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All Journal G-Tech : Jurnal Teknologi Terapan Proceedings Series on Physical & Formal Sciences Jendela ASWAJA
Wajdi, Bina Arumbinang
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Mechanical Engineering Social Sciences

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Pengaruh Lamanya Perendaman Terhadap Absorpsi, Ketahanan Aus, dan Kuat Tekan Paving Block Wajdi, Bina Arumbinang; Mudiyono, Rachmat; Soedarsono, Soedarsono
Proceedings Series on Physical & Formal Sciences Vol. 6 (2023): Prosiding Seminar Nasional Teknik (SENATEK) 2023
Publisher : UM Purwokerto Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/pspfs.v6i.849

Abstract

Paving blocks are considered advantageous over other road surfaces, and it is undeniable that paving blocks are an alternative road surface whose quality is still affected by water flooding. The objective of this study was to determine the effects of soaking time and age of paving blocks in terms of absorption, wear resistance, and compressive strength. The paving blocks used were manual (Holland) brick models obtained from Banyubiru and mechanical ones obtained from PT Pohon Cemara Semarang. The variations soaking times were 0, 12, 24, 36, 48 (hours) for 7, 14, 21, 28 (days) old pavers. The tests conducted were absorption, wear resistance, and compressive strength tests of paving blocks, carried out in the UNISSULA civil engineering laboratory. The results of absorption tests manual and machine paving block showed that value of the absorption test increased with increasing soaking time. The results of wear resistance of manual and machine pavers show that the untreated samples had a lower wear value and all test results met the requirements of SNI 03-0361-1996 Quality A. The maximum compressive strength of manual paving blocks at 28 days of age without treatment is 13.334 MPa. The maximum compressive strength of machine-made pavers is 25.297 MPa for paving blocks without immersion.
Key Determinants of Technology Adoption in Construction Projects in Magelang Fitriyani, Ety; Istikomah, Hulfa; Ismaili, Abul Fida; Wajdi, Bina Arumbinang
G-Tech: Jurnal Teknologi Terapan Vol 9 No 2 (2025): G-Tech, Vol. 9 No. 2 April 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i2.6582

Abstract

The development of the construction sector in Indonesia is expected to increase annually.  Magelang had various large construction projects with a completion target of 2024. However, the use of construction technology in this region is limited resulting in delays in work, increased costs, and decreased quality. This study aims to identify, analyze, and rank factors influencing the use of technology in construction projects in Magelang based on their level of importance. Understanding those factors can help identify the right strategy to increase the wider and optimal adoption of technology in the construction sector for effective and efficient implementation. Data were collected by distributing questionnaires. The questionnaire consisted of 30 factors influencing the use of technology classified into three main categories: (1) human/workforce, (2) industry, and (3) management. This study found the first rank for each category, namely "lack of experience in using technology software" (human/labor category), "Availability of materials and ease of handling" (Industry category), and "Willingness of owners, supervisors, builders, and suppliers to participate in information management" (management category). Construction industry practitioners can utilize the findings of this study in developing systems to improve technological adoption in construction projects for more effective and efficient project implementation.
Analisis Dampak Sedimentasi Terhadap Kapasitas Tampung Waduk di Jawa Tengah Wajdi, Bina Arumbinang; Fitriyani, Ety; Istikomah, Hufa; Ismail, Abdul Fida
Jurnal Jembatan Efektivitas Ilmu dan Akhlak Ahlussunah Wal Jama'ah Vol 6 No 3 (2025): September
Publisher : LPPM UNU CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52188/jendelaaswaja.v6i3.1753

Abstract

Reservoirs play a strategic role in supporting water security, providing raw water, agricultural irrigation, and flood control in Central Java. However, over the past two decades, sedimentation has become one of the most serious problems threatening the sustainability of reservoir functions. The accumulation of sediments on the reservoir bed gradually decreases storage capacity and reduces operational effectiveness, particularly during the dry season when water demand increases. This study aims to comprehensively examine the impact of sedimentation on reservoir storage capacity through literature analysis and secondary case studies. The method employed is a systematic literature review with a comparative analysis approach of several major reservoirs in Central Java, namely Wadaslintang, Kedungombo, Sempor, and Mrica. Secondary data were obtained from previous research, official reports from the River Basin Agency (BBWS), and national scientific publications. The results show that high sedimentation rates have reduced the effective storage capacity of reservoirs by 15-40 percent of their initial capacity. The main contributing factors include soil erosion in catchment areas, land-use changes, and limited maintenance activities. Therefore, an integrated sediment management strategy is required, combining technical measures such as dredging and sabo dams with non-technical approaches based on land conservation and community participation. This study is expected to serve as a reference for sustainable reservoir management planning in Central Java.
Co-Authors Abul Fida Ismaili Fitriyani, Ety Ismail, Abdul Fida Istikomah, Hufa Istikomah, Hulfa Rachmat Mudiyono, Rachmat Soedarsono Soedarsono