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Contact Name
agata iwan candra
Contact Email
iwan_candra@unik-kediri.ac.id
Phone
+62811308010
Journal Mail Official
iwan_candra@unik-kediri.ac.id
Editorial Address
Jl. Selomangleng 1 Gedung A no.110 - KEDIRI 64115 JAWA TIMUR - INDONESIA
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Kota kediri,
Jawa timur
INDONESIA
Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS)
Published by Universitas Kadiri
ISSN : -     EISSN : 26217686     DOI : http://dx.doi.org/10.30737/jurmateks
Core Subject : Engineering,
JURMATEKS (Jurnal Mahasiswa Teknik Sipil) diterbitkan oleh Program Studi Teknik Sipil, Fakultas Teknik, Universitas KADIRI untuk menampung hasil penelitian, tugas akhir maupun tugas proyek mahasiswa teknik sipil di lingkungan Universitas KADIRI.
Articles 313 Documents
Pemanfaatan Limbah Galvalum Sebagai Substitusi Aggregat Kasar Pada Jobmix Beton Muhammad Bahrudin; Agata Iwan Candra; Sigit Winarto
Jurnal Manajemen Teknologi & Teknik Sipil Vol 3, No 2 (2020): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (658.674 KB) | DOI: 10.30737/jurmateks.v3i2.1152

Abstract

Concrete is one of the construction materials that is widely used. Currently, variations in concrete are being studied. Galvalum waste has high tensile properties but is mild. Its lightweight properties are expected to reduce the weight of the concrete itself. The purpose of this study is to find out the value of strong press, absorption, weight type (E), degree of saturation (Sr), moisture content (Wc), and porosity of the addition of galvalume waste. The method used is a experimental method. Variations in galvalum waste substitution used are 50% and 100% of the aggregate weight is roughT the sample used in the form of a cylinder size of 15cm x 30 cm with the initial quality of fc' 18.67 Mpa. The results of the strong press test showed that the galvalum waste subtitution has not been able to exceed the initial quality of the plan. The highest test result was obtained at a percentage of 50% with a strong press score of FC' 17.94 Mpa. In the percentage, absorption test results are 0.010%, the weight of the type is 2325 kg / m3, the pore number is 0.00232%, the water content is 0.108%, and porosity is 0.00108%.Beton merupakan salah satu bahan konstruksi yang banyak dipergunakan. Saat ini, pengguanaan variasi pada beton sedang banyak diteliti. Limbah galvalum memiliki sifat tarik yang tinggi namun ringan. Sifatnya yang ringan diharapkan mampu mengurangi berat beton itu sendiri. Tujuan dari penelitian ini adalah untuk mengetahui nilai kuat tekan, absorpsi, berat jenis (Ɣ), angka pori (e),derajat kejenuhan (Sr), kadar air (Wc), dan porositas dari penambahan limbah galvalum. Metode yang digunakan merupakan metode eksperimen. Variasi pensubtitusi limbah galvalum yang digunakan yaitu 50% dan 100% dari berat agregat kasar. sampel yang digunakan berbentuk silinder ukuran 15cm x 30 cm dengan mutu awal fc’ 18.67 Mpa. Hasil uji kuat tekan menunjukkan bahwa subtitusi limbah galvalum belum mampu melebihi mutu awal rencana. Hasil uji tertinggi didapat pada prosentase 50% dengan nilai kuat tekan fc’ 17,94 Mpa. Pada prosentase tersebut, didapat hasil uji absropsi yaitu 0,010%,  berat jenis yaitu 2325 kg/m3, angka pori yaitu 0,00232%, kadar air yaitu 0,108% serta porositas yaitu 0,00108%. 
Mengurangi Durasi Penyelesaian Proyek dengan Menggunakan Metode Crashing pada Pembangunan Gedung Kecamatan Lamongan Dwi Kartikasari; S. W. Sampurno; P. E. Agustyawan
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 1 (2021): JUNE
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2293.676 KB) | DOI: 10.30737/jurmateks.v4i1.1790

Abstract

Cost, quality and time are important aspects planned in the implementation of construction. Achieving optimum quality at a lower cost is the main goal desired in project implementation. This study aims to determine the comparison of project costs with the application of the Crashing method on the Lamongan District building construction project. The normal cost required to carry out the construction is Rp. 1,144,445,838.00 with a project duration of 150 working days. The crashing method is applied by adding additional working hours (overtime). The duration of working hours is increased to 3 hours, so it is expected that with this addition, the volume of work produced is greater. The results of the study obtained that the total cost after being accelerated with the addition of work duration was Rp. 1,162,252,577.00 or more expensive 1.55% of the normal cost and the duration of the project implementation is 143 working days. With this addition, the project duration is faster by 7 days.
Optimalisasi Waktu dan Biaya Pada Proyek Gedung Pertanahan Nasional Kota Blitar Dengan Metode Critical Path Method (CPM) Bobby Damara; Rasio Hepiyanto
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 1 (2021): JUNE
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2745.604 KB) | DOI: 10.30737/jurmateks.v4i1.1735

