Esmaeel Esmaeeli

• PhD
• Senior Lecturer at Brunel University London

** Link to the full text: http://hdl.handle.net/1822/40465 This research work deals with development of a novel retrofitting element for RC structures designated as “Hybrid Composite Plate (HCP)”. This prefabricated element is composed of a thin strain hardening cementitious composite (SHCC) plate reinforced with either near surface mounted CFRP...

The effectiveness of a repair strategy, for damaged RC beam-column joints, that combines strain hardening cementitious composite (SHCC) and laminates of carbon fiber reinforced polymers (CFRP laminates) is assessed in the present work. According to this technique, the existing concrete cover in the joint zone of the frame is replaced by a self-comp...

Hybrid Composite Plates (HCPs) made of a Strain Hardening Cementitious Composite (SHCC) and reinforced with Carbon Fiber Reinforced Polymer (CFRP) materials are developed by taking the synergetic advantages of SHCC and CFRP for the retrofitting of reinforced concrete (RC) structures. Thanks to the high ductile character of SHCC, this prefabricated...

The effectiveness of prefabricated hybrid composite plates (HCPs) as a seismic retrofitting solution for damaged interior RC beam-column joints is experimentally studied. HCP is composed of a thin plate made of strain hardening cementitious composite (SHCC) reinforced with CFRP sheets/laminates. Two full-scale severely damaged interior beam-column...

The bond behaviour between fiber-reinforced polymer (FRP) and concrete plays a critical role in the performance of FRP-strengthened reinforced concrete (RC) structures. While extensive research has been conducted on debonding failures, existing studies predominantly treat concrete as homogeneous, neglecting its inherent heterogeneity. This paper pr...

This paper describes the full-scale testing of a 6.0 m long by 2.0 m wide BladeBridge at the Creagh quarry in Draperstown, Northern Ireland in May 2023 by the ReWind Network. The bridge was constructed on site in April 2022. Preparations for the full-scale testing began soon after the construction was completed. The testing plan was developed in co...

In this paper, the reliability of a cable-stayed bridge with a span of 640m is investigated and compared in three different scenarios. While both the first and second scenarios assumed a fixed end for the bridge supports used, they differed in terms of material and geometric behavior. Finally, the third scenario differed from the second by incorpor...

This study explores the benefits of combining Strain Hardening Cementitious Composite (SHCC) with biaxial Polyvinyl Alcohol (PVA) mesh to develop TR-SHCC. The hydrophilic nature and modulus of elasticity of PVA foster a strong bond and efficient stress redistribution within the composite. Tensile testing of a PVA-SHCC reinforced with different layo...

Fibre Reinforced Polymers (FRPs) are extensively employed to strengthen existing structures because of their several advantages over other strengthening techniques. On the other hand, the premature debonding of FRP reduces its effectiveness in strengthening steel structures. Anchoring FRP composites is an effective solution to delay or even prevent...

In this study, a repeated drop-weight test on a 50 mm thick four-side fixed UHPFRC plate was carried out. A high-speed 3D Digital Image Correlation technique (3D DIC) was employed to capture the full-field response of the plate during impact loading. The DIC results were validated against the measurements of physical accelerometer and strain sensor...

In this study, the effectiveness of two retrofitting solutions for the repair and upgrading of severely damaged substandard RC beam-column joints is examined and compared. Both solutions are made of CFRP reinforced SHCC (Strain Hardening Cementitious Composite). However, whilst one of the solutions follows a cast-in-situ retrofitting strategy, the...

Extensive experimental and numerical studies have been conducted to understand the bond behaviour of FRP-concrete interfaces with the assumption of homogenous materials. This study is aimed at a better understanding of the effects of concrete heterogeneity on the FRP-concrete bond behaviour, by a combination of experiments and mesoscale numerical m...

Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC) has received extensive attention due to its excellent mechanical properties. UHPFRC not only offers a very high compressive strength, but also a unique tensile strain-hardening behaviour. The casting method is critical as it determines the fibre alignment, which in turn affects the performan...

Advanced fibre-reinforced polymer (FRP) composites have been widely used for strengthening concrete structures. The bond behaviour between FRP and concrete plays the crucial role in this technique. Commonly the test of this bond behaviour is conducted using a single or double shear pull-off test of an FRP-to-concrete bonded joint, or similar bendin...

Advanced fibre-reinforced polymer (FRP) composites have been widely used for strengthening concrete structures. The bond behaviour between FRP and concrete plays the crucial role in this technique. Commonly the test of this bond behaviour is conducted using a single or double shear pull-off test of an FRP-to-concrete bonded joint, or similar bendin...

Externally bonding of fiber reinforced polymer (FRP) composites has been widely used for strengthening existing reinforced concrete structures. In this technique, the bond properties between FRP and concrete play a critical role in the strengthening joint. This has led to numerous numerical and experimental investigations. This paper presents the r...

Hybrid Composite Plate (HCP) is a novel retrofitting element which is tailored to be significantly free of the shortcomings identified in commonly used strengthening systems (e.g. FRP and TRM), mainly durability and connection reliability issues. HCP utilizes the synergetic advantages of Strain Hardening Cementitious Composite (SHCC) and Carbon Fib...

This paper is focused on the performance of a proposed scheme for seismic strengthening of shear deficient joints of 3D reinforced concrete (RC) corner beam-column connections. This technique is composed of a combination of GFRP sheets and a steel cage, and does not require perforating the existing concrete elements to anchor the FRP sheets. Two si...

Hybrid Composite Plate (HCP) is a reliable recently proposed retrofitting solution for concrete structures, which is composed of a strain hardening cementitious composite (SHCC) plate reinforced with Carbon Fibre Reinforced Polymer (CFRP). This system benefits from the synergetic advantages of these two composites, namely the high ductility of SHCC...

A novel prefabricated panel is introduced for the repair and strengthening of damaged interior RC beam-column joints. This prefabricated hybrid composite plate (HCP) is made of a Strain Hardening Cementitious Composite (SHCC) reinforced with CFRP materials. Besides the higher durability of this system when compared to EB-FRP, thanks to the high duc...

To assess the strengthening ability of a strain hardening cementitious composite (SHCC), a layer of SHCC was applied to masonry beams subjected to bending. When compared to the strengthening performance of steel fibre reinforced self-compacting concrete (SFRSCC) layer for this type of brittle beams, the SHCC presented better work-ability in fresh s...