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All Journal Media Konstruksi : Jurnal Ilmiah Teknik Sipil JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Bandar: Journal of Civil Engineering Mining Science and Technology Journal ANOA: Jurnal Pengabdian Masyarakat Fakultas Teknik Open Access DRIVERset
Mursalim Ninoy La Ola
Universitas Sembilanbelas November Kolaka
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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Journal : JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION

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Compressive Strength of Coconut Fiber Concrete Using Sea Water as a Solvent Arman Hidayat; Mursalim Ninoy La Ola; Muhammad Buttomi Masgode; Al Tafakur La Ode
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol. 7 No. 1 (2023): JCEBT MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v7i1.8935

Abstract

Concrete is a mixture of Portland cement or other hydraulic cement, fine aggregate, coarse aggregate and water or without additives to form a solid mass. The researcher aims to find out how much influence the compressive strength of coco fiber concrete has with sea water as a solvent. The method used in this study was an experimental method, cylindrical concrete was printed with a size of 15x30 cm by adding coconut fiber to the concrete mixture with fc' quality of 22.5 MPa and as a comparison the researchers made samples of coconut fiber concrete with fresh water as a solvent. The results of this study with the addition of 1% fiber by weight of cement at the age of 3 days the compressive test reached 10.02 MPa for fresh water concrete and 6.51 MPa for sea water coir concrete. At the age of 7 days, fresh water concrete was 15.76 MPa, while coconut coir concrete was 7.42 MPa. For 28 days the fresh water concrete is 23.78 MPa, while the sea water coconut coir concrete is 14.72 MPa. The conclusion obtained in this research is that the use of sea water as a solvent in coconut coir concrete has decreased in strength by 23.53% compared to coconut coir concrete with fresh water as a solvent for 28 days of age.
Analysis of Plain and Threaded Spiral Reinforcement on The Compressive Strength of Concrete Cylinder with Coarse Agregate From Baula Mursalim La Ola; Fathur Rahman Rustan; Arman Hidayat; Nira Niza
JOURNAL OF CIVIL ENGINEERING BUILDING AND TRANSPORTATION Vol. 7 No. 2 (2023): JCEBT SEPTEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jcebt.v7i1.8953

Abstract

Column is a part of concrete structure that bears the largest axial compressive load. The use of stirrup reinforcement in columns can maintain strength and stability so that the load is distributed evenly. The Indonesian Structural Concrete Requirements for Building (SNI 2847:2019) requires the use of threaded steel bar in column structures. This research aims to determine the effect of using plain steel bars (BJTP) and threaded steel bars (BJTS) reinforcement with a spacing variation of 3 cm and 5 cm. The research was conducted by conducting cylinder concrete test with a diameter of 15 cm and a height of 30 cm, spiral reinforcement with a diameter of 10 cm, concrete cover of 25 mm, and plain and threaded steel bars with a diameter of 10 mm. The test object is divided into 5 conditions, namely without any reinforcement, plain steel bars reinforcement, threaded steel bars reinforcement, and variations of 3 cm and 5 cm spacing on each steel bar reinforcement. The concrete used is made of local materials Baula splits and Tamboli sands from Kolaka District. The test results on concrete at 28 days showed that the use of spiral reinforcement on cylinder concrete can significantly increase its compressive strength by more than 50%, even reaching above 100% at closer spacing. Spiral reinforcement with threaded steel bars shows better strength increase compared to spiral reinforcement with plain steel bars.
Co-Authors Al Tafakur La Ode Arif Arif Arif Arif Arman Hidayat Arman Hidayat Arya Dirgantara Arya Dirgantara Bagus Eko Prasetyo Devia Eka Rachmawati Fathur Rahman Rustan Haerul Purnama Hasriyanti Hasriyanti Ibnu Ramadhan Irka Sri Rezki Isramyano Yatjong La Ode Dzakir Mansyur Mansyur Masgode, Muhammad Buttomi Muhammad Bottomi Masgode Muhammad Buttomi Masgode Muhammad Buttomi Masgode Nira Niza Nurfasiha Nurfasiha Prasetyo, Bagus Eko Retno Puspaningtyas Retno Puspaningtyas Retno Puspaningtyas Rina Rembah Rizki Kumalasari Sahrul Poalahi Salu Sahrul Sahrul Sulha Sulha Suwarto Suwarto Syahrul Syahrul Wayan Mustika