A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Chloride Ion Penetration into Cracked UHPFRC During Wetting-drying Cycles
https://orcid.org/https://orcid.org/0000-0002-1646-4665
https://orcid.org/https://orcid.org/0000-0002-4876-2587
https://orcid.org/https://orcid.org/0000-0002-7945-7171
https://orcid.org/https://orcid.org/0000-0001-5671-8888
https://orcid.org/https://orcid.org/0000-0003-3954-5721
The subject of this paper is the extent to which, during wetting–drying cycles, chloride ions can penetrate Ultra-high-Performance Fibre Reinforced Cementitious Composites (UHPFRC) specimens subjected to combined mechanical and environmental load. Pre-cracking was obtained by subjecting prismatic specimens (40 × 40 × 60mm3) to four-point bending until a predefined crack opening displacement (COD) is reached, using a dedicated test setup. Three target CODs were studied: 300, 350 and 400 µm. Exposure to a concentrated chloride solution (3.5% NaCl) was used as an environmental load. Specimens we subjected to wetting–drying cycles for one year. After this exposure period, the chloride penetration was characterised both qualitatively (by colourimetric analysis with silver nitrate) and quantitatively (by determining the chloride profile). The effect of damage level on chloride penetration and its impact on structures durability is discussed in the current paper.
Chloride Ion Penetration into Cracked UHPFRC During Wetting-drying Cycles
https://orcid.org/https://orcid.org/0000-0002-1646-4665
https://orcid.org/https://orcid.org/0000-0002-4876-2587
https://orcid.org/https://orcid.org/0000-0002-7945-7171
https://orcid.org/https://orcid.org/0000-0001-5671-8888
https://orcid.org/https://orcid.org/0000-0003-3954-5721
The subject of this paper is the extent to which, during wetting–drying cycles, chloride ions can penetrate Ultra-high-Performance Fibre Reinforced Cementitious Composites (UHPFRC) specimens subjected to combined mechanical and environmental load. Pre-cracking was obtained by subjecting prismatic specimens (40 × 40 × 60mm3) to four-point bending until a predefined crack opening displacement (COD) is reached, using a dedicated test setup. Three target CODs were studied: 300, 350 and 400 µm. Exposure to a concentrated chloride solution (3.5% NaCl) was used as an environmental load. Specimens we subjected to wetting–drying cycles for one year. After this exposure period, the chloride penetration was characterised both qualitatively (by colourimetric analysis with silver nitrate) and quantitatively (by determining the chloride profile). The effect of damage level on chloride penetration and its impact on structures durability is discussed in the current paper.
Chloride Ion Penetration into Cracked UHPFRC During Wetting-drying Cycles
https://orcid.org/https://orcid.org/0000-0002-1646-4665
https://orcid.org/https://orcid.org/0000-0002-4876-2587
https://orcid.org/https://orcid.org/0000-0002-7945-7171
https://orcid.org/https://orcid.org/0000-0001-5671-8888
https://orcid.org/https://orcid.org/0000-0003-3954-5721
The subject of this paper is the extent to which, during wetting–drying cycles, chloride ions can penetrate Ultra-high-Performance Fibre Reinforced Cementitious Composites (UHPFRC) specimens subjected to combined mechanical and environmental load. Pre-cracking was obtained by subjecting prismatic specimens (40 × 40 × 60mm3) to four-point bending until a predefined crack opening displacement (COD) is reached, using a dedicated test setup. Three target CODs were studied: 300, 350 and 400 µm. Exposure to a concentrated chloride solution (3.5% NaCl) was used as an environmental load. Specimens we subjected to wetting–drying cycles for one year. After this exposure period, the chloride penetration was characterised both qualitatively (by colourimetric analysis with silver nitrate) and quantitatively (by determining the chloride profile). The effect of damage level on chloride penetration and its impact on structures durability is discussed in the current paper.
Chloride Ion Penetration into Cracked UHPFRC During Wetting-drying Cycles
RILEM Bookseries
Valente, Isabel B. (editor) / Ventura Gouveia, António (editor) / Dias, Salvador S. (editor) / Matos, Ana Mafalda (author) / Nunes, Sandra (author) / Figueiredo, Stefan Chaves (author) / Schlangen, Erik (author) / Aguiar, José L. Barroso (author)
RILEM Spring Convention and Conference ; 2020 ; Guimarães, Portugal
Proceedings of the 3rd RILEM Spring Convention and Conference (RSCC 2020) ; Chapter: 21 ; 227-238
RILEM Bookseries ; 33
2021-07-06
12 pages
Article/Chapter (Book)
Electronic Resource
English
Model of chloride penetration into cracked concrete subject to drying–wetting cycles
| Online Contents | 2012
Chloride ion penetration into fly ash modified concrete during wetting-drying cycles
| Online Contents | 2015