Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Behavior of Damaged Reinforced Rubberized Concrete Beams Strengthen with Carbon Fiber Reinforced Polymers
Developing rubberized concrete (RuC) for structural applications is an excellent solution for the scarcity of natural aggregates and the discharge of rubber waste in bulk volumes into the natural environment. With the successful applications of rubberized concrete in structural elements, it is important to explore successful alternatives for restoration in case of deficiencies met in their service life. This study investigates the flexure behavior of damaged reinforced rubberized concrete beams strengthened with Carbon Fiber Reinforced Polymer (CFRP) fabric. A total of four medium-scale non-strengthened reinforced rubberized concrete beams and a normal concrete beam were pre-loaded until a 0.3 mm crack occurred. Then the damaged beams were strengthened using CFRP with and without polymer anchors at the ends of the bonded fabric. Four-point bending test was conducted subsequent application of cyclic load with the amplitude of 50% and 75% of the ultimate load. CFRP-strengthened reinforced rubberized concrete beams could reach a 53% higher load with 61% less displacement until a 0.3 mm crack occurs than non-strengthened reinforced RuC beams. It was found that the U-wrap end anchorage system increased the ultimate load by 5% than without end anchorage, delaying the debonding of CFRP fabric. Strengthened RuC beams also showed a similar load–displacement curve pattern as normal concrete beam. Overall, the experimental results exhibited the feasibility of strengthening rubberized concrete beams in structural applications with CFRP fabric.
Behavior of Damaged Reinforced Rubberized Concrete Beams Strengthen with Carbon Fiber Reinforced Polymers
Developing rubberized concrete (RuC) for structural applications is an excellent solution for the scarcity of natural aggregates and the discharge of rubber waste in bulk volumes into the natural environment. With the successful applications of rubberized concrete in structural elements, it is important to explore successful alternatives for restoration in case of deficiencies met in their service life. This study investigates the flexure behavior of damaged reinforced rubberized concrete beams strengthened with Carbon Fiber Reinforced Polymer (CFRP) fabric. A total of four medium-scale non-strengthened reinforced rubberized concrete beams and a normal concrete beam were pre-loaded until a 0.3 mm crack occurred. Then the damaged beams were strengthened using CFRP with and without polymer anchors at the ends of the bonded fabric. Four-point bending test was conducted subsequent application of cyclic load with the amplitude of 50% and 75% of the ultimate load. CFRP-strengthened reinforced rubberized concrete beams could reach a 53% higher load with 61% less displacement until a 0.3 mm crack occurs than non-strengthened reinforced RuC beams. It was found that the U-wrap end anchorage system increased the ultimate load by 5% than without end anchorage, delaying the debonding of CFRP fabric. Strengthened RuC beams also showed a similar load–displacement curve pattern as normal concrete beam. Overall, the experimental results exhibited the feasibility of strengthening rubberized concrete beams in structural applications with CFRP fabric.
Behavior of Damaged Reinforced Rubberized Concrete Beams Strengthen with Carbon Fiber Reinforced Polymers
Lecture Notes in Civil Engineering
Dissanayake, Ranjith (Herausgeber:in) / Mendis, Priyan (Herausgeber:in) / De Silva, Sudhira (Herausgeber:in) / Fernando, Shiromal (Herausgeber:in) / Konthesingha, Chaminda (Herausgeber:in) / Attanayake, Upul (Herausgeber:in) / Gajanayake, Pradeep (Herausgeber:in) / Maleesha, R. K. S. (Autor:in) / Gamage, J. C. P. H. (Autor:in) / Chandrathilaka, E. R. K. (Autor:in)
International Conference on Sustainable Built Environment ; 2023 ; Kandy, Sri Lanka
Proceedings of the 14th International Conference on Sustainable Built Environment ; Kapitel: 16 ; 209-221
28.08.2024
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Flexural Behavior of Steel Fiber-Reinforced Rubberized Concrete
| Online Contents | 2016
Flexural Behavior of Steel Fiber-Reinforced Rubberized Concrete
| British Library Online Contents | 2016