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All Journal Journal of Green Science and Technology
Andy Yanuar Putra Riyadi
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Transportation

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Performance Evaluation of The Apparatus at The Intersection of Jl. Teuku Umar-Jl. Pemuda and Jl. Sawunggaling - Jl. Basuki Rahmat Bojonegoro District Soegyarto; Yulis Widhiastuti; Andy Yanuar Putra Riyadi
Journal of Green Science and Technology Vol 9 No 1 (2025): Journal of Green Science and Technology Vol. 9 No. 1 March 2025
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i1.9946

Abstract

Along with the increasing progress and development in society, the desire to use time and money is very necessary. Population growth in an urban area is always followed by an increase in space requirements. In Bojonegoro itself, which is one of the cities of industry, tourism, and education that cannot be separated from the movement of traffic in and out of both people and goods. So there are many intersections that connect roads to shopping centers, offices, government, housing, and roads to the city center. One of the intersections in Bojonegoro is the intersection of Jl. Teuku Umar-Jl. Pemuda and Jl. Sawunggaling-Jl. Basuki Rahmat Bojonegoro Regency which has a fairly high transportation density during working time hours, so the use of traffic signals is needed. This causes the traffic flow that passes through to continue to experience changes in vehicle volume, especially at certain hours which causes delays in travel due to increased traffic flow. In order to avoid travel delays due to increased traffic flow, improvements in traffic management are needed. This study aims to analyze and evaluate the performance of the intersection of Jl. Teuku Umar-Jl. Pemuda and Jl. Sawunggaling-Jl. Basuki Rahmat Bojonegoro Regency using the PKJI 2023 method. From the results of the analysis, it is found that there is a need for an additional phase from 2 phases to 4 phases so that there is no queue length and the number of vehicles stopped on the East Approach (Jl. Pemuda) is too long and many. Keyword: intersections, traffic, transportation, traffic signals.
Comparison of Concrete Performance With Fiberglass Substitution as A Sand Replacement yuliswidhiastuti; Soegyarto; Andy Yanuar Putra Riyadi
Journal of Green Science and Technology Vol 9 No 1 (2025): Journal of Green Science and Technology Vol. 9 No. 1 March 2025
Publisher : Faculty of Engineering, Universitas Swadaya Gunung Jati

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v9i1.9947

Abstract

Fiberglass, with its superior mechanical properties and corrosion resistance, has been proposed as a partial or total replacement for sand in concrete mixes. Although research on the use of glass powder as a sand substitute has been widely conducted, specific studies examining the use of fiberglass as a fine aggregate replacement in concrete are limited. Therefore, this study will focus on a comparative analysis of the performance of concrete with fiberglass substitution as a sand replacement material, considering various mechanical and durability aspects. With the aim of knowing the effect of the addition of fiberglass powder into the concrete mixture. in this study the method of calculating mix design using the SNI 03-2834-2000 method. in this research, the results obtained with the addition of fiberglass in the concrete mixture at certain variations cannot increase the compressive strength of Hybrid concrete at the age of 7 days, 14 days and 28 days.   The optimum value of the 7-day concrete compressive strength test is in the 2% variation of fiberglass addition, which is 12.14 MPa because it does not decrease significantly. The optimum value of the 14-day concrete compressive strength test is also in the 2% variation of 15.01 MPa, and for the optimum value of the 28-day concrete compressive strength test is also in the 2% variation of 18.38 MPa.  Keyword: Concrete, Fiberglass, Compressive Strength.
Co-Authors soegyarto Yulis Widhiastuti yuliswidhiastuti