Influence of adding short carbon fibers on the flexural behavior of textile-reinforced concrete one-way slab

Ibrahim, Amer M.; Suhad, M.; Hussein, Omar H.; Tayeh, Bassam A.; Najm, ‎Hadee Mohammed; Qaidi‏, Shaker

doi:10.1016/j.cscm.2022.e01601

Cited by 10 publications

(5 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the results contradict the observations of the uniaxial tensile test of TRM (Yang et al, 2019). The reason can be credited to the dissimilar stress states of tension and bending (Dong et al, 2021;Qaidi et al, 2022d;Qaidi et al, 2022e;Ibrahim et al, 2022). On the other hand, Δ y of the three slab specimens was almost at the same level (between 15.2 and 19.63 mm) which confirms, that the yield point is primarily governed by the longitudinal steel reinforcement.…”

Section: Cracking Pattern and Mode Of Failurecontrasting

confidence: 59%

Flexural behaviour of RC one-way slabs reinforced using PAN based carbon textile grid

et al. 2023

Self Cite

View full text Add to dashboard Cite

Textile reinforced mortar (TRM) is mainly used for strengthening of existing structural members whereas, on the other hand Textile reinforced concrete (TRC) is a technology implied in construction of new members for enhancing the structural behaviour. Application of TRM on the tension zone of the reinforced concrete (RC) slabs to improve the flexural capacity has been investigated by many researchers in the past. However, the effectiveness of textile fabrics, used as internal reinforcement in the RC slab (TRC technology) needs to be studied. The paper, therefore, presents the experimental research conducted on three one-way RC slabs specimens reinforced using textile grid. An innovative Polyacrylonitrile (PAN) based carbon textile grid was used as internal reinforcement in combination with the steel bars. Two textile-reinforced RC slabs having one and two layers of textile grid (SRC + 1T and SRC + 2T respectively) and one reference slab (SRC) was fabricated to investigate the flexural behaviour under a four-point loading system. The internal textile reinforcement layer(s) was confirmed to be effective, particularly in terms of improving the cracking load, ductility, deformability and toughness. The material ductility of SRC + 1T and SRC + 2T slabs were increased by 41% and 44% compared to SRC slab. Also, the deformability ratio was found to be greater than 4, indicating a ductile failure of textile-reinforced slabs. Further, based on the load-deflection relation, moment-curvature curves were derived. Moreover, these curves were also developed using Eurocode two prediction model. The experimental and the predicted moment-curvature curves showed good agreement.

show abstract

Section: Cracking Pattern and Mode Of Failurecontrasting

confidence: 59%

Flexural behaviour of RC one-way slabs reinforced using PAN based carbon textile grid

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…CFRP has the advantages of high stiffness, good durability performance, high tensile strength, and good corrosion resistance. In the field of building construction, CFRP is often used to modify and strengthen concrete structures [ 73 , 75 ].…”

Section: Types Of Fibers For Geopolymer Concrete Performance Enhancementmentioning

confidence: 99%

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

et al. 2023

View full text Add to dashboard Cite

Geopolymer is widely used as a supplement to cementitious composites because of its advantages of low carbon and environmental protection, and geopolymer concrete is also broadly used in practical engineering. In recent years, geopolymer concrete has attracted increasing interest owing to its superior mechanical properties, and a series of research results have been obtained. In this paper, from the preparation of geopolymer concrete, based on the characteristics that geopolymer concrete is brittle and easy to crack, the types and basic properties of fibers to enhance the toughness of concrete are analyzed, the advantages and disadvantages of different fibers used as a material to enhance the toughness of concrete are summarized, and we review the effects of type, shape, volume rate, aspect ratio, and hybrid fiber combinations on the static mechanical properties. The results indicate that fibers have significant potential to enhance the compressive strength, splitting tensile strength, flexural strength, and fracture toughness of geopolymer concrete, and the optimal fiber volume rate seems to be related to the fiber type. Whereas the effect of aspect ratio and hybrid fiber combinations on the properties of geopolymer concrete seems to be obvious. This paper reviews the influence of fiber on the basic mechanical properties of geopolymer concrete, which provides a solid foundation to promote the further development and application of the research on the toughness of fiber-reinforced geopolymer concrete and provides recommendations for future research.

show abstract

“…It is also an ideal cement stone reinforcing material (Yang et al, 2022;Yu et al, 2022;Liu et al, 2023;Zhou et al, 2023). The CF reinforced cement and CF grid reinforced concrete have also been studied worldwide (Ibrahim et al, 2022). For instance, Lavagna (Lavagna et al, 2018) and Huang (Huang et al, 2019) applied carbon fiber to cement, which significantly improved the integrity and durability of cement.…”

Section: Open Access Edited Bymentioning

confidence: 99%

“…The cement slurry was prepared according to API RP 10B "Recommended Practice For Testing Well Cements" (Ibrahim et al, 2022), and the water cement ratio was 0.44. Uncoated and coated CFs were added into the cement slurry to prepare cement stone.…”

Section: Preparation Of Cement Samplesmentioning

confidence: 99%

Preparation of SiO2 coated carbon fibers and its interfacial properties with cement paste matrix

Geng¹,

Ren

Yang

et al. 2023

Front. Mater.

View full text Add to dashboard Cite

As a porous brittle material, oil well cement in oil and gas well cementing is difficult to bear complex loads, which can easily lead to the failure of the mechanical integrity of cement sheath. In this paper, SiO2 coating-CF toughening material was obtained by SiO2 modified carbon fibers (CFs) surface. In addition, the mechanical properties and mechanism of SiO2 coated-CF cement stone were discussed. The obtained results showed that the mechanical properties of SiO2 coated-CF cement paste are significantly improved. After 14 days of curing, the compressive strength can reach 32.98 MPa and the tensile strength is increased by 162%. The CF after adding SiO2 surface film improves the adhesion between the interface and the fiber by forming chemical bonds at the bonding surface with the cement paste, so as to improve the CF reinforced cement paste.

show abstract

Influence of adding short carbon fibers on the flexural behavior of textile-reinforced concrete one-way slab

Cited by 10 publications

References 30 publications

Flexural behaviour of RC one-way slabs reinforced using PAN based carbon textile grid

Flexural behaviour of RC one-way slabs reinforced using PAN based carbon textile grid

The Influence of Fiber on the Mechanical Properties of Geopolymer Concrete: A Review

Preparation of SiO2 coated carbon fibers and its interfacial properties with cement paste matrix

Contact Info

Product

Resources

About