The Behavior of Low Strength Concrete Beams Reinforced with Carbon Fibre Reinforced Polymer Under Cyclic Loading

DOI

10.2991/aer.k.211106.028How to use a DOI?

Keywords

CFRP; Cyclic Loading; Low-strength Concrete; Reinforcement

Abstract

Concrete is a material that is currently widely used in various constructions. However, the development of material and construction technology does not make it perfect. The problem often encountered is that the compressive strength of the concrete used in construction does not meet the initial specifications, even below the minimum requirements. One of the most widely used structural strengthening methods is Carbon Fibre Reinforced Polymer (CFRP). However, CFRP is also widely applied to concrete with lower compressive strength than standard without knowing the risks. This study used an experimental method with various low-strength concrete beams tested under cyclic loading. The specimens are concrete beams with 300 x 200 x 3000 mm with various compressive strengths of 11.44 MPa, 12.88 MPa, and 15.76 MPa. Each variant had normal specimens (without CFRP reinforcement) and specimens reinforced with 1 and 1 layers of CFRP. Based on the test results, it was found that the use of CFRP on low-strength concrete beams resulted in an increase in the flexural strength of the beam by 28-34% compared to normal specimens on 1-layer reinforcement and 26-44% on 2-layers CFRP reinforcement. However, it should be noted that the ductility in the specimens with CFRP reinforcement is significantly reduced. In the failure mode, it can be observed that the failure pattern is ductile in normal specimens, while the failure of specimens with CFRP reinforcement was brittle.

Copyright

© 2021 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article under the CC BY-NC license.

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TY  - CONF
AU  - Adi Setiawan
AU  - Sumargo Sumargo
AU  - Mardiana Oesman
PY  - 2021
DA  - 2021/11/23
TI  - The Behavior of Low Strength Concrete Beams Reinforced with Carbon Fibre Reinforced Polymer Under Cyclic Loading
BT  - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
PB  - Atlantis Press
SP  - 177
EP  - 184
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.211106.028
DO  - 10.2991/aer.k.211106.028
ID  - Setiawan2021
ER  -