Strength of Hollow Concrete Masonry Reinforced with Sprayed Glass-Fiber-Reinforced Polymer

Author(s)

Parsekian, Guilherme A. ^[1] ; Fonseca, Fernando S. ^[2] ; Shrive, Nigel G. ^[3]

Affiliation

^[1] Univ Fed Sao Carlos, Dept Civil Engn, BR-13565905 Sao Carlos, SP - Brazil

^[2] Brigham Young Univ, Dept Civil & Environm Engn, Provo, UT 84602 - USA

^[3] Univ Calgary, Dept Civil Engn, Schulich Sch Engn, Calgary, AB T2N 1N4 - Canada

• Document type: Journal article
• Source: JOURNAL OF COMPOSITES FOR CONSTRUCTION; v. 18, n. 6 DEC 2014.
• Web of Science Citations: 0

Abstract

The results of out-of-plane strength tests on unreinforced and reinforced concrete masonry wallettes that were constructed using 190x190x390-mm hollow concrete masonry units are reported in this paper. The reinforcement was external and was accomplished by spraying one side of the wallettes with layers of glass-fiber-reinforced polymer (GFRP). Eight unreinforced and 28 reinforced wallettes were constructed and tested in four-point bending spanning either vertically or horizontally. Twelve additional reinforced wallettes were constructed but tested cantilevered from either the bottom or one of the sides and loaded either along the top or along the nonsupported side. Overall, the results indicate that the strength of unreinforced masonry can be greatly improved by external reinforcement. The behavior of the wallettes is also discussed, with the most worrisome observed behavior being the failure of the webs of the masonry units in the direction parallel to the direction of the applied loads. As part of the research, simplified models to predict the capacity of hollow concrete masonry externally reinforced with sprayed GFRP were also developed and presented in this paper. (AU)

• FAPESP's process: 06/00917-8 - Glass fiber reinforced ceramic or concrete block: numerical and experimental evaluation
• Grantee: Guilherme Aris Parsekian
• Support Opportunities: Scholarships abroad - Research