Tomography Analysis of Fiber Distribution and Orientation in Ultra High-Performance Fiber-Reinforced Composites With High-Fiber Dosages

Wuest, J.; Denarié, Emmanuel; Brühwiler, Eugen; Tamarit, Lucas; Kocher, Michel; Gallucci, E.

doi:10.1111/j.1747-1567.2008.00420.x

Cited by 31 publications

(14 citation statements)

References 9 publications

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“…Compared to those earlier studies, the slicing method developed in this research is based on the structural parts extracted from the full-size members (floor-slabs) and the use of multiple slices close to each other, which are analysed to improve the statistics, in contrast to the single-picture approach that is found in the literature [15]. In addition, the experimental full-size members are prepared not in controlled laboratory conditions, but following the sitespecific casting.…”

Section: Slicing Methods As a Combination Of Dc-conductivity Testing Wmentioning

confidence: 99%

“…The higher the resolution, the more accurately the shape of a cut fibre can be detected. In addition, the accuracy of photometric analysis can be increased by the polishing of slice surface [15].…”

Section: Summary Of Developed and Implemented Measuring Methodsmentioning

confidence: 99%

“…These methods include photometric analysis [11,12,14,15,38,39], X-ray computed tomography [16,40,41,42] or they are based on different physical phenomena such as electrical conductivity and magnetism [20,21,43,44].…”

Section: Overview Of Measuring Techniquesmentioning

confidence: 99%

“…The studies such as [11,12] were focused on constitutive mappings. In some recent works [13,14,15,16,17,18,16,19] …”

Section: Introductionmentioning

confidence: 99%

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DC-conductivity testing combined with photometry for measuring fibre orientations in SFRC

et al. 2013

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Dissertation for the Doctoral degree to be presented with due permissions of the School of Engineering, Aalto University and Tallinn University of Technology for public examination and debate in Auditorium R1 (Rakentajanaukio 4A) at the Aalto University (Espoo, Finland) on the 4th of April 2014 at 12 noon. Aalto University School of Engineering Tallinn University of TechnologyS up e r v i s i ng p r o f e s s o r P ro f e s s o r J ari P ut t o ne n, A al t o U ni v e rs i t y , F i nl and T h e s i s a d v i s o r D r. re r. nat . H e i k o H e rrmann, T al l i nn U ni v e rs i t y o f T e c h no l o g y , E s t o ni aP r e l i mi na r y e x a mi ne r s P ro f e s s o r H o l m A l t e nb ac h , F ac ul t y o f M e c h ani c al E ng i ne e ri ng , O t t ov o n G ue ri c k e -U ni v e rs i t ät M ag d e b urg , G e rmany P ro f e s s o r K e nne t h R une s s o n, D e p art me nt o f A p p l i e d M e c h ani c s , C h al me rs U ni v e rs i t y o f T e c h no l o g y , S w e d e n O p p o ne nt P ro f e s s o r K ari n L und g re n, D e p art me nt o f C i v i l and E nv i ro nme nt al E ng i ne e ri ng , C h al me rs U ni v e rs i t y o f T e c h no l o g y , S w e d e n A al t o U ni v e rs i t y p ub l i c at i o n s e ri e s D O C T O R A L D I S S E R T A T I O N S 2 8/ 2 0 1 4© M ari k a E i k I S BN 9 7 8-9 5 2 -6 0 -5 5 9 1 -6 I S BN 9 7 8-9 5 2 -6 0 -5 5 9 2 -3 ( p d f ) I S S N -L 1 7 9 9 -4 9 34 I S S N 1 7 9 9 -4 9 34 ( p ri nt e d ) I S S N 1 7 9 9 -4 9 4 2 ( p d f ) h t t p : / / urn. f i / U R N : I S BN : 9 7 8-9 5 2 -6 0 -5 5 9 2 -3 U ni g raf i a O y H e l s i nk i 2 0 1 4 F i nl and S up e r v i s i ng p r o f e s s o r P ro f e s s o r J ari P ut t o ne n, A al t o U ni v e rs i t y , F i nl andT h e s i s a d v i s o r D r. re r. nat . H e i k o H e rrmann, T al l i nn U ni v e rs i t y o f T e c h no l o g y , E s t o ni a P r e l i mi na r y e x a mi ne r s P ro f e s s o r H o l m A l t e nb ac h , F ac ul t y o f M e c h ani c al E ng i ne e ri ng , O t t ov o n G ue ri c k e -U ni v e rs i t ät M ag d e b urg , G e rmany P ro f e s s o r K e nne t h R une s s o n, D e p art me nt o f A p p l i e d M e c h ani c s , C h al me rs U ni v e rs i t y o f T e c h no l o g y , S w e d e n O p p o ne nt P ro f e s s o r K ari n L und g re n, D e p art me nt o f C i v i l and E nv i ro nme nt al E ng i ne e ri ng , C h al me rs U ni v e rs i t y o f T e c h no l o g y , S w e d e n A al t o U ni v e rs i t y p ub l i c at i o n s e ri e s D O C T O R A L D I S S E R T A T I O N S 2 8/ 2 0 1 4 © M ari k a E i k I S BN 9 7 8-9 5 2 -6 0 -5 5 9 1 -6 I S BN 9 7 8-9 5 2 -6 0 -5 5 9 2 -3 ( p d f ) I S S N -L 1 7 9 9 -4 9 34 I S S N 1 7 9 9 -4 9 34 ( p ri nt e d ) I S S N 1 7 9 9 -4 9 4 2 ( p d f ) h t t p : / / urn. f i / U R N : I S BN : 9 7 8-9 5 2 -6 0 -5 5 9 2 -3 U ni g raf i a O y H e l s i nk i 2 0 1 4 F i nl and S up e r v i s i ng p r o f e s s o r P ro f e s s o r J ari P ut t o ne n, A al t o U ni v e rs i t y , F i nl and © M ari k a E i k I S BN 9 7 8-9 5 2 -6 0 -5 5 9 1 -6 I S BN 9 7 8-...

