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Journal : MEDIA KOMUNIKASI TEKNIK SIPIL

Kuat Tekan Mortar dengan Berbagai Campuran Penyusun dan Umur Adi, Rudi Yuniarto
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 17, Nomor 1, PEBRUARI 2009
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.866 KB) | DOI: 10.14710/mkts.v17i1.3420

Abstract

In the implementation of construction, during this type of mortar of the new indicator is based on water-resistant and not waterproof. However, besides the function to actually hold water, mortar functions also have a burden. Often required in the implementation of that day in the walls of a maximum of 1 meter regardless of the composition of the mortar mix used. This is because the lack of discussion of the strength of mortar. The results of this study conclude that a strong press and mortar akan increased sharply since the age of 0 to 12 days, and a strong improvement over the press and mortar at the age of 13 days to 90 daysKeywords: Mortar, composition, mixture, strong, press, agePermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3420[How to cite: Adi, R.Y. (2009). Kuat Tekan Mortar dengan  Berbagai Campuran Penyusun dan Umur, Jurnal Media Komunikasi Teknik Sipil, 17 (1): 67-84]
Analisa Kinerja Pelayanan Angkutan Bus Sedang Jurusan Bukit Kencana – Mangkang Adi, Rudi Yuniarto
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 16, Nomor 1, PEBRUARI 2008
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.501 KB) | DOI: 10.14710/mkts.v16i1.3666

Abstract

For supporting the activity of society in Semarang, a city with very large area and population spread, so it is required transportation facility much. With the different society economy grade condition in fulfillment transportation facility necessity, one of the facilities required is Public transportation. Up to now the necessity of load public transportation in Semarang has been served by some kinds of vehicle with different destination (route). One of destinations which is being developed is public transportation by using medium bus with destination of Bukit Kencana to Mangkang. The purpose of this research is to find out the load factor, frequency, headway, keeping watch (waiting) time, vehicle speed, time range of journey and the vehicle age which operate with destination of Bukit Kencana to Mangkang. Whereas the objective of the research is to evaluate the way in which public transportation using medium bus with destination Bukit Kencana to Mangkang operates. The research method used is field research by collecting data relating with the way in which the service operation including load factor, frequency and headway, keeping watch time, speed, time trip, and the age of vehicle. The result of the survey and the data analysis present that the way in which public transportation using medium bus with destination of Bukit Kencana to Mangkang operation is good enough with the following conditions: Maximum keeping watch time reaches 31 minutes, The sum of served passengers on holiday is 281 persons/day, Vehicle utilization is 181, 67 km/day, Availability on holiday is 64,29 %, Speed on an average is 20,50 – 23,15 km/hour , Time range of journey is 86,25 – 91,11 minutes, Mean of Load factor Bukit Kencana to Mangkang is 62,06 % and Mean of Load factor Mangkang to Bukit Kencana is 63,61 %, Vehicle age on an average is 5 years. Keywords : Performance, services, public transportation, medium bus, Bukit Kencana to MangkangPermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3666[How to cite: Adi, R.Y. (2008), Analisa Kinerja Pelayanan Angkutan Bus Sedang Jurusan Bukit Kencana – Mangkang, Jurnal Media Komunikasi Teknik Sipil, Tahun 16, No. 1, pp. 61-78]
Perilaku dan Kekuatan Sambungan Kolom pada Sistem Beton Pracetak Yuniarto Adi, Rudi; Nurhuda, Ilham; Sukamta, Sukamta; Fitriani, Intan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 20, Nomor 1, JULI 2014
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (856.448 KB) | DOI: 10.14710/mkts.v20i1.9241

Abstract

At this time, the architecture and design of the existing floor plan often changes according to the needs and tastes of the owner in accordance with the changing times. This research was conducted as precast concrete structures become even more important with the increase in man's desire to change the design of his home without spending enormous cost. This study aims to investigate the stiffness and study the behavior of precast concrete between monolith column with no connections and the column with connection. The connection used is dry joint using a plate and screw nut. The results obtained are the stiffness of the test specimen column with no connections is smaller than the test object column with connection. The modulus of elasticity of the column without a connection greater than the column with connection. Cracks that occurred in the test object columns without connection occurs faster than the test object columns with connection and both, flexural cracks occur first and then cracked in shear.
Pengaruh Substitusi Semen dengan Semen Slag pada Mortar terhadap Kebutuhan Air dan Waktu Ikat, dan Peningkatan Kuat Tekan Mortar pada Umur 14 hari dan 28 Hari Adi, Rudi Yuniarto; Rizqi, Safira Yulia; Subagyo, Sie Alexander Patrick; Han, Ay Lie
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 26, Nomor 2, DESEMBER 2020
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.702 KB) | DOI: 10.14710/mkts.v26i2.31691

Abstract

The use of industrial waste as a component of nowadays building material has become of major importance due to the underlining of environmental and sustainability issues. Among these materials is Ground Granulated Blast Furnace Slag (GGBFS), often referred to as slag-cement. The material is a residue produced during the steel refining process. The cementitious nature of the product makes it most suitable for ordinary Portland cement (PC) substitution. However, the behavior of this slag-cement in terms of development time and strength has not been defined in great details. In the construction industry, time is of major importance, a prolonged hydration process could delay the overall process. This research work focused on the setting time and strength response of slag-cement in mortar. The ratio of mortar constituent of cement-to-sand was 1 : 3. The percentage of slag-cement substitute to PC was 0%, 25%, 50% and 75% to the cement weight. The compressive strength was tested at the age of 14 days and 28 days. The results of the analysis showed that at a 25% slag-cement substitution a very significant increase in strength was shown. The increase was more pronounced at the age of 28 days when compared to 14 days and recorded to be 31.90%. As for the 50% and 75% slag-cement substitution, no significant increase in strength improvement was noticed. The test results showed a 2.66% enhancement for the 50% slag- cement substitution and a 2.45% increase for a 75% slag-cement replacement. The study also showed that slag-cement required a higher water-cement factor for the normal consistency