cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
semesta_teknika@umy.ac.id
Editorial Address
Jln. Brawijaya Tamantirto Kasihan Bantul 55183 Indonesia
Location
Kab. bantul,
Daerah istimewa yogyakarta
INDONESIA
Semesta Teknika
Published by Universitas Muhammadiyah Yogyakarta
ISSN : 1411061X     EISSN : 25025481     DOI : https://doi.org/10.18196/st
Core Subject : Engineering,
Engineering
SEMESTA TEKNIKA is a reputable refereed journal devoted to the publication and dissemination of basic and applied research in engineering. SEMESTA TEKNIKA is a forum for publishing high quality papers and references in engineering science and technology. The Journal is published by the Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, INDONESIA. Copyright is by the publisher and the authors. The Journal is issued in electronic form and also issued in printed form as annual volume for the contributors only. The journal contains original research papers, review articles, short notes and letters to the editors. The topics of interest include modeling, experimental, analytical and numerical investigations on the mechanical, physical, chemical and mineralogical properties of material, developing the prototype/instrument, technology and construction process. Topic of management in industry and civil construction is also considered. SEMESTA TEKNIKA receives manuscripts from the contributor written in the Indonesian and English. Manuscripts submitted to the journal for publication must not have been previously published or is under consideration simultaneously by any other publication. Manuscripts submitted to SEMESTA TEKNIKA will be reviewed Peer Reviewers local and foreign.
Arjuna Subject : -
Articles 11 Documents
 1   2 
Search results for , issue " Vol 16, No 2 (2013): NOVEMBER 2013" : 11 Documents clear
Evaluasi Tebal Lapis Tambah Perkerasan Lentur Menggunakan Metode Bina Marga (Pd T-05-2005-B) dan Asphalt Institute (MS-17) (Studi Kasus Jalan Yogyakarta- Bantul) Haris, Ilham; Rahmawati, Anita
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The overlay is the addition of pavement layer thickness which is placed on the existing pavement construction to increase the strength and to serve the planned traffic during the specified period. This research is a case study conducted in Yogyakarta-Batas Kota Bantul road using Bina Marga and Asphalt Institute method. Although a new highway is upgraded, it is possible that the road construction will be damaged in a relatively short time. With this consideration, it is necessary to evaluate the thickness of pavement overlay. The length of the evaluated road segment was divided into three (3) sections, namely Segment I (Sta 4+000 - Sta 5+800), Segment II (Sta 6+000 - Sta 7+800) and Segment III (Sta 8+000 - Sta 10+320) to get the pavement thickness uniformity level. Based on the results of the analysis with the Bina Marga method (Pd T-05-2005-B), the thickness of the layers was added for segment I (6.942 cm), segment II (6.618 cm), and segment III (6.055 cm). While in the calculation using Asphalt Institute (MS-17) method, it was obtained that there was additional layer thickness 3.556 cm in segment I, 3.048 cm in segment II, and 2.790 cm segment III. The result of overlay thickness correction of Bina Marga method using AASHTO equivalent shows the number of 2.794 cm segment I, 2.470 cm in segment II, and 1.907 cm in segment III.
Analisis Pengaruh Metode Taman Hujan dalam Menurunkan Debit dan Kekeruhan Air Limpasan Permukaan Jufianto, Irfan; Ikhsan, Jazaul; Barid, Burhan
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The alteration in land use causes the loss of infiltration areas replaced by rigid pavement yet demand for groundwater is increasing thus unbalance in hydrology cycle occurred and water became the problem for human as the problem for this country nowadays. One of the solutions to keep the storage of groundwater is to make the rain garden in the area near the run-off sources. Nonetheless studied about rain garden only focus on the effect of pollution in the river and study about the impact of reducing run-off debit and turbidity has not been explored yet. Three infiltration models that had been used for this research were infiltration model with soil-only, rain garden, and the rain garden with infiltration hole. The results presented by the study were compared to get the efficient value from each infiltration model in reducing debit and turbidity in the unsaturated and saturated soil. The result of this study showed that the rain garden model with infiltration hole performed better result with unit time reliability for 3 minutes and higher efficiency value of 54.17% on unsaturated soil and 53.81% on saturated soil. It can also reduce the suspension in the surface run-off until 0 mg/l.
Aplikasi Value Engineering dengan Metode“Paired Comparison” pada Struktur Pelat Beton Sutrisno, Budi; Priyo, Mandiyo
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research studied the application of value engineering with a paired comparison method with the case study in Tourism Building of Sleman Regency, Special Region of Yogyakarta. Several steps need to be carried out which consisted of information, creativity, a paired comparison method analysis, development and recommendation for the new design of a concrete plate. The concrete plate was redesigned using 2 alternatives. The first alternative was reducing the thickness of the plate from 12 cm to 10 cm without changing the concrete quality. The second alternative was using precast concrete. The result shows that the first alternative will save project budget to Rp. 10,569,562.-. Moreover, by using precast, the budget for the project will be increased by Rp.4,208,058.-. According to the paired comparison method and alternative comparison evaluation matrix, the second alternative has the highest percentage (59%), while first alternative and current condition only have 25% and 16% respectively. The second alternative was chosen to be applied to replace the existing design since it will gain more profit than any other which were included concrete quality, time, controlling, weather and human resources.
