Details
| Original language | English |
|---|---|
| Article number | 2062 |
| Number of pages | 20 |
| Journal | Buildings |
| Volume | 14 |
| Issue number | 7 |
| Publication status | Published - 5 Jul 2024 |
Abstract
Economic limitations often hinder the extensive use of fiber-reinforced concrete in full-scale structures. Addressing this, the present study explored localized reinforcement at critical interfaces, deploying a novel synchronized casting mold that deviates from segmented casting interface studies. The research prioritized the flexural, compressive, and shear characteristics at the interface between fiber-reinforced concrete and ordinary concrete with continuous casting. The results demonstrated that polyethylene (PE) fibers significantly enhance anti-cracking capabilities, surpassing steel fibers in all mechanical tests. PE fibers’ high modulus of elasticity and tensile strength considerably augmented the interface’s bending resistance, facilitating better load transfer and capitalizing on the fibers’ tensile properties. Additionally, their low density and greater dispersion negated the sinking behavior typical of steel fibers, thereby strengthening the compressive capacity of the interface. Although a 0.75% PE fiber volume is ideal for ductility, volumes as low as 0.25% or 0.5% are economically viable if dispersion is optimal. Conversely, steel fibers, prone to sinking and clustering, offer inferior shear resistance at the interface than PE fibers, marking a significant finding for structural applications.
Keywords
- economic efficiency, fiber concrete, interface, localized reinforcement
ASJC Scopus subject areas
- Engineering(all)
- Architecture
- Engineering(all)
- Civil and Structural Engineering
- Engineering(all)
- Building and Construction
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In: Buildings, Vol. 14, No. 7, 2062, 05.07.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Interface Characteristics between Fiber-Reinforced Concrete and Ordinary Concrete Based on Continuous Casting
AU - Cai, Minjin
AU - Zhu, Hehua
AU - Rabczuk, Timon
AU - Zhuang, Xiaoying
N1 - Publisher Copyright: © 2024 by the authors.
PY - 2024/7/5
Y1 - 2024/7/5
N2 - Economic limitations often hinder the extensive use of fiber-reinforced concrete in full-scale structures. Addressing this, the present study explored localized reinforcement at critical interfaces, deploying a novel synchronized casting mold that deviates from segmented casting interface studies. The research prioritized the flexural, compressive, and shear characteristics at the interface between fiber-reinforced concrete and ordinary concrete with continuous casting. The results demonstrated that polyethylene (PE) fibers significantly enhance anti-cracking capabilities, surpassing steel fibers in all mechanical tests. PE fibers’ high modulus of elasticity and tensile strength considerably augmented the interface’s bending resistance, facilitating better load transfer and capitalizing on the fibers’ tensile properties. Additionally, their low density and greater dispersion negated the sinking behavior typical of steel fibers, thereby strengthening the compressive capacity of the interface. Although a 0.75% PE fiber volume is ideal for ductility, volumes as low as 0.25% or 0.5% are economically viable if dispersion is optimal. Conversely, steel fibers, prone to sinking and clustering, offer inferior shear resistance at the interface than PE fibers, marking a significant finding for structural applications.
AB - Economic limitations often hinder the extensive use of fiber-reinforced concrete in full-scale structures. Addressing this, the present study explored localized reinforcement at critical interfaces, deploying a novel synchronized casting mold that deviates from segmented casting interface studies. The research prioritized the flexural, compressive, and shear characteristics at the interface between fiber-reinforced concrete and ordinary concrete with continuous casting. The results demonstrated that polyethylene (PE) fibers significantly enhance anti-cracking capabilities, surpassing steel fibers in all mechanical tests. PE fibers’ high modulus of elasticity and tensile strength considerably augmented the interface’s bending resistance, facilitating better load transfer and capitalizing on the fibers’ tensile properties. Additionally, their low density and greater dispersion negated the sinking behavior typical of steel fibers, thereby strengthening the compressive capacity of the interface. Although a 0.75% PE fiber volume is ideal for ductility, volumes as low as 0.25% or 0.5% are economically viable if dispersion is optimal. Conversely, steel fibers, prone to sinking and clustering, offer inferior shear resistance at the interface than PE fibers, marking a significant finding for structural applications.
KW - economic efficiency
KW - fiber concrete
KW - interface
KW - localized reinforcement
UR - http://www.scopus.com/inward/record.url?scp=85199584025&partnerID=8YFLogxK
U2 - 10.3390/buildings14072062
DO - 10.3390/buildings14072062
M3 - Article
AN - SCOPUS:85199584025
VL - 14
JO - Buildings
JF - Buildings
IS - 7
M1 - 2062
ER -