A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Environmental Durability Evaluation of Externally Bonded Composites
The durability of three types of fiber-reinforced polymer (FRP) composites used for strengthening of concrete structures was evaluated. The materials were: (1) carbon FRP (CFRP) plate, carbon FRP (CFRP) fabric, and glass FRP (GFRP) fabric. The influence of a number of conditions commonly encountered in civil infrastructure on strength and other critical properties of the material and bond to substrate concrete was evaluated. In particular, the following exposures, with durations up to 10,000 hours, were considered: (a) 100% humidity, (b) alkalinity, (c) salt water, (d) dry heat, (e) freeze/thaw cycling, (f) vehicle fuel, and (g) UV radiation. Potential deterioration of material and bond properties as a result of these conditions was established by comparing the properties of the unconditioned and conditioned samples. The test specimens consisted of 507 material samples, 168 bond specimens, and 162.44-m long reinforced concrete beams. Reinforced concrete beams strengthened with the three materials were exposed to a combined treatment of freeze/thaw cycling and UV radiation, and tested in flexure.
Environmental Durability Evaluation of Externally Bonded Composites
The durability of three types of fiber-reinforced polymer (FRP) composites used for strengthening of concrete structures was evaluated. The materials were: (1) carbon FRP (CFRP) plate, carbon FRP (CFRP) fabric, and glass FRP (GFRP) fabric. The influence of a number of conditions commonly encountered in civil infrastructure on strength and other critical properties of the material and bond to substrate concrete was evaluated. In particular, the following exposures, with durations up to 10,000 hours, were considered: (a) 100% humidity, (b) alkalinity, (c) salt water, (d) dry heat, (e) freeze/thaw cycling, (f) vehicle fuel, and (g) UV radiation. Potential deterioration of material and bond properties as a result of these conditions was established by comparing the properties of the unconditioned and conditioned samples. The test specimens consisted of 507 material samples, 168 bond specimens, and 162.44-m long reinforced concrete beams. Reinforced concrete beams strengthened with the three materials were exposed to a combined treatment of freeze/thaw cycling and UV radiation, and tested in flexure.
Environmental Durability Evaluation of Externally Bonded Composites
B. M. Shahrooz (author) / J. R. Pack (author) / T. M. Baseheart (author) / L. A. Rieser (author)
2004
306 pages
Report
No indication
English
Composite Materials , Construction Equipment, Materials, & Supplies , Construction Materials, Components, & Equipment , Civil Engineering , Composites , Durability , Bridges , Environmental effects , Fiber-reinforced polymers , Evaluation , Concrete structures , Strengthening , Strength , Substrate concrete , Retrofitting , Testing , Bonds , Exposure , Externally bonded composites
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