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Matriks Teknik Sipil Gedung IV lt. 1 Jurusan Teknik Sipil Jl. Ir. Sutami 36A Surakarta Jawa Tengah - Indonesia 57126
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Matriks Teknik Sipil
Published by Universitas Sebelas Maret
ISSN : 23548630     EISSN : 27234223     DOI : -
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Materials Science & Nanotechnology
Matrik Teknik Sipil adalah open access journal yang mempublikasikan penelitian di bidang struktur, hidrologi, transportasi, geoteknik dan management proyek. Matriks Teknik Sipil diterbitkan oleh Program Studi Teknik Sipil, Fakultas Teknik, Universitas Sebelas Maret. Jurnal ini menyediakan open access yang pada prinsipnya membuat riset tersedia secara gratis untuk publik dan akan mensupport pertukaran pengetahuan global terbesar.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 5 Documents
 1 
Search results for , issue "vol 12, no 2 (2024): desember" : 5 Documents clear
KAJIAN PENERAPAN PERSAMAAN FUNGSI LOGARITMIS UNTUK MEMPREDIKSI KUAT TEKAN BETON DI BAWAH UMUR 28 HARI Wibowo Wibowo; Endah Safitri; Teuku Rafi Baihaqi
Matriks Teknik Sipil Vol 12, No 2 (2024): Desember
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v12i2.77202

Abstract

The use of the maturity method to predict the actual compressive strength of concrete in construction projects is limited to same concrete mix designs that have undergone laboratory calibration tests. In the application of this method logarithmic equations are commonly used as model predictions because of their ease of use. Several studies has been done to compare logarithmic equation with other prediction model on concrete with binder subtitute. This experimental study aims to determine the suitability of using logarithmic equations in describing the compressive strength-maturity relationship in conventional concrete design mixes with different water-cement ratio (0.4; 0.45; 0.5; 0.55; 0.6) and with use of admixture in the form of 10% fly ash. The test object used is a concrete cylinder with a height of 30 cm and a diameter of 15 cm. Temperature measurements and concrete compressive strength tests were carried out at the ages of 1, 3, 7, 14, 21, and 28 days. The test data is depicted in the logarithmic equation curve and compared with the hyperbolic equation. The results showed that the logarithmic equation resulted in a higher coefficient of determination or lower error in 5 of the 6 mix designs used. Thus, the logarithmic equation has a good suitability for data testing and can be used to predict the compressive strength of concrete for the mix design used in this study.
ANALISIS BIAYA DAN WAKTU PEMBANGUNAN GEDUNG FPEB UPI MENGGUNAKAN SISTEM MODULAR PADA DINDING Ary Setyawan; Friska Herlina Pakpahan; Setiono Setiono
Matriks Teknik Sipil Vol 12, No 2 (2024): Desember
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v12i2.77625

Abstract

The conventional development system which is still commonly used in Indonesia is regarded as being ineffective to apply because it is more expensive. In addition to technology advancements, a development method that employs a modular approach is possible to cut down on project expenses and duration. The building process in a modular system result in industrialization, where the construction materials needed are mass-produced. This study compares the time and costs involved in building conventional and modular walls. The costs and times for traditional and modular wall works are being compared in this study using a comparative descriptive methodology. The data was gathered as part of the FPEB Building project at the Indonesian Education University (UPI), and Microsoft Excel will be used to process it. In this study, the usage of lightweight concrete panels as modular wall materials was analyzed for cost and duration effectiveness to establish the percentage of savings. From the data analysis, it was found that the use of lightweight concrete panels walls experienced a cost inefficiency of 6,4%. When viewed from a time perspective, the use of lightweight concrete panels are 45.45% efficient.
PERBANDINGAN BIAYA DAN WAKTU PEMBANGUNAN GEDUNG PASCASARJANA UPI DENGAN METODE MODULAR PADA DINDING Ary Setyawan; Gabriella Angelisa Claudia; Fajar Sri Handayani
Matriks Teknik Sipil Vol 12, No 2 (2024): Desember
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v12i2.77640