Abstract

Cost and time control is a key aspect of construction management. In its planning, both aspects need to be done appropriately to get optimal results. Building construction cannot be separated from various obstacles that cause delays in work until the cost of repairs. This research aims to optimize the cost and time in the Blitar National Land building by using the CPM (Critical Path Method) Method. The method is applied by using Microsoft project software to find out the critical paths are located in each division of the work by creating network diagrams and delayed scenarios. The results of the study obtained critical pathways occurred inactivity (A, B, C, D, E, G, H, I, L and M). From the critical path, an increase in the number of workers and the duration of work (overtime) to prevent delays. The prevention takes a fee of Rp 290,617,244 with the duration of work (Activity B) requires 15 additional workers, 8 hours of overtime.   (Activity C) it takes 3 additional workers and 1hour additional overtime time and on (Activity H) requires 6 additional workers with overtime for 1 hour.
Penggunaan Biji Jenitri Sebagai Pengganti Filler Pada Lapisan Aspal (Ac-Bc) Terhadap Variasi Suhu Bella Amiria Rahmahima; Agata Iwan Candra; Yosef Cahyo Setianto Poernomo
Jurnal Manajemen Teknologi & Teknik Sipil Vol 3, No 2 (2020): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (707.854 KB) | DOI: 10.30737/jurmateks.v3i2.1073

Abstract

The use of bitumen was widely used in road construction in Indonesia. Moisture – fed asphalt results in lowered durability and qualitative qualities. Concrete asphalt results from road rifts that are a suitable, well-built alloy of heavy vehicles, and mixed temperatures sdetermined by the type of asphalt to be used. The study provided a new innovation in content replaced with the jenitri seeds in 0%, 3%, 6%, and 9% variations with temperature variations 60⁰C and 100⁰C. The research method used in this study is the experimental method used with the jenitri seed instead of the filler, testing was done by being put into a water bath and then marshall’s. The purpose of this study is to look at the output of the filler levels of the jenitri seed and the temperature differential. Based on the study, the use of jenitri seeds to replaced fillers that have been tested with marshall’s devices and met the specification’s value is 3% variation filler at 60⁰C with a VIM: 3,78% VMA: 21,3% VFB: 82,26%  Stabilitas: 3608kg Flow: 3,13mm MQ: 1151,49kg/mm. Penggunaan aspal banyak digunakan untuk konstruksi jalan di Indonesia. Aspal yang mengalami pemuaian suhu panas akan mengakibatkan keawetan dan kualitas menurun. Lapis aspal beton merupakan dari perkerasan jalan yang merupakan campuran agregat yang cocok dan layak dilalui kendaraan berat, dan suhu pencampuran ditentukan berdasarkan jenis aspal yang akan digunakan. Penelitian ini memberikan inovasi baru yaitu bahan pengisi filler diganti biji jenitri dalam variasi 0%, 3%, 6%, dan 9%  dengan menggunakan variasi suhu 60⁰C dan 100⁰C. Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimental dengan biji jenitri sebagai pengganti filler aspal, pengujian dilakukan dengan di letakkan dulu ke dalam alat Water Bath kemudian di uji dengan alat Marshall. Tujuan penelitian ini adalah melihat hasil perbandingan filler kadar biji jenitri dan dengan suhu yang berbeda. Dari hasil penelitian tersebut penggunaan biji jenitri sebagai bahan pengganti filler yang sudah di tes uji alat marshall dan memenuhi nilai spesifikasi adalah filler variasi 3% di suhu   60⁰C  dengan  nilai  VIM:  3,78%  VMA: 21,3% VFB: 82,26% Stabilitas: 3608kg Flow: 3,13mm MQ: 1151,49kg/mm
Beton Fc’ 21,7 Mpa Menggunakan Agregat Kasar Biji Genitri Muhammad Sulton Bahrudin; Agata Iwan Candra; Sigit Winarto
Jurnal Manajemen Teknologi & Teknik Sipil Vol 3, No 2 (2020): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (614.471 KB) | DOI: 10.30737/jurmateks.v3i2.1135

