Durability of CFRP strands used for prestressing of concrete structural members
Document Type
Article
Publication Date
12-20-2019
Abstract
This paper presents a comprehensive research conducted to study the synergistic effect of environmental conditions and sustained loading on the mechanical properties of Carbon Fiber Reinforced Polymer (CFRP) prestressing strands. The environmental conditions included exposure of CFRP strands to alkaline solution and sustained loading at an elevated temperature of 55 °C for 3000 and 7000 h. The sustained loading was equivalent to 65 percent of the guaranteed tensile strength of the strands. Mechanical testing performed on the strands included tensile, shear and bond strength as well as evaluation of the elastic modulus of the CFRP strands as affected by the environmental conditions and sustained loading. Durability of the constituent materials of the CFRP strands was also studied.
Publication Title
Construction and Building Materials
Volume
228
Digital Object Identifier (DOI)
10.1016/j.conbuildmat.2019.116756
ISSN
09500618
Citation Information
Khalafalla, O., Pour-Ghaz, M., ElSafty, A., Rizkalla, S. (2019) Durability of CFRP Strands Used for Prestressing of Concrete Structural Members. Construction and Building Materials, 228, 116756. Doi: 10.1016/j.conbuildmat.2019.116756