A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Interfacial response of composite reinforcement contacted with a highperformance cementitious material
Glass fiber reinforced polymer (GFRP) composite bars are a promising material that can replace conventional steel reinforcement. GFRP is a non-metallic reinforcing material and thus corrosion will not occur during its service life. Given the tensile strength of GFRP bars is significantly higher than the yield strength of steel bars, GFRP may be more suitable for high-performance concrete (HPC) application rather than normal concrete. High-performance concrete inhibits moisture ingress into the core of the concrete due to its low permeability associated with a low water-cement ratio. Self-desiccation of HPC thus takes place and causes autogenous shrinkage. Autogenous shrinkage results in significant cracking of a structural member made of HPC and may lead to premature failure. To avoid this problem, a certain amount of humidity inside the concrete needs to be maintained while the hydration process of the cement is active. An emerging curing agent is used for the present research to overcome this critical issue. The paper presents the interfacial behavior of the composite reinforcement when contacted with the high performance concrete material. Push-out bond tests are conducted to achieve this research objective. Emphasis is given to interfacial capacity, failure mode, and fracture energy.
Interfacial response of composite reinforcement contacted with a highperformance cementitious material
Glass fiber reinforced polymer (GFRP) composite bars are a promising material that can replace conventional steel reinforcement. GFRP is a non-metallic reinforcing material and thus corrosion will not occur during its service life. Given the tensile strength of GFRP bars is significantly higher than the yield strength of steel bars, GFRP may be more suitable for high-performance concrete (HPC) application rather than normal concrete. High-performance concrete inhibits moisture ingress into the core of the concrete due to its low permeability associated with a low water-cement ratio. Self-desiccation of HPC thus takes place and causes autogenous shrinkage. Autogenous shrinkage results in significant cracking of a structural member made of HPC and may lead to premature failure. To avoid this problem, a certain amount of humidity inside the concrete needs to be maintained while the hydration process of the cement is active. An emerging curing agent is used for the present research to overcome this critical issue. The paper presents the interfacial behavior of the composite reinforcement when contacted with the high performance concrete material. Push-out bond tests are conducted to achieve this research objective. Emphasis is given to interfacial capacity, failure mode, and fracture energy.
Interfacial response of composite reinforcement contacted with a highperformance cementitious material
Wang, Jun (author) / Kim, Yail J. (author)
2014
11 Seiten, Bilder, Tabellen, 7 Quellen
Conference paper
Storage medium
English
Reducing Carbon Dioxide Emissions and Energy Use with Highperformance Glass
| British Library Conference Proceedings | 2001
FIBER REINFORCEMENT MATERIAL FOR CEMENTITIOUS COMPOSITIONS
| European Patent Office | 2024
Chloride Threshold Levels, Corrosion Rates and Service Life for Cracked Highperformance Concrete
| British Library Conference Proceedings | 1997
GAS PRESSURE-CONTACTED REINFORCEMENT COUPLER AND REINFORCEMENT CONNECTION METHOD OF USING THE SAME
| European Patent Office | 2018
OVERVIEW OF ANCHORAGE PROBLEMS OF REINFORCING BARS IN HIGHPERFORMANCE SILICA FUME CONCRETE
| British Library Conference Proceedings | 2000