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Fibre reinforced geopolymer versus conventional reinforced concrete layers for the structural strengthening of RC beams

Fibre reinforced geopolymer versus conventional reinforced concrete layers for the structural strengthening of RC beams
Fibre reinforced geopolymer versus conventional reinforced concrete layers for the structural strengthening of RC beams

A common technique used to increase the flexural capacity of RC beams is the external application of RC layers. In this case, crucial parameter for the efficiency of the examined technique is the connection between the new layer and the existing concrete, since lack of sufficient connection at the interface may lead to premature failure of the strengthened elements. Another crucial parameter for the durability of the strengthened elements is the corrosion of the reinforcement of the layers. In the current study, fibre reinforced geopolymer concrete layers reinforced with steel bars were used for the flexural strengthening of reinforced concrete beams. Accelerated corrosion tests were conducted followed by flexural loading. The results indicate that, the addition of fibre reinforced geopolymer concrete offers improved load performance and durability, since higher maximum load increment was observed and the effect of corrosion was found to be negligible.

Corrosion, Fibre reinforced geopolymer concrete, Layers, Strengthening
S26-65-S26-72
International Association for Bridge and Structural Engineering (IABSE)
Al-Majidi, Mohammed Haloob
2bf1e66a-804e-4a56-86cf-a9616f61f960
Lampropoulos, Andreas
cb4d2db2-76cb-4bef-be28-2fa4d0902de2
Cundy, Andrew
994fdc96-2dce-40f4-b74b-dc638286eb08
Tsioulou, Ourania
57269f96-1ff3-41ba-8cd2-15887da26422
Alrekabi, Salam
a4b86e70-12ec-4bd7-a5df-73691b68f449
Al-Majidi, Mohammed Haloob
2bf1e66a-804e-4a56-86cf-a9616f61f960
Lampropoulos, Andreas
cb4d2db2-76cb-4bef-be28-2fa4d0902de2
Cundy, Andrew
994fdc96-2dce-40f4-b74b-dc638286eb08
Tsioulou, Ourania
57269f96-1ff3-41ba-8cd2-15887da26422
Alrekabi, Salam
a4b86e70-12ec-4bd7-a5df-73691b68f449

Al-Majidi, Mohammed Haloob, Lampropoulos, Andreas, Cundy, Andrew, Tsioulou, Ourania and Alrekabi, Salam (2019) Fibre reinforced geopolymer versus conventional reinforced concrete layers for the structural strengthening of RC beams. In IABSE Symposium, Nantes 2018: Tomorrow's Megastructures. International Association for Bridge and Structural Engineering (IABSE). S26-65-S26-72 .

Record type: Conference or Workshop Item (Paper)

Abstract

A common technique used to increase the flexural capacity of RC beams is the external application of RC layers. In this case, crucial parameter for the efficiency of the examined technique is the connection between the new layer and the existing concrete, since lack of sufficient connection at the interface may lead to premature failure of the strengthened elements. Another crucial parameter for the durability of the strengthened elements is the corrosion of the reinforcement of the layers. In the current study, fibre reinforced geopolymer concrete layers reinforced with steel bars were used for the flexural strengthening of reinforced concrete beams. Accelerated corrosion tests were conducted followed by flexural loading. The results indicate that, the addition of fibre reinforced geopolymer concrete offers improved load performance and durability, since higher maximum load increment was observed and the effect of corrosion was found to be negligible.

Full text not available from this repository.

More information

Published date: 2019
Venue - Dates: 40th IABSE Symposium in Nantes 2018: Tomorrow's Megastructures, Nantes, France, 2018-09-19 - 2018-09-21
Keywords: Corrosion, Fibre reinforced geopolymer concrete, Layers, Strengthening

Identifiers

Local EPrints ID: 427478
URI: https://eprints.soton.ac.uk/id/eprint/427478
PURE UUID: 688b73ee-e0b5-4a64-9fa3-4cc584391790
ORCID for Andrew Cundy: ORCID iD orcid.org/0000-0003-4368-2569

Catalogue record

Date deposited: 18 Jan 2019 17:30
Last modified: 20 Jul 2019 00:34

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