Analisis Kinerja Ruang Parkir di Pelabuhan Ferry International Batam Center Adly, Emil
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The growth of motorised vehicle caused the inconvenient to find the parking space in International Ferry Harbour of Batam Center. In this study, the survey was conducted to calculate the number of the motorised vehicle that was going into and out from the harbour especially for two and four-wheeled vehicles on Saturday until Tuesday from 04.00 AM to 04.00 AM WIB. Peak hour for two-wheeled vehicle occurred on Sunday at 12.30-13.29 WIB with numbers of vehicles was 511 vehicles and with the parking lot available is 400 spaces. Thus the parking index for two-wheeled vehicles was 129.2%. Moreover, peak hour for four-wheeled occurred on Sunday at 12.00-12.29 WIB with the number of vehicles was 491 vehicles and with the parking lot available is 380 spaces. Thus the parking index for four-wheeled vehicles was 127.7%. Data on vehicles parking number and parking duration figured that four-wheeled vehicles were the highest number which was 8957 vehicles with the duration of parking less than 1 hour. Furthermore, the highest number of two-wheeled vehicles parking was 3854 vehicles with the duration less than 1 hour. The average number of parking for two-wheeled vehicles and four-wheeled vehicles were 1032 vehicles and 2277 vehicles respectively.
Pengaruh Campuran Abu Sekam Padi terhadap Kuat Tekan Paving Block Waluyo, Budi; Pujianto, Asat; Soebandono, Bagus
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Rice husk is an abundant by-product of rice milling results, and so far only used as a fuel for combustion red stones, burning for cooking or thrown away. Rice husk ash (RHA) is a waste material of rice that has special properties. This material also contains chemical compounds that can be pozzolan, which contains silica (SiO2), a compound which, when mixed with cement and water can be used to enhance the compressive strength and tensile strength of concrete while silica is a chemical compound that is dominant in the rice husk ash. This study aimed to compare the results of the average compressive strength of the normal paving block with the added ingredient of rice husk ash, assess the effect of the addition of rice husk ash to the compressive strength and prices comparison between the paving block and normal paving block with the added ingredient of rice husk ash. In this study, rice husk ash serves as a replacement for cement additives with a variation of 0%, 30%, 35% and 40% by weight of cement in comparison 1pc: 10ps, 1pc: 13ps and 1pc: 15ps. The results showed that the paving blocks with a mixture of rice husk ash in comparison 1pc: 10ps produce optimum compressive strength with a mixture of rice husk ash 16.6% in the amount of 32.709 MPa. Furthermore in comparison 1pc: 13ps, paving block compressive strength values obtained with the optimal mix of rice husk ash rice 13.0% amounting to 23.709 MPa. Finally, in comparison 1pc: 15ps, paving block compressive strength values obtained with the optimal mix of rice husk ash 15.0% amounting to 17.260 MPa.
Pemanfaatan Fly Ash dan Alkali Resistant Glass Fibre (ARG) dalam Pembuatan Paving Block Soebandono, Bagus
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The paving block is an alternative to the use of pavement layer that is safe, strong and easy to installation and maintenance. Pavement paving block also can be produced both mechanically and manually. The added fly ash was a waste material from coal combustion in the steam power plant furnace in the form of fine, round, pozzolanic and fibre-resistant. Alkali Resistant Glass Fibre (ARG) which is shaped like a rope 18-36 mm long was added into the paving block with mixed compositions 1 Pc:10 Ps that aims to strengthen the compressive strength and flexibility of the paving block. This research was used 15 samples with mixture variation of fly ash 19% and fiber 0,25%, 0,5%, 0,75% and 1%. Based on the results of laboratory analysis, paving block (1 Pc: 10 Ps) with the addition of fly ash 19% and ARG 0.6% yielding a maximum compressive strength of 18.35 MPa. The addition of fibres with fly ash mixture was also able to increase the compressive strength of the paving block.
Analisis Kelayakan Aspek Ekonomi dan Kapasitas Biodigester Model Fix Dome Plant (Studi Kasus Biodigester di Botokenceng, Yogyakarta) Monica, Fanny
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Beside faeces and urine from cattle’s digestion, ruminants produce highly enough methane gas (CH4). This Methane Gas is one of the gases that influence the global warming and ozone decay, with rate 1% per year and still increasing. Biogas reactor is one of the solutions to solve those problems. This research aims to find out the capacity and economic feasibility of biodigester model Fix Dome Plant located in Botokenceng, Banguntapan, Yogyakarta. Primary data which are measurements and documentation, as well as the sketch (AutoCAD) and budget plan as secondary data, were analysed in this study. The formulas to obtain the capacity of biodigester are the equation of cow’s faeces volume and faeces solvent volume. Meanwhile, Benefit Cost Ratio (B/C) and Break Even Point (BEP) were used for economic analysis. The results of this study show that the average debit was 140.7 litres/day, with average speed for different height of flume was 4.0225 m/day. Furthermore, the operational debit was 84.4 litres/minute, with average speed for varying height of flume was 2.36 m/minute. Biodigester capacity based on digester size was 4.22 m3 which can contain faeces from 2.67 cows so that the volume needed for the biodigester was 6.33 m3 since there are four cows. According to the budget plan, the investment to build the biodigester was Rp 12,821,354.50.-. The budget earned from 4 cows was Rp 6,532,165.-/year, while the expenses were Rp 1,466,160.-/year. The result of B/C analysis was 4.45 (B/C > 1), and BEP analysis occurred at the 7th year with total income was Rp 37,925,750.-.
Aplikasi Sistem Manajemen Mutu ISO 9001:2008 untuk Menganalisis Kinerja Pabrik Readymix Concrete Utami, Sholaekhah Ambar; Priyo, Mandiyo
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

