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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Performance of One-Way Reinforced Concrete Slabs
with Externally Bonded Fiber-Reinforced
Author(s): Marco Arduini, Antonio Nanni, and Mariano Romagnolo
Publication: Structural Journal
Appears on pages(s): 193-201
Keywords: delamination; fiber-reinforced polymer; negative moment; peeling; reinforced concrete; shear; slab; strength
Abstract:This paper presents experimental research conducted on full-scale one-way reinforced concrete (RC) slabs. The 26 slabs with and without an overhang at one extremity were tested under simply supported conditions. The geometry and loading configuration allowed for the study of positive and negative moment regions. The slabs were strengthened with unidirectional carbon fiber-reinforced polymer (CFRP) laminates installed by manual lay-up. Different failure mechanisms—namely concrete shear, concrete crushing, CFRP rupture, and CFRP peeling—were obtained by varying the CFRP laminate cross-sectional area and amount of internal steel reinforcement. The findings of an analytical model— simulating and interpreting the experimental results—are also given. These findings confirm the notion that peeling (that is, delamination) of the CFRP laminate affects the system performance but can be predicted by monitoring interface shear stresses.
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