Open AccessPerformance of Thermally Insulated Reinforced Concrete Beams Strengthened with Near-Surface Mounted-Carbon Fiber Reinforced Polymer Strips under Elevated Temperature
Author(s) -
Ikram Ameen Saeed,
Tareq S. Al-Attar,
Basil S. Al-Shathr,
Riadh Al-Mahaidi
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/881/1/012038
Subject(s) - materials science , composite material , strips , carbon fiber reinforced polymer , reinforced concrete , polymer , fibre reinforced plastic , beam (structure) , adhesive , cement , fiber , structural engineering , layer (electronics) , engineering
This paper investigated the performance of reinforced concrete beams strengthened with near-surface mounted (NSM) carbon fiber reinforced polymer (CFRP) smooth and rough strips using cement based adhesive and insulated with plasterboards for protection the beams subjected to high temperature. An experimental work was carried out on ten large scale RC strengthened beams and strengthened insulated beams. The experimental program subject the strengthened beams to high temperature degrees up to 600 °C in electric furnace and observe changes after beams been heated. Results showed that the plasterboards provided excellent protection and decreased the CFRP temperature of about 42-24%. The insulated beams behaved as good as that of strengthened beams prior to expose to 600°C.