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Rahmat, Mairizal, Majid MZBA, Ngian SP. The impact of implementing green elements on the toll roads of Indonesia. IOP Conf Ser : Earth Environ Sci 2023; 1205:012055. [DOI: 10.1088/1755-1315/1205/1/012055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
Along with the increasing development of toll road construction in Indonesia, the impact of carbon emissions will also increase. In terms of increasing toll road development in Indonesia, several elements can affect the number of carbon emissions in Indonesia, including these elements during the operation of the toll road. Therefore, from some of these elements, a study is needed to determine the effectiveness of the application of green elements that can reduce carbon emissions and measure the application of green elements on toll roads in Indonesia. Referring to previous studies, toll roads will continue to be a contributor to carbon dioxide emissions, when the government wants to continue implementing toll road projects, including in Indonesia. The purpose of this study is to identify the impact of implementing green elements in toll road development projects in Indonesia based on a literature review. This research uses literature study, data collection, and questionnaires which are analyzed using qualitative statistical analysis. The findings in this study are the green elements that have an impact on the implementation of toll road projects in Indonesia.
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Alyousef R, Mohammadhosseini H, Ebid AAK, Alabduljabbar H, Poi Ngian S, Huseien GF, Mustafa Mohamed A. Enhanced Acoustic Properties of a Novel Prepacked Aggregates Concrete Reinforced with Waste Polypropylene Fibers. Materials (Basel) 2022; 15:ma15031173. [PMID: 35161117 PMCID: PMC8839839 DOI: 10.3390/ma15031173] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/26/2022] [Accepted: 01/29/2022] [Indexed: 11/22/2022]
Abstract
This research aimed to investigate the performance of prepacked aggregates fiber-reinforced concrete (PAFRC) with adequate acoustic characteristics for various applications. PAFRC is a newly developed concrete made by arranging and packing aggregates and short fibers in predetermined formworks, then inserting a grout mixture into the voids amongst the aggregate particles using a pump or gravity mechanism. After a one-year curing period, the effects of utilizing waste polypropylene (PP) fibers on the strength and acoustic characteristics of PAFRC mixes were examined. Compressive and tensile strengths, ultrasonic pulse velocity (UPV), sound absorption, and transmission loss were investigated on plain concrete and PAFRC mixtures comprising 0–1% PP fibers. The results revealed that the use of PP fibers slightly decreased the compressive strength and UPV of PAFRC mixes. The inclusion of waste PP fibers also significantly increased the tensile strength and sound insulation coefficient of PAFRC mixes, especially at higher fiber dosages. In the medium-to-high frequency ranges, more than 60% acoustic absorption coefficient was observed, indicating that PAFRC specimens have good sound insulation properties.
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Affiliation(s)
- Rayed Alyousef
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
- Correspondence:
| | - Hossein Mohammadhosseini
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | | | - Hisham Alabduljabbar
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
| | - Shek Poi Ngian
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | - Ghasan Fahim Huseien
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
- Department of the Build Environment, School of Design and Environment, National University of Singapore, Singapore 117566, Singapore
| | - Abdeliazim Mustafa Mohamed
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
- Building and Construction Technology Department, Bayan University, Khartoum 11115, Sudan
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Alyousef R, Ebid AAK, Huseien GF, Mohammadhosseini H, Alabduljabbar H, Poi Ngian S, Mohamed AM. Effects of Sulfate and Sulfuric Acid on Efficiency of Geopolymers as Concrete Repair Materials. Gels 2022; 8:gels8010053. [PMID: 35049588 PMCID: PMC8774346 DOI: 10.3390/gels8010053] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 02/01/2023] Open
Abstract
Various geopolymer mortars (GPMs) as concrete repairing materials have become effective owing to their eco-friendly properties. Geopolymer binders designed from agricultural and industrial wastes display interesting and useful mechanical performance. Based on this fact, this research (experimental) focuses on the feasibility of achieving a new GPM with improved mechanical properties and enhanced durability performance against the aggressive sulfuric acid and sulfate attacks. This new ternary blend of GPMs can be achieved by combining waste ceramic tiles (WCT), fly ash (FA) and ground blast furnace slag (GBFS) with appropriate proportions. These GPMs were designed from a high volume of WCT, FA, and GBFS to repair the damaged concretes existing in the construction sectors. Flexural strength, slant shear bond strength, and compatibility of the obtained GPMs were compared with the base or normal concrete (NC) before and after exposure to the aggressive environments. Tests including flexural four-point loading and thermal expansion coefficient were performed. These GPMs were prepared using a low concentration of alkaline activator solution with increasing levels of GBFS and FA replaced by WCT. The results showed that substitution of GBFS and FA by WCT in the GPMs could enhance their bond strength, mechanical characteristics, and durability performance when exposed to aggressive environments. In addition, with the increase in WCT contents from 50 to 70%, the bond strength performance of the GPMs was considerably enhanced under sulfuric acid and sulfate attack. The achieved GPMs were shown to be highly compatible with the concrete substrate and excellent binders for various civil engineering construction applications. It is affirmed that the proposed GPMs can efficiently be used as high-performance materials to repair damaged concrete surfaces.
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Affiliation(s)
- Rayed Alyousef
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
- Correspondence:
| | - Ahmed Abdel Khalek Ebid
- Structural Engineering and Construction Management, Faculty of Engineering, Future University in Egypt, New Cairo 11835, Egypt;
| | - Ghasan Fahim Huseien
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
- Department of the Built Environment, College of Design and Engineering, National University of Singapore, Singapore 117566, Singapore
| | - Hossein Mohammadhosseini
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | - Hisham Alabduljabbar
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
| | - Shek Poi Ngian
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | - Abdeliazim Mustafa Mohamed
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
- Building and Construction Technology Department, Bayan University, Khartoum 11115, Sudan
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