Dowels effectiveness investigation between ultra high performance fiber reinforced concrete and reinforced concrete

Paschalis, Spyridon and Lampropoulos, Andreas P. (2022) Dowels effectiveness investigation between ultra high performance fiber reinforced concrete and reinforced concrete. Acta Polytechnica CTU Proceedings, 33. pp. 452-456. ISSN 2336-5382

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Abstract

In the present study, the performance of Reinforced Concrete (RC) beams which were strengthened with Ultra High Performance Fiber Reinforced Concrete (UHPFRC) and dowels at the interface was investigated. RC beams with a length of 2.2 m strengthened with UHPFRC layers at the tensile side. Before the application of the layers, the interface between RC and UHPFRC was roughened. During the testing, the interface slips between UHPFRC and RC were recorded using Linear Variable Differential Transformers (LVDTs). The beams were tested under four-point flexural test. The results of the present study indicated that the dowels at the interface reduce the slips at the interface, delay the formation of cracks and result in higher load carrying capacity.

Item Type: Article
Identifier: 10.14311/app.2022.33.0452
Keywords: dowels, interface characteristics, reinforced concrete beams, steel connectors , strengthening, UHPFRC
Subjects: Construction and engineering
Related URLs:
Depositing User: Spyridon Paschalis
Date Deposited: 29 Jul 2022 15:24
Last Modified: 29 Jul 2022 15:25
URI: https://repository.uwl.ac.uk/id/eprint/9277

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