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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.
Pembangunan Kolom Lantai 2 dalam Mendukung Kegiatan Pembelajaran di Pondok Pesantren Ashhaburratib Lilis Tiyani; Jonathan Saputra; Yuwono
Society : Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol. 5 No. 1 (2024): Vol.5 No.1, October 2024
Publisher : Universitas Dinamika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37802/society.v5i1.677

Abstract

Pondok Pesantren Ashhaburratib merupakan lembaga yang bergerak di bidang sosial pendidikan. Namun, kondisi lantai 2 gedung pondok pesantren berada dalam kondisi yang memprihatinkan akibat permasalahan internal. Pemilik pondok pesantren telah memulai upaya pembangunan lantai 2, namun berhenti di tahap terpasangnya tulangan-tulangan untuk kolom pada salah satu gedung bangunan. Tulangan yang sudah terpasang pada beton namun tidak tuntas dikerjakan dapat terpengaruh oleh lingkungan luar sehingga terjadi korosi. Korosi yang muncul dapat menurunkan kuat lekat antara beton dengan tulangannya, sehingga dapat memperburuk kualitas gedung secara keseluruhan. Tujuan program kegiatan pengabdian kepada masyarakat ini adalah membantu pihak pengelola Pondok Pesantren Ashhaburratib untuk melanjutkan proses pembangunan pada lantai 2 gedung pondok pesantren tersebut. Kegiatan Pengabdian dilakukan dengan melakukan persiapan dan survei terlebih dahulu, lalu dilanjutkan dengan melaksanakan pekerjaan kolom lantai 2 Gedung Pondok Pesantren Ashhaburratib. Kolom yang dibangun ini bertujuan agar tulangan yang sudah terpasang tidak semakin lama terpapar oleh lingkungan luar dan terhindar dari korosi. Kegiatan ini bekerjasama dengan mitra-mitra pengabdian yang terlibat, yaitu tim pengurus Pondok Pesantren Ashhaburratib.
Pelaksanaan pembangunan balok lantai 2 gedung Pondok Pesantren Ashhaburratib untuk mendukung kegiatan pembelajaran Jonathan Saputra; Lilis Tiyani; Yuwono
Abdimas Siliwangi Vol. 8 No. 2 (2025): Juni 2025
Publisher : IKIP SILIWANGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/as.v8i2.27254

Abstract

Ashhaburratib Islamic Boarding School is an institution that operates in the field of social education. However, the condition of the Islamic boarding school building is in poor condition due to problems on the 2nd floor of the Islamic boarding school building. The owner of the Islamic boarding school has started efforts to build the second floor to accommodate the increase in students, but has stopped at the stage of installing reinforcements for the columns in one of the buildings. The unsustainability of this development was due to the death of the Islamic boarding school owner, so that on the 2nd floor of the building only reinforcement and columns were installed. To deal with this problem, the Abdimas Team held a Community Service program entitled "Implementation of Beam Work on the 2nd Floor of the Ashhaburratib Beji Islamic Boarding School Building, Depok, West Java". This program is held in order to implement the Tri Dharma of Higher Education and is a routine and programmed matter to help solve problems faced by the community. Beams are an important part of a building structure and are the part of the structure that functions to support the load of the upper structure and distribute it to the columns.