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Abstract Lightweight concrete (LWC) is one of the most important building materials nowadays. Many research studies were focused on LWC produced using lightweight aggregates. However, limited work was cited for polystyrene beads. In this study, beams strengthened with carbon fibre reinforced polymer (CFRP) and glass (GFRP) experimentally tested to investigate improvement in their flexural shear...

Some of the advantages that results from the structural strengthening of concrete slabs using prestressed fiber reinforced polymer (FRP) systems are as follows: the prestressed FRP delays the formation and propagation of cracks, and both the serviceability and the flexural capacity are increased. In this research program, the flexural performance of a concrete slab strengthened with a three-sta...

The objective of this paper was to explore the bond-slip relationship between carbon fiber-reinforced polymer (CFRP) sheets and concrete under cyclic loading through experimental and analytical approaches. Modified beam tests were performed in order to gain insight into the bond-slip relationship under static and cyclic loading. The test variables are the CFRP-to-concrete width ratio, and the b...

The effectiveness of externally applied fiber-reinforced polymer (FRP) ropes made carbon fibers in X-shape formation and both sides the joint area reinforced concrete (RC) beam–column connections is experimentally investigated. Six full-scale exterior RC specimens are tested under reverse cyclic deformation. Three them have been strengthened using FRP (CFRP) that placed diagonally as additional...

Using of CFRP carbon sheets because of their high strength, lightness and ease of use have been very expanded in retrofitting concrete members. Including shear walls systems FRP can be used in order to rebuild or maintain the strength of an aged structural member. Repairing, or retrofitting of the intact structural member is conducted to enhance the structural resistance that was deteriorated d...

Many steel structures are in need of strengthening due to reqUirements to increase carrying capacity and/or rehabili tation due to corrosion degradation. This paper summarizes the results of an investigation that has been conducted to evaluate the performance of carbon fiber reinforced polymer (CFRP) materials to increase the strength and stiffness of steel structures. Two types of specimens we...

Carbonfiber-reinforced polymer (CFRP) composites are frequently utilized in the repair and reinforcement of reinforced concrete members because they more corrosion-resistant, durable, flexible than commonly used materials like steel plates. Many studies have demonstrated that use CFRP as an internal strengthening material has a substantial impact on shear capacity RC beams. This research looks ...

The technique of strengthening steel structures with Carbon Fibre Reinforced Polymer (CFRP) has attracted growing attention in research field and in practice and its environmental durability is of high importance. This paper describes an investigation on the bond characteristics between high modulus CFRP sheet and steel plates under elevated temperature exposures. Tensile tests were carried out...