The durability of bond between carbon fibre-reinforced polymer (CFRP) laminates and concrete with the externally bonded reinforcement (EBR) technique was investigated under real-time field exposure (RTFE) accelerated ageing. experimental program, over two years, includes four outdoor environments inducing carbonation, freeze–thaw attack, extreme temperatures, airborne chlorides from ocean. A laboratory environment (20 °C/55% RH) used as reference environment. Additionally, a water-immersion...

Application of carbon fibre reinforced polymer (CFRP) composites in strengthening existing concrete (RC) structures has been widely accepted. However, the durability adhesively bonded CFRP-concrete joint not yet fully investigated, which therefore paves way to topic addressed this work: elements strengthened with CFRP laminate using externally reinforcement (EBR) technique. Concrete were kept laboratory-controlled environments (approximately 20 °C/55 % RH, and water immersion at °C), while...

This work addresses the durability of structural epoxy adhesives and carbon fibre reinforced polymer (CFRP) laminates typically used in strengthening existing concrete structures exposed to natural ageing. The experimental program included four (real) outdoor environments inducing ageing mainly caused by carbonation, freeze-thaw attack, elevated temperatures, airborne chlorides from seawater. Moreover, a control (reference) environment (20 °C temperature 55% relative humidity) an involving...

Carbon fiber reinforced polymer (CFRP) composites can be used to strengthen existing concrete (RC) structures. The CFRP laminate bonded RC structure using epoxy adhesive via near-surface mounted (NSM) strengthening technique. However, literature generally lacks data about durability of NSM CFRP-to-concrete bond. In this study, strengthened elements were exposed laboratory-controlled environments (at approximately 20 °C/55 % RH, and water immersion at °C) natural field (to promote aging...

In last decades significant investigation has been carried out in order to predict the bond strength of externally bonded reinforcement (EBR) systems with carbon fiber reinforced polymer (CFRP) materials concrete and, as consequence that, many analytical expressions can be found literature, including standards. However, these do not account for influence several parameters on behavior such type surface preparation which is a mandatory and critical task strengthening application. The present...

Carbon fiber reinforced polymer (CFRP) composites have shown desirable properties in aerospace, automotive, and construction industries. Focusing on the latter context of strengthening existing structures, CFRP are typically bonded to concrete structures using epoxy adhesive as a bonding agent. To date, there is lack literature durability both composite adhesive. In this regard, two different commercially available laminates adhesives was assessed after exposure indoor outdoor environments...

Clinical data is growing every day. Ergo, to treat, store and publish such an emergent task. Furthermore, analysing in real-time using streaming processing technologies methods, order obtain quality data, prepared support decision making of extreme value. Big Data emerged with the introduction processing, thus revolutionizing traditional techniques through ability deal volume, speed variety data. Countless studies have been proposed healthcare domain search solutions that allow flow...

This investigation addresses the durability of adhesive bond between near-surface-mounted (NSM) carbon fiber-reinforced polymer (CFRP) strips and concrete, under real-time field conditioning laboratory-accelerated conditioning. Four natural outdoor environments were considered in experimental program to induce aging mainly by carbonation, freeze-thaw cycles, elevated temperatures, airborne chlorides from seawater. Additionally, a control environment (20°C 55% RH) water immersion controlled...

Application of carbon fibre reinforced polymer (CFRP) composites in strengthening existing concrete (RC) structures has been widely accepted. However, the durability adhesively bonded CFRP-concrete joint not yet fully investigated, which therefore paves way to topic addressed this work: elements strengthened with CFRP laminate using externally reinforcement (EBR) technique. Concrete were kept laboratory-controlled environments (approximately 20 °C/55% RH, and water immersion at °C), while...

Public service is a process of helping other people in certain ways that require sensitivity and interpersonal relationships to create satisfaction success. Services produce products, both the form goods services. services have three important elements, namely, provider organization, recipient, namely community interested organizations, received by recipient. An empirical juridical approach (non-doctrinal) method with secondary data used understand ideal public services, while primary...

Colombia posee una infraestructura considerable de puentes debido a sus características topográficas variadas. Se tiene conocimiento que en el país un 29% los víasprincipales es concreto pre-esforzado y 19% acero concreto. Estas estructuras se deterioran continuamente gran velocidad entre otros factores, las condiciones encuentran expuestos: tipos cargas sobrecargas, ambientales, deterioros por afectación química, daños físicos, movimientos sísmicos corrosión del refuerzo otros, generando...

<p>Over the last two decades, use of fibre reinforced polymer (FRP) materials for strengthening existing concrete (RC) structures has been constantly increasing, and nowadays it is considered state-of-the-art frequently used by construction industry. Typically, these composite are externally bonded (EBR technique) or near-surface-mounted (NSM on elements to be retrofitted. Although substantial research performed design rules have established, most studies focused short-term structural...