Influence of Cellulose Filaments on Cement Paste and Concrete

Hisseine, Ousmane A.; Omran, Ahmed; Tagnit-Hamou, Arezki

doi:10.1061/(asce)mt.1943-5533.0002287

Cited by 87 publications

(70 citation statements)

References 42 publications

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“…The CNFs retain water and dispatch it to the matrix to partially replenish the emptying cement pores. This has been proved by different studies to be the mechanism that reduces self-desiccation and attenuates early-age deformations [77,78,98]. This is key for composites with a low water/cement ratio, such as the ultra-high-performance concretes.…”

Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

“…Physical bonding occurs during the hydration of cement when crystals interlock with each other and the fiber surfaces and grow into any other openings and permeable parts of the fiber. Several studies have proved that the hydrophilic and hygroscopic features of CNF can provide a sort of internal water reservoir in the nanofibril network (Figure 2), with a higher concentration of Ca 2+ ions electrostatically attracted by the anionic nanofibril surface [76,77,78,79,100]. Furthermore, the diffusion of water molecules in the nanofibril network is easier and faster than that in the matrix [84].…”

Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

“…Since internal curing is an effective means to reduce the autogenous shrinkage of high-performance concrete [103], cellulosic fibers are efficient internal curing aids to prevent autogenous shrinkage in concrete [12]. Some researchers have proved that CNFs perform even better [76,77,78,79,100].…”

Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

“…Mohamed et al [83] studied the effect of CMF on the workability of self-compacting concrete, and proved that the percentage, by mass, of superplasticizer required to obtain a slump of 70 cm and a V-funnel of 10 s was 0.85% of binder for a self-compacting cement with 41% (in volume over volume of cement) CMF, while it was 1.35% in the absence of CMF. However, most studies have shown that the addition of CNF reduces the cement’s workability [72,78,79]. Hisseine et al [78] proved that the use, in self-compacting concrete, of 0.1 wt.% of CMF was enough to reduce the slump-flow diameter from 785 mm to 538 mm and that a dose of 0.15 wt.% reduced it to 320 mm.…”

Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

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Nanocelluloses: Natural-Based Materials for Fiber-Reinforced Cement Composites. A Critical Review

et al. 2019

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Nanocelluloses (NCs) are bio-based nano-structurated products that open up new solutions for natural material sciences. Although a high number of papers have described their production, properties, and potential applications in multiple industrial sectors, no review to date has focused on their possible use in cementitious composites, which is the aim of this review. It describes how they could be applied in the manufacturing process as a raw material or an additive. NCs improve mechanical properties (internal bonding strength, modulus of elasticity (MOE), and modulus of rupture (MOR)), alter the rheology of the cement paste, and affect the physical properties of cements/cementitious composites. Additionally, the interactions between NCs and the other components of the fiber cement matrix are analyzed. The final result depends on many factors, such as the NC type, the dosage addition mode, the dispersion, the matrix type, and the curing process. However, all of these factors have not been studied in full so far. This review has also identified a number of unexplored areas of great potential for future research in relation to NC applications for fiber-reinforced cement composites, which will include their use as a surface treatment agent, an anionic flocculant, or an additive for wastewater treatment. Although NCs remain expensive, the market perspective is very promising.

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Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

Section: Nanocelluloses In the Cement And Fiber-cement Industrymentioning

confidence: 99%

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Nanocelluloses: Natural-Based Materials for Fiber-Reinforced Cement Composites. A Critical Review

et al. 2019

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“…Different fibers can be used to eliminate the brittleness of concrete and improve the mechanical properties. Currently, different types of fibers such as carbon, asbestos, cellulose, steel, polypropylene and glass are used to reinforce concrete and cement [3][4][5][6][7][8]. However, each of them has some advantages and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of Energy Absorption Capacity of Glass Reinforced SCC Beams

Mohsenzadeh

Maleki

Yaghin

2019

IJE

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A B S T R A C TVarious experimental studies have been carried out on glass fiber reinforced concrete (GFRC), but in limited studies, the behavior of this type of concrete is evaluated using finite element method (FEM). In this study an analysis model is presented for predicting energy absorption capacity of glass fiber reinforced self-compacting concrete (GFRCSCC) beams and the results are compared with experimental study. For this purpose, the investigations are conducted in two experimental and numerical sections. In experimental section, the characteristics of fresh and hardened concrete have been evaluated using slump flow, V-funnel, L-box, T50, compressive strength, tensile strength and flexural strength tests. In numerical section, ABAQUS software has been used to simulate GFRCSCC beams. The concrete damage plasticity model has been used to simulated concrete material. The fiber contents are 0, 0.25, 0.75 and 1% of the mixed concrete by volume. The results show that the maximum increase in energy absorption capacity of beams compared to the plain concrete for 25, 35 and 45 concrete grade was 29, 33.2 and 53.75%, respectively. At last, the ultimate loads corresponding to the FEM are found to hold good agreement with experimental ultimate loads which validates the FEM.

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