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All Journal ABDIMAS SILIWANGI Society : Jurnal Pengabdian dan Pemberdayaan Masyarakat JURNAL POLI-TEKNOLOGI
Jonathan Saputra
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Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Journal : JURNAL POLI-TEKNOLOGI

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KINERJA BETON SELF COMPACTING CONCRETE DENGAN BAHAN TAMBAH LIMBAH PET Raka Kana Pila; Amalia; Jonathan Saputra
Jurnal Poli-Teknologi Vol. 21 No. 1 (2022)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v21i1.3341

Abstract

Self Compacting Concrete (SCC) is only has high flow and pass abilities at the formwork and reinforcementsystems, but also no required vibration work for compaction. This research aims to investigate the physicaland mechanical behavior of fresh and hard concrete. This research was arranged by making SCC concretespecimens with an initial 0.3 according to ACI 211.4R- 93, and statistical methods of regression with SPSS.Objects were tested using a polyethylene terephthalae (PET) variation of 0%, 0.30%, 0.50%, 1.00% and0.8% superplastisizer. The physical behavior of the concrete SCC which were tested consists of flowability,passing ability, binding time and weight. For the mechanical behavior of concrete SCC which were testedconsists of compressive strength, split tensile strength, tensile strength, and elastic modulus. The results ofthis research indicate that the use of PET in SCC can increase the passing ability by 0.92, PET can increasethe weight value of SCC up to 1.16%. SCC binding time with 0.50% PET has the fastest binding time of232 minutes. The compressive strength of concrete using 1.00% PET at the age of 3, 7, 14, and 28 dayshad the greatest value. The split tensile strength of 1.00% PET has the largest value, spesifically 2.48 Mpa.In the flexural tensile strength test, the use of 0.50% PET and 1.00% PET increased the flexural strengthby 6.45% -17.37% compared to the flexural strength at 0% PET. The modulus of elasticity increased in allvariations of PET by 8.34% -25.08% compared to SCC without PET. Based on testing the quality of freshconcrete and hard concrete, the optimum variation in the use of PET is 1.00%Keywords: Compressive strength; PET; SCC
KAJIAN PENGARUH KEBISINGAN PROYEK KONSTRUKSI TERHADAP KENYAMANAN WARGA PERMUKIMAN SEKITAR Atma Noor Fitria; Wahyuni Susilowati; Jonathan Saputra
Jurnal Poli-Teknologi Vol. 21 No. 2 (2022)
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/pt.v21i2.4141

Abstract

In the construction development process, activities such as clashes between work tools, formwork work, casting, and the use of heavy equipment have the potential to cause noise to the area around the project. This study examines the noise impact of Project X which is located close to a residential area. Noise is defined as sound that arises and is not desired but can interfere with health and comfort in the environment. This study aims to examine the effect of noise on the comfort of residents of surrounding settlements. The data were obtained by observation method, measurement with sound level meter, and questionnaire. This research refers to the Decree of the Governor of DKI Jakarta No. 551 of 2001, while the measurement method is adjusted to the Decree of the Minister of the Environment No. 48 of 1996. The results showed that most of the noise measurements exceeded the noise quality standard up to 68.45 dB(A). Simple regression analysis gives the regression equation Y = 30.811 – 0.445X, meaning that project noise has a negative effect on the comfort of residents. Hypothesis testing supports the results of simple linear regression by concluding that project noise has a significant negative effect on the comfort of residents.
Co-Authors Amalia Atma Noor Fitria Lilis Tiyani Raka Kana Pila WAHYUNI SUSILOWATI Yuwono