Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete

Abstract This research aims to study the effect of supplementary cementitious materials (SCMs) such as quarry dust limestone (QDL) and natural pozzolana (NP) on the performance of fiber reinforced self-consolidating repair mortars (FR-SCRMs). Based on previous optimization of QDL and NP replacement...

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Main Authors: Amar Benyahia, Mohammed Ghrici, Said Choucha, Ahmed Omran
Format: Article
Language:English
Published: Marcílio Alves
Series:Latin American Journal of Solids and Structures
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000601124&lng=en&tlng=en
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author Amar Benyahia
Mohammed Ghrici
Said Choucha
Ahmed Omran
author_facet Amar Benyahia
Mohammed Ghrici
Said Choucha
Ahmed Omran
author_sort Amar Benyahia
collection DOAJ
description Abstract This research aims to study the effect of supplementary cementitious materials (SCMs) such as quarry dust limestone (QDL) and natural pozzolana (NP) on the performance of fiber reinforced self-consolidating repair mortars (FR-SCRMs). Based on previous optimization of QDL and NP replacement ratios, two mortar mixtures incorporating 10% QDL and 20% NP as cement replacements were prepared. The evaluation was based on both fresh (slump flow, flow time) and hardened (compressive and flexural strengths and adherence to old concrete) tests. In addition, the influence of three curing conditions, similar from those normally encountered in the field was evaluated on the compatibility between repair materials and substrate, under flexural strength test by using third-point’s loading beam test method. It is demonstrated that the FR-SCRMs is promising to be used in repair concrete structures class R4 (EN 1504-3) without reducing the adhesive strength.
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spelling doaj.art-b9aea9905716493d89d88c2103db14812022-12-21T19:19:40ZengMarcílio AlvesLatin American Journal of Solids and Structures1679-78251461124114210.1590/1679-78253718S1679-78252017000601124Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged ConcreteAmar BenyahiaMohammed GhriciSaid ChouchaAhmed OmranAbstract This research aims to study the effect of supplementary cementitious materials (SCMs) such as quarry dust limestone (QDL) and natural pozzolana (NP) on the performance of fiber reinforced self-consolidating repair mortars (FR-SCRMs). Based on previous optimization of QDL and NP replacement ratios, two mortar mixtures incorporating 10% QDL and 20% NP as cement replacements were prepared. The evaluation was based on both fresh (slump flow, flow time) and hardened (compressive and flexural strengths and adherence to old concrete) tests. In addition, the influence of three curing conditions, similar from those normally encountered in the field was evaluated on the compatibility between repair materials and substrate, under flexural strength test by using third-point’s loading beam test method. It is demonstrated that the FR-SCRMs is promising to be used in repair concrete structures class R4 (EN 1504-3) without reducing the adhesive strength.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000601124&lng=en&tlng=enQDLNPFiber-reinforced self-consolidating mortar, AdherenceOld concreteCompatibilityThird-point bending.
spellingShingle Amar Benyahia
Mohammed Ghrici
Said Choucha
Ahmed Omran
Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete
Latin American Journal of Solids and Structures
QDL
NP
Fiber-reinforced self-consolidating mortar, Adherence
Old concrete
Compatibility
Third-point bending.
title Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete
title_full Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete
title_fullStr Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete
title_full_unstemmed Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete
title_short Characterization of Fiber Reinforced Self-Consolidating Mortars for Use in Patching Damaged Concrete
title_sort characterization of fiber reinforced self consolidating mortars for use in patching damaged concrete
topic QDL
NP
Fiber-reinforced self-consolidating mortar, Adherence
Old concrete
Compatibility
Third-point bending.
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252017000601124&lng=en&tlng=en
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AT saidchoucha characterizationoffiberreinforcedselfconsolidatingmortarsforuseinpatchingdamagedconcrete
AT ahmedomran characterizationoffiberreinforcedselfconsolidatingmortarsforuseinpatchingdamagedconcrete