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논문 기본 정보

자료유형
학술저널
저자정보
Naraindas Bheel (Universiti Teknologi PETRONAS) Abhijeet Vidyadhar Baikerikar (Universiti Teknologi PETRONAS) Bashar S. Mohammed (Universiti Teknologi PETRONAS)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.19 No.2
발행연도
2025.3
수록면
485 - 507 (23page)

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The construction sector is promoting eco-friendly materials to combat global warming. Researchers use crumb rubber (CR) in concrete due to its ductility and hardness, but studies show it can decrease strength. Therefore, the addition of PVA fiber improves the mechanical properties of CR concrete. The research aims to assess the mechanical and physical characteristics of concrete by utilizing RSM modeling and optimization, comparing the effects of CR replacement for sand and PVA fiber by volume fraction. It has been observed that the optimum compressive, tensile and flexural strengths were observed by 49 MPa, 4.31 MPa, and 5.88 MPa at 10% of sand replaced with CR and 1.5% of PVA fiber together at 28 days, respectively. In addition, water absorption improves with increased CR and PVA fiber in concrete, while dry density decreases with increased CR and PVA fiber quantity in concrete at 28 days, respectively. Moreover, RSM was utilized to develop response prediction models with R² coefficients ranged from 97 to 99%. Furthermore, the enhancement of embodied carbon is seen when the volume percent of PVA fiber and CR increases in concrete. Additionally, using 10% CR instead of sand and adding 1.5% PVA fiber has been proven to deliver favourable outcomes for the construction sector therefore it is recommended for construction purpose.

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Abstract
1. Introduction
2. Experimental program
3. Results and discussion
4. Sustainability assessment
5. Optimization and modeling by response surface methodology (RSM)
6. Conclusions
References

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