A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behavior of fiber reinforced polymer (FRP)- confined crumb rubber concrete at elevated temperatures
Researchers in the field of engineering and sciences have consistently carried out relevant studies on different ways to minimize the use of natural resources and to control environmental pollution. Aggregates used in concrete are generally obtained from rocks while huge collection of scrap tires are one of the biggest form of wastes in our societies throughout the world. Studies have shown that aggregates in conventional concrete (CC) can be partially replaced with crumb rubber particles, resulting in some decrease in strength properties. This type of concrete can be referred to as Crumb Rubber Concrete (CRC). Confinement of crumb rubber concrete and conventional concrete have shown to increase their compressive strengths. However, the behavior of CRC confined with Fiber Reinforced Polymer (FRP) sheets at elevated temperatures is still unknown. The knowledge and application of this could lead to a cost-effective and practical consideration in fire safety design. Therefore, this study examines the confined compressive strength of CRC confined with CFRP sheets at elevated temperatures. Finite Element Models (FEM) of CC and CRC with and without confinement were developed at room temperature and validated with literature, American Concrete Institute (ACI), and an indirect reference to the real behavior of the material. FEM results agreed reasonably with the real behavior from literature. Finite element models of confined CC and confined CRC were subjected to elevated temperature and compared with the finite element model of confined CC and confined CRC respectively at room temperature. It was found that models under service confined compressive stress subjected to elevated temperature experienced strength loss in the range of 46% to 51% when compared with the room temperature. Accordingly, a strength loss in the range of 34% - 56% was observed for models under maximum confined compressive stress. Finally, a practical application is provided.
Behavior of fiber reinforced polymer (FRP)- confined crumb rubber concrete at elevated temperatures
Researchers in the field of engineering and sciences have consistently carried out relevant studies on different ways to minimize the use of natural resources and to control environmental pollution. Aggregates used in concrete are generally obtained from rocks while huge collection of scrap tires are one of the biggest form of wastes in our societies throughout the world. Studies have shown that aggregates in conventional concrete (CC) can be partially replaced with crumb rubber particles, resulting in some decrease in strength properties. This type of concrete can be referred to as Crumb Rubber Concrete (CRC). Confinement of crumb rubber concrete and conventional concrete have shown to increase their compressive strengths. However, the behavior of CRC confined with Fiber Reinforced Polymer (FRP) sheets at elevated temperatures is still unknown. The knowledge and application of this could lead to a cost-effective and practical consideration in fire safety design. Therefore, this study examines the confined compressive strength of CRC confined with CFRP sheets at elevated temperatures. Finite Element Models (FEM) of CC and CRC with and without confinement were developed at room temperature and validated with literature, American Concrete Institute (ACI), and an indirect reference to the real behavior of the material. FEM results agreed reasonably with the real behavior from literature. Finite element models of confined CC and confined CRC were subjected to elevated temperature and compared with the finite element model of confined CC and confined CRC respectively at room temperature. It was found that models under service confined compressive stress subjected to elevated temperature experienced strength loss in the range of 46% to 51% when compared with the room temperature. Accordingly, a strength loss in the range of 34% - 56% was observed for models under maximum confined compressive stress. Finally, a practical application is provided.
Behavior of fiber reinforced polymer (FRP)- confined crumb rubber concrete at elevated temperatures
Alamutu, Ajibola Habeeb (author)
2018-05-01
Miscellaneous
Electronic Resource
English
DDC:
690
An experimental investigation of crumb rubber concrete confined by fibre reinforced polymer tubes
| British Library Online Contents | 2014
An experimental investigation of crumb rubber concrete confined by fibre reinforced polymer tubes
| British Library Online Contents | 2014
An experimental investigation of crumb rubber concrete confined by fibre reinforced polymer tubes
| Online Contents | 2014