Fiberglass Reinforced Concrete Slabs and Beams

by Edward G. Nawy, (F.ASCE), Prof. of Civ. Engrg.; Rutgers Univ., The State Univ. of New Jersey, New Brunswick, N.J.,
Gary E. Neuwerth, (A.M.ASCE), Principal Engineer; Goodkind and O'Dea, Inc., Clifton, N.J.,

Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 2, Pg. 421-440

Document Type: Journal Paper

Abstract: Twelve square concrete slabs of 5 ft x 5 ft clear span and fully restrained at the four boundaries were tested to failure. They had a uniform average total thickness of 2 in. and measured 7 ft x 7 ft in overall dimensions. The controlling variable parameter was the variation of the grid reinforcement spacing in the two orthogonal directions, from 8 in. to 3 in., the fiberglass reinforcement area varying from 0.074 sq in./ft to 0.196 sq in./ft in each direction and a reinforcement percentage of 0.290% to 0.769%. In addition, 14 simply supported and two double-span continuous beams were also investigated. They were 5 in. wide and 12 in. deep, with a nominal effective depth of 11.25 in. and center line span of 10 ft 0 in. Analytical expressions were developed for evaluation of crack width, deflection, and limit capacity at failure.

Subject Headings: Failure analysis | Concrete slabs | Fiber reinforced polymer | Continuous beams | Fiber reinforced concrete | Concrete beams |

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