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Djamaluddin, Rudy
Civil Engineering Department, Faculty Of Engineering, Hasanuddin University, Indonesia
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Journal : Civil Engineering Journal

 1 
Bond between Steel Reinforcement Bars and Seawater Concrete Adnan, Adnan; Parung, Herman; Tjaronge, M. W.; Djamaluddin, Rudy
Civil Engineering Journal Vol 6 (2020): Special Issue "Emerging Materials in Civil Engineering"
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2020-SP(EMCE)-06

Abstract

In order to promote sustainable development in the remote islands this present research attempted to study the suitability of seawater, that available abundantly surrounding the remote islands with Portland composite cement (PCC) and crushed river stones to produce concrete. This research aims to utilize seawater, and Portland composite cement (PCC) to produce high-performance concrete in order to eliminate the main problems of clean water shortage in the low land areas and the remote islands. Infrastructure development can be sustained through the effective use of natural available local materials on the remote islands. The method used in this research is an experimental method in the laboratory. Two variations of concrete were made using freshwater and seawater, respectively as a mixing material with a water to cement ratio (w/c) of 0.55. The evaluation result on concrete compressive strength and bond strength of seawater concrete were discussed. Experimental results showed the compressive strength of the seawater concrete is lower by 6.26% as compared to the normal concrete at water-cement ratio (w/c) of 0.55. In addition, the bonding strength of steel bar embedded in seawater concrete is lower by 4.34% as compared to the bonding strength of steel bar embedded in normal concrete at water-cement ratio (w/c) of 0.55. Doi: 10.28991/cej-2020-SP(EMCE)-06 Full Text: PDF
Flexural Behavior of Normal and Lightweight Concrete Composite Beams Syahrul Syahrul; M. W. Tjaronge; Rudy Djamaluddin; A. A. Amiruddin
Civil Engineering Journal Vol 7, No 3 (2021): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/cej-2021-03091673

Abstract

This paper presents an experimental study of the behavior of Normal Concrete Beams (NCB) and composite beams with lightweight foamed concrete (CB), reinforced with steel bar measuring 2 f 8 mm in the compressive section and 2 D 16 mm in the tensile section, shear steel bar f 8 mm. The sample consisted of two normal concrete beams (NCB) and two composite beams with lightweight foamed concrete (CB). The main variables in this study are the type of concrete, the type of steel bar and the flexural behavior. The beam samples were tested by two-point loading, failure mode and crack width were observed. The results showed that the flexural process of normal concrete blocks (NCB) and composite beams with lightweight foamed concrete (CB) was almost the same. There is no slip failure at the combined interface, the flexural capacity of the composite beam with lightweight foamed concrete can be calculated based on the statics analysis and plane-section assumptions. To calculate the ultimate capacity of a composite beam with lightweight foamed concrete is to convert a section consisting of more than one fc' to an equivalent section consisting of one fc'. Furthermore, it is validated by calculating the theoretical moment capacity and comparing the theoretical moment capacity of the experimental results. The results of the flexural test, composite beam with lightweight foamed concrete (CB) showed ductile deflection behavior, diagonal crack patterns, and low flexural capacity of the beam (NCB). Doi: 10.28991/cej-2021-03091673 Full Text: PDF
Co-Authors . Faimun . Yasser A. A. Amiruddin A. Arwin Amiruddin Abdul Rahman Djamaluddin Achmad Bakri Muhiddin Adnan Adnan Amir, Andi Ahdan Andi Arwin Amiruddin Anthonius Fredirik Raffel Arbain Tata Ardi Arsyad Bambang Bakri Caronge, Muhammad Akbar Darwis, Mardis Dewi Sulistyorini Fakhruddin - Fakhruddin Fakhruddin Gambiro Soeprapto Gaus, Abdul Harusi, Nurul Masyiah Rani Husein, Saddam - I Gusti Putu Raka Irawan, Candra Irmawaty, Rita Jasman Kwandou, Robby M. W. Tjaronge M. Wihardi Tjarong, M. Wihardi M. Wihardi Tjaronge Mufti Amir Sultan, Mufti Amir Muhammad Wihardi Tjaronge Mushar, Pratiwi Nur Ali Parung, Herman Priyo Suprobo Raffel, Anthonius Fredirik Robby Kwandou Sabaruddin Sabaruddin Shirly Wunas Sitti Hijraini Nur Syahrul Syahrul Tengku Riza Zarzani N Tjaronge M. W., Tjaronge M. Tjaronge, M. W. Tri Harianto Tumingan Tumingan Victor Sampebulu Wardhana, Radix Dwi Wihardi Tjaronge Wihardy Tjaronge Yuliandi Abubakar Zultan Mansur, Achmad