Title :

Mechanical behavior of a cementitious composite incorporating flax fibers treated with citric acid

Author(s) :

Freitas-Dutra, Lorena [Auteur]
Laboratoire des technologies innovantes - UR UPJV 3899 [LTI]
Chafei, Sawsen [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Tran Le, Anh Dung [Auteur]
Laboratoire des technologies innovantes - UR UPJV 3899 [LTI]
Langlet, Thierry [Auteur]
Laboratoire des technologies innovantes - UR UPJV 3899 [LTI]

Conference title :

75th RILEM Annual Week

City :

Merida

Country :

Mexique

Start date of the conference :

2021-08-29

English keyword(s) :

Cementitious composite
flax fibers
bio-based materials
mechanical performance

HAL domain(s) :

Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Mécanique des matériaux [physics.class-ph]
Sciences de l'ingénieur [physics]/Génie civil/Matériaux composites et construction

English abstract : [en]

The building and construction sector is one of the sectors most concerned by the challenges of sustainable development. Indeed, building (construction) represents about 40% of CO2 emissions in developed countries, 37% of ...
Show more >The building and construction sector is one of the sectors most concerned by the challenges of sustainable development. Indeed, building (construction) represents about 40% of CO2 emissions in developed countries, 37% of energy consumption and 40% of waste produced. In this perspective, the development of building materials and devices that emit less CO2, consume less non-renewable resources and are as widely recyclable as possible has been the subject of numerous studies. This work relates to the treatment of flax fibers with citric acid in order to improve the behavior of a cementitious mortar. The effect of the treatment on the kinetics and the water absorption rate of the fibers was first evaluated, then its influence on the properties of the fibrous mortar was studied. The treatment reduced the setting time of the cementitious mixtures and significantly increased the flexural strength compared to the raw fiber composites. SEM and wettability test confirmed the treatment efficiency to reduce the hydrophilic nature of the treated fibers.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515

Source :

Harvested from HAL

Submission date :

2025-02-26T11:04:49Z