A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mechanical behavior of textile reinforced concrete with newly developed mineral-impregnated carbon fabrics submitted to elevated temperatures
https://orcid.org/0000-0003-1927-4995
https://orcid.org/0000-0001-5709-6486
https://orcid.org/0000-0002-5541-2286
https://orcid.org/0000-0002-4685-7064
https://orcid.org/0000-0002-0160-7619
Abstract Mineral impregnations can be used to improve the bond of multifilament carbon yarns towards cementitious matrices, even at elevated temperatures. In this work, the effectiveness of Mineral-Impregnated Carbon Fibers (MCF) fabrics with a cement-based (C) and a geopolymer (GP) suspension was evaluated through direct tensile tests. The tensile mechanical behavior at room temperature and after exposure to elevated temperatures of TRCs with the C- and GP-MCF fabrics was investigated and compared to the response of a TRC with a commercially epoxy-coated (EP) carbon fabric. A DIC analysis was performed to evaluate the composites’ cracking pattern. The results showed that the TRC with MCF fabrics presented a strain-hardening behavior with a multiple-cracking pattern. While the mechanical response of the TRC with GP-MCF and EP carbon fabric was affected by the enhancement of temperature, the heating up to 300 °C did not significantly affect the mechanical performance of the TRC with C-MCF fabric.
Mechanical behavior of textile reinforced concrete with newly developed mineral-impregnated carbon fabrics submitted to elevated temperatures
https://orcid.org/0000-0003-1927-4995
https://orcid.org/0000-0001-5709-6486
https://orcid.org/0000-0002-5541-2286
https://orcid.org/0000-0002-4685-7064
https://orcid.org/0000-0002-0160-7619
Abstract Mineral impregnations can be used to improve the bond of multifilament carbon yarns towards cementitious matrices, even at elevated temperatures. In this work, the effectiveness of Mineral-Impregnated Carbon Fibers (MCF) fabrics with a cement-based (C) and a geopolymer (GP) suspension was evaluated through direct tensile tests. The tensile mechanical behavior at room temperature and after exposure to elevated temperatures of TRCs with the C- and GP-MCF fabrics was investigated and compared to the response of a TRC with a commercially epoxy-coated (EP) carbon fabric. A DIC analysis was performed to evaluate the composites’ cracking pattern. The results showed that the TRC with MCF fabrics presented a strain-hardening behavior with a multiple-cracking pattern. While the mechanical response of the TRC with GP-MCF and EP carbon fabric was affected by the enhancement of temperature, the heating up to 300 °C did not significantly affect the mechanical performance of the TRC with C-MCF fabric.
Mechanical behavior of textile reinforced concrete with newly developed mineral-impregnated carbon fabrics submitted to elevated temperatures
https://orcid.org/0000-0003-1927-4995
https://orcid.org/0000-0001-5709-6486
https://orcid.org/0000-0002-5541-2286
https://orcid.org/0000-0002-4685-7064
https://orcid.org/0000-0002-0160-7619
Abstract Mineral impregnations can be used to improve the bond of multifilament carbon yarns towards cementitious matrices, even at elevated temperatures. In this work, the effectiveness of Mineral-Impregnated Carbon Fibers (MCF) fabrics with a cement-based (C) and a geopolymer (GP) suspension was evaluated through direct tensile tests. The tensile mechanical behavior at room temperature and after exposure to elevated temperatures of TRCs with the C- and GP-MCF fabrics was investigated and compared to the response of a TRC with a commercially epoxy-coated (EP) carbon fabric. A DIC analysis was performed to evaluate the composites’ cracking pattern. The results showed that the TRC with MCF fabrics presented a strain-hardening behavior with a multiple-cracking pattern. While the mechanical response of the TRC with GP-MCF and EP carbon fabric was affected by the enhancement of temperature, the heating up to 300 °C did not significantly affect the mechanical performance of the TRC with C-MCF fabric.
Mechanical behavior of textile reinforced concrete with newly developed mineral-impregnated carbon fabrics submitted to elevated temperatures
Silva, Rebecca Mansur de Castro (author) / Zhao, Jitong (author) / Souza, Letícia Oliveira de (author) / Liebscher, Marco (author) / Curosu, Iurie (author) / Mechtcherine, Viktor (author) / Silva, Flávio de Andrade (author)
2024-02-01
Article (Journal)
Electronic Resource
English
Effects of elevated temperatures on the interface properties of carbon textile-reinforced concrete
| Online Contents | 2014
Behavior of Reinforced Concrete at Elevated Temperatures
| NTIS | 1984