Durability Assessment of GFRP Rebars Exposed to High pH-Seawater

Alvaro Ruiz Emparanza, Carlos N. Morales, Juan Manuel Palacios, Francisco De Caso, Antonio Nanni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There is a continued process to implement innovative materials to enhance the sustainability and durability of the built infrastructure. Technologies developed over the last two decades have facilitated the use of glass fiber reinforced polymer (GFRP) composites as internal reinforcement bars (rebars) for concrete structures, which have proven to be an alternative to traditional steel reinforcement due to significant advantages, such as magnetic transparency and, most importantly, corrosion resistance, equating to durability and structural life extension. This study evaluates the durability of three different available and most commonly used GFRP rebar types, based on exposure to aggressive environments, such as those experienced in coastal areas. For that, the specimens were expose to high pH seawater solution (that simulates the alkalinity of the concrete exposed to seawater), at 60 °C for different periods of time: 45, 90, and 180 days. The durability of these GFRP rebars was assessed by testing four different physio-mechanical properties, including: tensile strength, elastic modulus, and transverse and horizontal shear strength. Preliminary results show that the resilience of the GFRP rebars after being exposed to high pH seawater at high temperature, varies considerably among the three different types. The tensile strength was the most affected physio-mechanical property.

Original languageEnglish (US)
Title of host publicationCurrent Topics and Trends on Durability of Building Materials and Components - Proceedings of the 15th International Conference on Durability of Building Materials and Components, DBMC 2020
EditorsCarles Serrat, Joan Ramon Casas, Vicente Gibert i Armengol
PublisherInternational Center for Numerical Methods in Engineering
Pages1329-1336
Number of pages8
ISBN (Electronic)9788412110180
DOIs
StatePublished - 2020
Externally publishedYes
Event15th International Conference on Durability of Building Materials and Components, DBMC 2020 - Virtual, Online, Spain
Duration: Oct 20 2020Oct 23 2020

Publication series

NameCurrent Topics and Trends on Durability of Building Materials and Components - Proceedings of the 15th International Conference on Durability of Building Materials and Components, DBMC 2020

Conference

Conference15th International Conference on Durability of Building Materials and Components, DBMC 2020
Country/TerritorySpain
CityVirtual, Online
Period10/20/2010/23/20

Keywords

  • Composites
  • Durability
  • GFRP rebars
  • Resilience

ASJC Scopus subject areas

  • Materials Science(all)
  • Civil and Structural Engineering
  • Building and Construction

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