Abstract

The Indonesian University of Education faced project delays that had an impact on the budget and timing of the Postgraduate Building's development. The UPI Postgraduate Building is being constructed using traditional methods, which results in a lengthy amount of work. The aforesaid issue might have a solution in the modular approach. The modular approach can swiftly meet significant customer demands since it has a production technique for creating components that are mass-produced. The conventional method's implementation costs and timeline are being contrasted with the modular method's implementation costs and timeline. The cost and construction time of traditional walls and modular walls which use precast concrete materials and lightweight concrete panels are compared for wall components. To make the optimal decision, the analysis was done using the comparison technique and the cost-effectiveness analysis approach. From the results of the analysis, the use of precast concrete and lightweight concrete panels experienced cost inefficiencies of 17.92% and 11.75% but were able to save time 62.03% and 34.78% respectively. Based on the Cost Effectiveness Analysis, an alternative material that was a more cost-effective choice was precast concrete walls.
ANALISIS KONSEP NILAI HASIL PADA PROYEK PEMBANGUNAN JEMBATAN PENGHUBUNG DESA SAMBI KABUPATEN BOYOLALI MENGGUNAKAN PROGRAM PRIMAVERA 6.0 Setiono Setiono; Inas Hasna Muthiah; Muji Rifai
Matriks Teknik Sipil Vol 12, No 2 (2024): Desember
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v12i2.84229

Abstract

Infrastructure in Indonesia is progressing rapidly, especially in terms of increasing toll roads and the number of national airports. In the implementation of construction projects, construction management plays an important role, especially in managing costs and time. The Sambi Village Connecting Bridge as one of the infrastructure development projects also has a crucial role in supporting the economic, social, and cultural sectors in the area. The novelty of this research can be seen in terms of research time, research location, and research object in the form of a bridge. The purpose of this research is to evaluate cost and time forecasts, and determine whether the project will generate profits or losses. In this research, a descriptive analysis method is used which involves collecting, processing, and analyzing data. The concept of earned value was also used to control the cost and time of the project, and was applied through the Primavera 6.0 program.  The results of the analysis show that the estimated total project completion time exceeds the planned time, and the use of Primavera 6.0 program can improve the efficiency of the project schedule and cost. In addition, this analysis can also be applied to ongoing projects to evaluate contractor performance. Through this research, recommendations can be drawn to improve the efficiency of project schedules and costs, as well as to evaluate contractor performance on ongoing projects. 
STUDI PENGARUH PEMBERIAN PROBIOTIK PRODUK LOKAL TERHADAP KADAR DO, COD DAN BOD PADA AIR LIMBAH TAHU Levita Chrisnelta Lomban; Budi Utomo; Koosdaryani Soeryodarundio
Matriks Teknik Sipil Vol 12, No 2 (2024): Desember
Publisher : Program Studi Teknik Sipil FT UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mateksi.v12i2.77913

Abstract

Peningkatan kegiatan industri tahu menyebabkan terjadinya peningkatan pada limbah yang dihasilkan. Air limbah tahu mengandung bahan organik berbahaya, sehingga diperlukan pengolahan terlebih dahulu untuk memenuhi baku mutunya agar tidak mencemari lingkungan. Pada penelitian ini, peneliti ingin menggunakan probiotik produk lokal untuk meningkatkan kandungan oksigen yang sudah ada serta mengurangi kandungan BOD dan COD yang terkandung pada limbah. Jenis penelitian yang digunakan merupakan penelitian eksperimen murni dengan metode analisis data yaitu metode deskriptif kuantitatif yang mendeskripsikan, meneliti, menyajikan data dalam bentuk grafik atau diagram, tabel serta angka untuk menarik kesimpulan berdasarkan percobaan di laboratorium. Hasil penelitian menunjukkan bahwa probiotik memberikan perubahan pada parameter air limbah tahu. Hasil pengujian DO menunjukkan pada perbandingan 1:2 campuran ALT dan probiotik naik menjadi 2,52 mg/l saat 8 jam. Pada perbandingan 1:2 campuran ALT-N dan probiotik juga naik menjadi 3,65 mg/l saat 6 jam. Kadar COD dan BOD pada ALT juga turun menjadi 49,296 mg/l dan 97,34 mg/l. Hasil penelitian menunjukkan bahwa probiotik lokal mampu meningkatkan kadar DO serta menurunkan kadar COD dan BOD pada air limbah tahu.Kata Kunci : air limbah tahu, BOD, COD, DO, probiotik lokal

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