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Section: Slicing Methods As a Combination Of Dc-conductivity Testing Wmentioning

confidence: 99%

Section: Summary Of Developed and Implemented Measuring Methodsmentioning

confidence: 99%

Section: Overview Of Measuring Techniquesmentioning

confidence: 99%

“…The studies such as [11,12] were focused on constitutive mappings. In some recent works [13,14,15,16,17,18,16,19] …”

Section: Introductionmentioning

confidence: 99%

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DC-conductivity testing combined with photometry for measuring fibre orientations in SFRC

et al. 2013

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“…-Inspired from Wuest et al (2009) andFerrara et al (2011), in order to study the fiber orientation effect, two square plates of 580 x 580 x 30 mm were cast with the material poured from one end to the other, without joints. Figure 2a illustrates the casting procedure.…”

Section: Experimental Programmentioning

confidence: 99%

Effect of Fiber Orientation and Specimen Thickness on the Tensile Response of Strain Hardening UHPFRC Mixes with Reduced Embodied Energy

Hajiesmaeili

Denarié

2017

Strain-Hardening Cement-Based Composites

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Ultra-High Performance Fiber Reinforced Concretes (UHPFRC) have demonstrated their potential to contain the explosion of maintenance costs (Economy and Environment) for civil engineering structures, due to their extremely low permeability associated with the outstanding mechanical properties. Substitution of EmbodiedEnergy (EE)-costly components of UHPFRC such as clinker and steel fibers, is the next step towards sustainability, to make it even more efficient and more environmentfriendly. In this study, a strain hardening UHPFRC mix with two main modifications has been developed in which (1) 75% of steel fibers have been replaced by ultra-high molecular weight polyethylene (UHMWPE, henceforth referred to as PE) fibers and (2) 50% volume of cement type CEM I have been replaced with limestone filler. The effect of the fiber orientation and the specimen thickness on the mechanical properties of such mixes have been investigated. The mechanical properties have been investigated using direct tensile test, and 4-point bending test. Finally, the dramatic effect of fiber orientation on the ultimate strength and deformability has been demonstrated. Moreover, the results confirm that the specimen thickness affects the deformation capacity of the specimens. Finally, improvements in terms of reduction of EE of the proposed mixes, are highlighted.Keywords: UHPFRC, Mechanical response, Strain Hardening, UHMW-PE fibers, Embodied Energy INTRODUCTIONCurrent UHPFRC, for structural applications in new constructions and rehabilitation of existing structures, are almost exclusively based on steel fibers. A few notable investigations have been conducted on using UHPFRC with synthetic fibers for structural applications. The synthetic fibers are mostly used in UHPFRC for facade elements with complex shapes (Chen and Chanvillard, 2012). Considering the fact that more than 50% of the EE and GWP impact of the UHPFRC is from the steel fibers contribution (Stengel and Schießl, 2008), replacing the steel fibers with synthetic fibers has a considerable effect on reducing the EE of this material.

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Modelling and Experimental Characterization of the Tensile Response of Ultra-High Performance Fibre-Reinforced Cementitious Composites

Abrishambaf

Pimentel

2017

Strain-Hardening Cement-Based Composites

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Tomography Analysis of Fiber Distribution and Orientation in Ultra High-Performance Fiber-Reinforced Composites With High-Fiber Dosages

Cited by 31 publications

References 9 publications

DC-conductivity testing combined with photometry for measuring fibre orientations in SFRC

DC-conductivity testing combined with photometry for measuring fibre orientations in SFRC

Effect of Fiber Orientation and Specimen Thickness on the Tensile Response of Strain Hardening UHPFRC Mixes with Reduced Embodied Energy

Modelling and Experimental Characterization of the Tensile Response of Ultra-High Performance Fibre-Reinforced Cementitious Composites

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