A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
On the durability of composite rehabilitation schemes for concrete: use of a peel test
The widespread deterioration of infrastructure due to age, environmental factors and steadily increasing highway traffic patterns (load and frequency) has created a critical need for cost-effective and durable materials and technologies for use in rehabilitation and retrofit. Composites present a potentially cost-efficient and more durable alternative to the use of externally bonded steel plates for the rehabilitation and strengthening of concrete members, due to their high stiffness-to-weight and strength-to-weight ratios, corrosion resistance and overall ease of application in the field. Although a number of demonstration projects have shown the inital viability of such schemes, a number of critical questions still remain as related to short- and long-term durability as well as damage and failure mechanisms. In this paper a modified peel test is used to investigate the durability of the bond between concrete and composites under five different environmental exposure regimes. Two different epoxies were used with E-glass and carbon fibre reinforced composites. Differences in peel force and interfacial fracture energies based on material and environmental influences are discussed and modes of failure are presented.
On the durability of composite rehabilitation schemes for concrete: use of a peel test
The widespread deterioration of infrastructure due to age, environmental factors and steadily increasing highway traffic patterns (load and frequency) has created a critical need for cost-effective and durable materials and technologies for use in rehabilitation and retrofit. Composites present a potentially cost-efficient and more durable alternative to the use of externally bonded steel plates for the rehabilitation and strengthening of concrete members, due to their high stiffness-to-weight and strength-to-weight ratios, corrosion resistance and overall ease of application in the field. Although a number of demonstration projects have shown the inital viability of such schemes, a number of critical questions still remain as related to short- and long-term durability as well as damage and failure mechanisms. In this paper a modified peel test is used to investigate the durability of the bond between concrete and composites under five different environmental exposure regimes. Two different epoxies were used with E-glass and carbon fibre reinforced composites. Differences in peel force and interfacial fracture energies based on material and environmental influences are discussed and modes of failure are presented.
On the durability of composite rehabilitation schemes for concrete: use of a peel test
Über die Haltbarkeit von Betonreparaturen unter Verwendung von Verbundwerkstoffen: Die Verwendung einer Schälprüfung
Karbhari, V.M. (author) / Engineer, M. (author) / Eckel, D.A. II (author)
Journal of Materials Science ; 32 ; 147-156
1997
10 Seiten, 18 Bilder, 3 Tabellen, 41 Quellen
Article (Journal)
English
Verbundwerkstoff , Platte (Bauteil) , carbonfaserverstärkter Kunststoff , glasfaserverstärkter Kunststoff , Epoxidharz , Kleben (Verbinden) , Beton , Reparatur , Alterungsbeständigkeit , Temperaturbeständigkeit , Witterungsbeständigkeit , Bautechnik , Schälprüfung , Adhäsion , Grenzfläche , Bruchfestigkeit , Materialbruch
On the durability of composite rehabilitation schemes for concrete: use of a peel test
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