ISO 9001:2008 define the requirements and recommendation for design and valuation of the quality management system to ensure that the corporation provides the products (goods/services) that meet the needs and also to increase the productivity efficiently. This study aimed to analyse the corporation performance in quantitative and qualitative, to discover the impact and the application of quality management system based on ISO 9001:2008 in PT. Jaya Ready Mix. The method used in this research was descriptive method and data were collected by field observation, interview with staff in technical and quality department. The secondary data also obtained from the record of the corporation. The results show that qualitative and quantitative measurement presented improved performance. It means that both show the parallel trend. Thus it can be concluded that application of quality management system ISO-9001-2008 by PT Jaya Readymix are already in the right condition. The impact of this application was the increasing of quality continuously such as the procedure for saving records, work instruction and controlling in fabrication for ready-mix concrete and also the documents for quality manual, business practices, operating procedures, standards, descriptive information and quality record.
Pengaruh Faktor Air Semen terhadap Kuat Tekan Beton dengan Agregat Batu Apung Pujiono, Agus; Riyanto, Dwi; Pujianto, Asat; Soebandono, Bagus
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Lightweight concrete is concrete that has a unit weight less than 1800 kg/m3. Pumice can be used to make lightweight concrete as the replacement of coarse aggregate in concrete mixtures. This research aimed to discover the compressive strength of lightweight concrete with water-cement ratio and the impact of the unit weight of the concrete. This research was divided into two types of method. Firstly, the concrete was produced with the water-cement ratio of 0.30, 0.32, 0.34, and 0.36 and additional superplasticiser 2% for each variation. Secondly, the concrete was created with water-cement ratio 0.36, 0.38, 0.40 and 0.42 without admixture. Samples were tested for compressive strength after 28 days and calculated the unit weight of the concrete with pumice as the replacement of coarse aggregate. The results of this study indicated that for the first method, the maximum compressive strength value of lightweight concrete with pumice and additional superplasticiser was 11.2880 MPa with water-cement factor 0.30 and unit weight 1691.59 kg/m3. While for the second experiment, results show that the maximum compressive strength of lightweight concrete with pumice without admixture reached at 10.4620 MPa with a water-cement ratio at 0.38 and unit weight 1692.74 kg/m3.
Pengaruh Penambahan Plastik High Density Polyetilene (HDPE) dalam Campuran Hot Rolled Sheet Wearing Course (HRS-WC) terhadap Parameter Marshall, Kuat Tekan dan Kuat Tarik Belah Akmus, Pepi Nega
Semesta Teknika Vol 16, No 2 (2013): NOVEMBER 2013
Publisher : Semesta Teknika

