification of pure asbuton T5 / 20 with filler asbuton T5 / 20 against on mixture performance. This research was carried out by adding optimum asbuton filler level of 2.01% on the variation of pure T5 / 20 asbuton by 0%, 10%, 12%, 14%, 16%, 18%, 20% and 30% with a compaction temperature of 155 <sup>0</sup>C in mixture. Based on the results of the Marshall test, the performance of the modified material mixture that meets the general specification requirements on Bina Marga 2010 revision 3 which is the optimum level of extraction of asphalt T5 / 20 by 10% with filler asbuton T5 / 20 of 2.01%. This is evidenced by the Stability value of 2616 kg, the melting value of 2.85 mm, MQ value of 918 kg / mm, VIM value of 4.94%, VMA value of 15% and VFA value of 66.11% that meets the specification requirements.</em></p> fitra ramdhani ##submission.copyrightStatement## http://jurnal.univrab.ac.id/index.php/racic/article/view/639 Sun, 27 Jan 2019 00:33:11 +0700