Abstract

Concrete in technological development has progressed very rapidly, so that it is able to open ideas in the use of organic materials as an alternative material for concrete. Genitri seeds are an organic material that can be used as an alternative to the building blocks of concrete. Genitri seeds have very good hardness and have a light volume weight so that they can reduce the large structure weight due to the weight of the concrete itself. The research method used in this study is an experimental method with genitri seeds as a mixture of coarse aggregate in concrete. This study aims to determine how much influence the compressive strength, slump value, volume weight, absorption, using a mixture of genitri seeds with a percentage of 5%, 10%, 15% of the weight of coarse aggregate. The results showed that the highest compressive strength was obtained by the addition of 5% genitri seeds, namely 20.75Mpa with an average slump value of 5.2. In the absorption test, the value of ¼ hour 0.040 1 hour 0.022 4 hours 0.006 24 hours 0.002 was obtained.Beton dalam perkembangan teknologi mengalami kemajuan yang sagat pesat, sehingga mampu membuka pemikiran dalam pemanfaatan material organik sebagai bahan alternatif penyusun beton. Biji genitri merupakan salah satu bahan organik yang dapat digunakan sebagai alternatif material penyusun beton. Biji genitri memiliki kekerasan yang sangat baik dan memiliki berat volume yang ringan sehingga dapat mengurangi berat struktur yang besar akibat beban dari berat beton itu sendiri. Metode penelitian yang digunakan pada penelitian ini adalah metode eksperimental dengan biji genitri sebagai bahan campuran agregat kasar pada beton. Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh terhadap kuat tekan, nilai slump, berat volume, absorpsi, dengan menggunakan bahan campuran biji genitri dengan persentase 5%,10%,15% dari berat agregat kasar. Dari hasil penelitian menunjukkan bahwa kuat tekan tertinggi diperoleh dengan penambahan biji genitri sebesar 5% yaitu 20,75Mpa  dengan nilai slump rata-rata 5,2. Pada pengujian absorpsi diperoleh nilai ¼ jam 0,040 1 jam 0,022 4 jam 0,006 24 jam 0,002.
Meningkatkan Kualitas Pelayanan Jalan Raya Plandaan – Boro Tulungagung Menggunakan Perkerasan Kombinasi Geotextile Muhammad Ridho; Yosef Cahyo Setianto Poernomo; Agata Iwan Candra; Fajar Romadhon
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2595.78 KB) | DOI: 10.30737/jurmateks.v4i2.2057

Abstract

Roads as a means of transportation have an essential role in supporting human activities. One of the developments in road construction is the application of geotextiles in road combination pavements. Geotextile itself is often found in construction planning, especially in soil stabilization. The plandaan – boro Tulungagung road section is indicated by the type of silt as deep as 1.2 meters so that improvements are needed to support the quality of road construction. The purpose of this research is to plan road pavement with geotextiles on the Plandaan to boro roads. The geotextile used is a woven geogrid geotextile. The method used in planning is the Bina marga method of the 2017 Road Pavement Design Manual. The data used include technical data, traffic data, and California Bearing Ratio (CBR). The planning includes traffic design, pavement thickness calculations, and volume calculations. The planning results will be HMA – WC pavement covering an area of 4,200 m, with K225 concrete pavement covering an area of 8,400 m. Class Bﬞ Aggregate Pavement covering an area of 10,500 m using a geotextile layer requires 51,000 m² so that these results can be used as a reference in the repair or improvement of the Plandaan - boro Tulungagung road.
Optimalisasi Penjadwalan Proyek Pembangunan Gedung Puskesmas Badas Menggunakan Critical Path Method-Project Evaluation and Review Technique (CPM-PERT) Dafid Cahya Setiawan; Ahmad Ridwan; Suwarno Suwarno
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2916.706 KB) | DOI: 10.30737/jurmateks.v4i2.2011

Abstract

Lack of project scheduling planning and ineffective control make the activity of a project less efficient. This will have an impact on the success of the project. This situation will result in delays and a decrease in the quality of work due to time constraints. Scheduling is important for determining the required activities and arranging a sequence and time frame to complete project activities on time. This study aims to optimize the scheduling of a moderate light rehabilitation project in the Badas Community Health Center building, Kediri Regency, where project start-ups are experiencing delays. The method used is Critical Path Method-Project Evaluation and Review Technique (CPM-PERT), which is a method to determine the duration of a project that can be completed and the percentage of its success. The analysis carried out includes calculation the duration desired acceleration and cost slope. Analysis results using CPM-PERT obtained critical path in: preparation activities (A), earthworks (B), structural work (D), 1st floor work (E), 2nd floor work (F), 3rd floor work (G), roof, ceiling and plank work (H), iron work (I), electrical work (L), floor and wall covering work (M) and finishing work (N). The normal duration of project completion is 140 days and costs Rp. 1,818,182,709, whereas with the CPM-PERT method the duration can be accelerated to 128 days (probability 99.99%) and required additional fee 8.1% or worth Rp. 146,719,664. Implementers can use it in optimizing scheduling and financing on the badas public health center building construction project.
Optimalisasi Biaya dan Waktu Proyek Kontruksi Pelebaran Jalan Menggunakan Earned Value Sentot Tri Wibowo; Suwarno Suwarno; Ahmad Ridwan; Haris Wicaksono; Fitry Rahmawaty
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2156.877 KB) | DOI: 10.30737/jurmateks.v4i2.1828