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In this study, plastics High-Density Polyethylene (HDPE) were used as an additional ingredient of asphalt for HRS-WC mixtures by using a variation of the plastic content of 0%, 2%, 4%, 6% to the asphalt weight. Bitumen content obtained from the optimum bitumen content of 7.5%. The purpose of this research is to examine and to compare the Marshall characteristics, compressive strength and split tensile of HRS-WC mixture. The results showed that the addition of HDPE plastic provide a significant influence on the marshall characteristic, split tensile strength and compressive strength. Asphalt stability with the addition of HDPE by 2%, 4% and 6% compliant with the specifications of marshall stability results respectively amounted to 2589.40 kg, 2257.13 kg and 2385.16 kg.

Page 1 of 2 | Total Record : 11

 1   2 

Filter by Year

2013 2013


Reset
Filter By Issues
All Issue Vol 26, No 1 (2023): MEI Vol 25, No 2 (2022): NOVEMBER 2022 Vol 25, No 1 (2022): MEI 2022 Vol 24, No 2 (2021): NOVEMBER 2021 Vol 24, No 1 (2021): MEI 2021 Vol 24, No 2 (2021): NOVEMBER Vol 23, No 2 (2020): NOVEMBER 2020 Vol 23, No 1 (2020): MEI 2020 Vol 22, No 2 (2019): NOVEMBER 2019 Vol 22, No 1 (2019): MEI 2019 Vol 21, No 2 (2018): NOVEMBER 2018 Vol 21, No 2 (2018): NOVEMBER 2018 Vol 21, No 1 (2018): MEI 2018 Vol 20, No 2 (2017): NOVEMBER 2017 Vol 20, No 2 (2017): NOVEMBER 2017 Vol 20, No 1 (2017): MEI 2017 Vol 20, No 1 (2017): MEI 2017 Vol 19, No 2 (2016): NOVEMBER 2016 Vol 19, No 2 (2016): NOVEMBER 2016 Vol 19, No 1 (2016): MEI 2016 Vol 19, No 1 (2016): MEI 2016 Vol 18, No 2 (2015): NOVEMBER 2015 Vol 18, No 2 (2015): NOVEMBER 2015 Vol 18, No 1 (2015): MEI 2015 Vol 18, No 1 (2015): MEI 2015 Vol 17, No 2 (2014): NOVEMBER 2014 Vol 17, No 2 (2014): NOVEMBER 2014 Vol 17, No 1 (2014): MEI 2014 Vol 17, No 1 (2014): MEI 2014 Vol 16, No 2 (2013): NOVEMBER 2013 Vol 16, No 2 (2013): NOVEMBER 2013 Vol 16, No 1 (2013): MEI 2013 Vol 16, No 1 (2013): MEI 2013 Vol 15, No 2 (2012): NOVEMBER 2012 Vol 15, No 2 (2012): NOVEMBER 2012 Vol 15, No 1 (2012): MEI 2012 Vol 15, No 1 (2012): MEI 2012 Vol 14, No 2 (2011): NOVEMBER 2011 Vol 14, No 2 (2011): NOVEMBER 2011 Vol 14, No 1 (2011): MEI 2011 Vol 14, No 1 (2011): MEI 2011 Vol 13, No 2 (2010): NOVEMBER 2010 Vol 13, No 2 (2010): NOVEMBER 2010 Vol 13, No 1 (2010): MEI 2010 Vol 13, No 1 (2010): MEI 2010 Vol 12, No 2 (2009): NOVEMBER 2009 Vol 12, No 2 (2009): NOVEMBER 2009 Vol 12, No 1 (2009): MEI 2009 Vol 12, No 1 (2009): MEI 2009 Vol 11, No 2 (2008): NOVEMBER 2008 Vol 11, No 2 (2008): NOVEMBER 2008 Vol 11, No 1 (2008): MEI 2008 Vol 11, No 1 (2008): MEI 2008 Vol 10, No 2 (2007): NOVEMBER 2007 Vol 10, No 2 (2007): NOVEMBER 2007 Vol 10, No 1 (2007): MEI 2007 Vol 10, No 1 (2007): MEI 2007 Vol 9, No 2 (2006): NOVEMBER 2006 Vol 9, No 2 (2006): NOVEMBER 2006 Vol 9, No 1 (2006): MEI 2006 Vol 9, No 1 (2006): MEI 2006 Vol 8, No 2 (2005): NOVEMBER 2005 Vol 8, No 2 (2005): NOVEMBER 2005 Vol 8, No 1 (2005): MEI 2005 Vol 8, No 1 (2005): MEI 2005 More Issue