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All Journal Sultra Civil Engineering Journal (SCiEJ)
Sulaiman sulaiman
Universitas Sulawesi Tenggara
Civil Engineering, Building, Construction & Architecture Transportation

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Testing the Compressive Strength of Concrete with the Addition of Coconut Shell Waste Nadya Ayu Pratiwi; Irwan Lakawa; Sulaiman Sulaiman; Hujiyanto Hujiyanto
Sultra Civil Engineering Journal Vol 3 No 2 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (448.395 KB) | DOI: 10.54297/sciej.v3i2.350

Abstract

The purpose of this study was to (1) analyze the characteristics of fresh concrete with the addition of coconut shell waste (2) to analyze the compressive strength of concrete with the addition of coconut shell. The research location for making concrete was carried out at the Laboratory of the construction of the water resources and community development department of the Southeast Sulawesi provincial government. There were 24 specimens printed in the form of a cylinder with dimensions of 30cm x 15cm with the composition of adding 0%, 5%, 10%, and 15% coconut shell waste. Which was then tested for compressive strength at the age of 7, 14, and 28 days. Based on the compressive strength test with a quality plan of f'c 20 MPa, on the 28 day test with the addition of 0% is 23.71 MPa, the addition of 5% is 20.59 MPa, the addition of 10% is 19.97 MPa, and an additional 15% is 13.53 MPa. Coconut shell as a substitute for coarse aggregate for quality f'c 20 MPa can only be used under 10% of the amount of coarse aggregate.
Modified Asphalt Mix Performance With The Addition Of Human Hair Waste Zulfikar Zulfikar; Irwan Lakawa; Sulaiman Sulaiman; Sitti Hawa
Sultra Civil Engineering Journal Vol 3 No 2 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.326 KB) | DOI: 10.54297/sciej.v3i2.367

Abstract

The development of road infrastructure in Indonesia is currently increasing, starting with new road construction projects to road improvement projects. To prevent premature damage to road pavements due to loading and the influence of water, it is to improve the quality of asphalt as a binder material from aggregate in the composition of road pavements. especially for the Asphalt Concrete-Binder Course (AC-BC) mixture, the addition of human hair waste can be used as an added material to minimize the use of asphalt and overcome the weaknesses of asphalt and waste utilization.The objectives of the study were: (1) to analyze the characteristics of the modified asphalt mixture with the addition of human hair waste. (2) Analyzing the performance of modified asphalt mixture with the addition of human hair waste.The results of analysis and testing in the laboratory show that the modified asphalt mixture performance with the addition of hair will increase the density value up to 2,355 gr/cc, increase the stability value up to 1886,2 kg, increase the value of the asphalt filled cavity (VFB) up to 82.8% and increase the Marshall value. Quotient (MQ) up to 653.3 kg/mm, but will reduce the value of the melt (flow) up to 2.9 mm, reduce the value of voids between mineral aggregates (VMA) up to 15.8% and reduce the value of mixed air voids (VIM) up to 2.7% but still within the threshold of meeting specifications
Evaluation of the Performance of the Roraya I Irrigation Network in Baito District in South Konawe Regency Eka Didi Saputra; Irwan Lakawa; Sulaiman Sulaiman; Syamsuddin Syamsuddin
Sultra Civil Engineering Journal Vol 4 No 1 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i1.457

Abstract

Development and management of irrigation networks requires good infrastructure so that it will support increased food production, improve community welfare and optimize the use of water resources. The purpose of the study was to analyze the performance of the physical infrastructure irrigation system in the Roraya I Irrigation Area, and to analyze the handling of the physical infrastructure irrigation system performance in the Roraya I Irrigation Area The results of the analysis of the performance of irrigation networks on physical infrastructure are lacking and need attention, with a weight value of 59.44%, and for handling irrigation networks on physical infrastructure in the form of maintenance that is heavy repair or replacement
Testing The Compressive Strength Of Concrete With The Utilization Of Rice Husk Ash And Palm Fiber Muh. Wonua Bhakti Aslon; Irwan Lakawa; Sulaiman Sulaiman; Sitti Hawa
Sultra Civil Engineering Journal Vol 4 No 1 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i1.458

Abstract

Development in the field of structure is currently progressing very rapidly in various field so that concrete is one of the choices as a structural material in building construction, basically concrete is made by mixing portland cement, coarse aggregate, fine aggregate, and water as a binder for these materials. Due to the development of the issue of current resource limitations, the prevention is by innovating the manufacture of concrete using palm fiber waste as an added ingredient from sand and rice husk ash waste as an added ingredient from cement. The purpose of study was to (1) analyze the compressive strength of concrete with variations ini rice husk ash and palm fiber (2) analyze the addition of rice husk ash and palm fiber with different mixture variations that could affect the compressive strength of concrete. The result showed that normal concrete with an average compressive strength of 24.20 MPa and an increase in compressive strength with a mixture of 0.5% palm fiber and 5% rice husk ash with an average strength of 25.90 MPa without using superplasticizer, if the variation mixture exceeding the mixed variation of 0.5% palm fiber and 5% rice husk ash will deacrease
Co-Authors Abdul Kadir Catrin Sudardjat Dian Fitrawansyah Eka Didi Saputra Hayadi Hayadi Hujiyanto Huiyanto Irwan Lakawa La Derita Florentinus M Basri Muh. Fiqram Abdillah Muh. Wonua Bhakti Aslon Muhammad Muhsar Nadya Ayu Pratiwi Neti Rahmawati Sitti Hawa Sufrianto, Sufrianto Suhardin Mangidi Sunandar Raksi Sunaryo Sunaryo Syamsuddin Syamsuddin Vickky Anggara Ilham Zulfikar Zulfikar