Abstract

In a construction project, there are several aspects that cause the project not to go according to plan. Cost and time are aspects that need to be considered to avoid losses incurred in a project. Jombang-ploso-legundi-gresik road project is one of the road widening projects carried out by PT. Mix Pro Indonesia. The project was carried out with the aim that access to (Surabaya-Mojokerto) or further trans Java toll road is quicker safe and smoother. This research aims to optimize the cost and time on the project using the Earned Value method. Calculations include the calculation of ACWP (Actual Cost of Work Performance), BCWS (Budgeted Cost Work Schedule), and BCWP (Budgeted Cost for Work Performed) using the Earned Value method. From these parameters, estimate aspects of cost and time. As well as project analysis of acceleration on a critical trajectory of work. The results of calculations in the 12th week obtained a BCWS value of Rp 1,216,677,846,400 BCWP = Rp 3,040,372,140,080, ACWP = Rp 3,678,560,000. CV value = -Rp 109,203,495.92, SV = Rp 895,646,816.82, CPI = 0.827, and for SPI = 2,499. From these results it can be seen that the CPI value < 1 which means that there are project expenditures that exceed the original plan. With the results, it can be used as a reference in the implementation of project activities.
Optimalisasi Kuat Tekan dan Kuat Lentur Beton Menggunakan Campuran Lateks Ary Prastowo; Ahmad Ridwan; Edy Gardjito; Zendy Bima Mahardana
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2743.619 KB) | DOI: 10.30737/jurmateks.v4i2.2064

Abstract

Concrete is a building construction material that has an important role. Concrete itself tends to have strong properties in resisting compressive forces, but weak in resisting tensile or flexural forces. The use of additives in concrete is an option to improve the basic properties of concrete. Latex or rubber latex is one of the natural materials that can be used in concrete mixtures. Its adhesive properties can be utilized in improving the quality of concrete. This study aims to determine the compressive strength and flexural strength of concrete with the addition of latex. The research was conducted experimentally by making concrete specimens in the laboratory. The addition of latex by 10% and 30% with a planned concrete quality of fc' 29.5 MPa. The test object used is a cylinder measuring 15x30 cm and a beam measuring 15x15x30 cm. The tests carried out were testing the compressive strength and flexural strength at the age of 28 days. The results showed that the highest compressive strength was at the addition of 10% latex with a value of 9.96 MPa. While the highest flexural strength value obtained was 3.20 Mpa at the addition of 10% Latex or. From these results it can be seen that the addition of latex has not been able to improve the quality of concrete and has not been able to increase the compressive strength or flexural strength of concrete. So that these results can be used as research development or concrete production.
Kuat Tekan dan Penyerapan Batako Menggunakan Serat Pelepah Kelapa Darul Niham Wahono; Zaenuri Arifin; Yosef Cahyo Setianto Poernomo; Zendy Bima Mahardana; Ashabul Yamin
Jurnal Manajemen Teknologi & Teknik Sipil Vol 4, No 2 (2021): OCTOBER
Publisher : Faculty of Engineering, Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4484.351 KB) | DOI: 10.30737/jurmateks.v4i2.2016

Abstract

Brick is a building material that has a function as a room sealer. Its larger size, when compared to red brick, makes bricks more in demand in the market. Improving the quality of bricks needs to be done to meet the needs of the building. The use of added materials becomes one of the things that can be considered to improve the nature and quality of bricks. This research aims to find out the strong press and absorption of bricks with the use of coconut pellet fiber. The research was conducted experimentally with the manufacture of test objects in the laboratory. The test object used is in the form of a beam of 30x15x10 cm. The percentage variation of coconut fiber is 5%, 10%, and 15% of the weight mass in bricks. The tests carried out include a strong compressive and water absorption test with reference to the Indonesian National Standard (SNI). The results of water absorption tests obtained the optimum value in bricks with a mixture of 5% fiber which is 6% of the mass of the weight of the brick, while the minimum value is in the brick, 15% fiber, which is 10%. While the compressive strength results get the optimum value on the 5% fiber mix variation, which is 20.1 kg/cm², and the minimum value on the variation of 15% fiber is 8.8 kg/cm². From these results showed that bricks with coconut pellet fiber have not been able to improve the quality of bricks.

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