<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper presents an experimental investigation on the post-repair flexural response of mortars with and without damage. In order to improve the mechanical properties of the damaged mortars, which were subjected to different loads ranging between 40 % and 90 %, the mortars specimens were reinforced and repaired using two different composite materials, the first with only epoxy resin, while the second consisted of a mixture of epoxy resin and glass fiber. The results show a significant improvement in the stiffness damaged. Therefore, the reinforced specimens by a layer of resin on the lower side surface increased the bending strength by 58 %, when compared to those control samples. The reinforcement using composite resin-fiber of glass exhibited considerable increases in the safety of constructions. The SEM images of damaged samples with and without repair, revealed the impact of reinforced glass fibers-mortar on the matrix-mortar by improving theirs mechanical performances.</p></abstract>

This paper presents an experimental investigation on the post-repair flexural response of mortars with and without damage. In order to improve the mechanical properties of the damaged mortars, which were subjected to different loads ranging between 40 % and 90 %, the mortars specimens were reinforced and repaired using two different composite materials, the first with only epoxy resin, while the second consisted of a mixture of epoxy resin and glass fiber. The results show a significant improvement in the stiffness damaged. Therefore, the reinforced specimens by a layer of resin on the lower side surface increased the bending strength by 58 %, when compared to those control samples. The reinforcement using composite resin-fiber of glass exhibited considerable increases in the safety of constructions. The SEM images of damaged samples with and without repair, revealed the impact of reinforced glass fibers-mortar on the matrix-mortar by improving theirs mechanical performances.

An experimental study on damaged cementitious mortars repaired by glass/epoxy composite materials

Research Unit; Materials Process and Environment, Faculty of Technology

M’hamed Bougara University of Boumerdes

Selected Scientific Papers - Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

This paper presents an experimental investigation on the post-repair flexural response of mortars with and without damage. In order to improve the mechanical...

An experimental study on damaged cementitious mortars repaired by glass/epoxy composite materials

Published Online: Nov 24, 2020

Page range: 113 - 128

DOI: https://doi.org/10.1515/sspjce-2020-0011

Keywords
Cement mortar, Glass Fiber, damaged cementitious materials, Composite materials, Epoxy Resin, Mechanical Properties, SEM

© 2020 Chouaib Aribi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

An experimental study on damaged cementitious mortars repaired by glass/epoxy composite materials

Published Online: Nov 24, 2020

Page range: 113 - 128

DOI: https://doi.org/10.1515/sspjce-2020-0011

KeywordsCement mortar, Glass Fiber, damaged cementitious materials, Composite materials, Epoxy Resin, Mechanical Properties, SEM

© 2020 Chouaib Aribi et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Cement mortar, Glass Fiber, damaged cementitious materials, Composite materials, Epoxy Resin, Mechanical Properties, SEM