Flexural response of basalt textile reinforced concrete with pre-tension and short fibers under low-velocity impact loads

Liu, Sai; Zhu, Deju; Li, Gaosheng; Yao, Yiming; Ou, Yunfu; Shi, Caijun; Du, Yun

doi:10.1016/j.conbuildmat.2018.02.168

Cited by 25 publications

(8 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The matrix-fiber interfacial bond directly affects the mechanical performance of TRC, since it resists crack opening and crack propagation. Many studies have been investigated to improve the bonding strength of fiber yarns to matrix, such as impregnation epoxy [ 9 , 10 ], coatings with quartz sand [ 9 , 11 ], impregnation with nanoparticles [ 12 ], adding short fibers [ 10 , 11 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ], surface treatment [ 20 , 21 ], and pre-tension [ 16 , 17 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Flexural Behavior of Geopolymer-Based Carbon Textile/Basalt Fiber Hybrid Composite

Louda

Buczkowska

et al. 2021

Polymers

View full text Add to dashboard Cite

This paper presents an experimental research on the mechanical properties of the hybrid composite thin-plates of the short basalt fibers (CBFs)/carbon textile-reinforced geomortar. The effect of fiber contents and lengths of CBFs on the flexural behavior of carbon textile-reinforced geopolymer specimens (TRGs) was investigated by the four-point flexural strength and Charpy impact test. The experimental results of hybrid TRGs, on the one hand, were compared with reference TRGs, without CBF addition; on the other hand, they were compared with the results of our previous publication. According to the mixing manner applied, fresh geomortar indicated a marked reduction in workability, increasing the CBF loading. Furthermore, using CBFs with lengths of 12 mm and 24 mm makes it easy to form the fiber clusters in geomortar during mixing. According to all the CBF loadings used, it was found that TRGs showed a significant improvement in both static and dynamic flexural strength. However, the failure mode of these TRGs is similar to that of the reference TRGs, described by the process of fiber debonding or simultaneously fiber debonding and collapse. In comparison with our prior work results, neither the CBF dose levels nor the fiber lengths used in this work have yielded a positive effect on the failure manner of TRGs. According to the results of the Charpy impact test, this reveals that the anchoring capacity of textile layers in geomortar plays an important role in specimens’ strength.

show abstract

Section: Introductionmentioning

confidence: 99%

Investigation on Flexural Behavior of Geopolymer-Based Carbon Textile/Basalt Fiber Hybrid Composite

Louda

Buczkowska

et al. 2021

Polymers

View full text Add to dashboard Cite

show abstract

“…In their work, the prestress delayed the generation of cracks and improved the postcracking flexural stiffness and bearing capacity of the specimens but decreased the ductility. Liu [14] investigated the flexural properties of basalt TRC slab with pre-tension, short carbon, steel, and AR-glass fibers through three-point bending in a utilizing drop-weight impact setup. In this research, the flexural impact responses of the basalt TRC with flexural strength, flexural modulus, maximum strain, and toughness were improved by pre-tension.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigations on Flexural Behaviour of Prestressed Textile Reinforced Concrete Slabs

Ngo

Nguyen

2021

Civ Eng J

View full text Add to dashboard Cite

Nowadays, concrete is mostly prestressed with steel. But the application of prestressing steel is restricted in a highly corrosive environment area due to corrosion of prestressing steel, leading to a reduction in strength and may cause sudden failure. Carbon textile is considered an alternate material due to its corrosive resistance property, high tensile strength, and perfectly elastic. Prestressing is also the only realistic way to utilize fully ultra-high tensile strength in carbon textile material. In this study, experimental and numerical analyses were carried out for the flexural behaviour of prestressed and non-prestressed carbon textile reinforced concrete slabs. This study also focuses on the inﬂuences of textile reinforcement ratios, prestressing grades on the flexural behaviour of carbon textile reinforced concrete (TRC). Fifteen precast TRC slabs were tested, of which six were prestressed to various levels with carbon textile. The obtained results show that prestressing textile reinforcement results in a higher load-bearing capacity, stiffness, and crack resistance for TRC slabs. The ﬁrst-crack load of the prestressed specimens increased by about 85% compared with those of non-prestressed slabs. Three-dimensional finite element models were developed to provide a reliable estimation of global and local response. The modeling techniques accurately reproduced the experimental behaviour. Doi: 10.28991/cej-2021-03091712 Full Text: PDF

show abstract

“…caused by natural factors such as typhoons, earthquakes, and human factors such as explosions and collisions. As the risk of concrete structures increases by being directly exposed to extreme external forces, FRCC has received a lot of attention as one of the methods to increase the impact resistance of concrete structures against high rapid loads such as typhoons, earthquakes, explosions, and collisions [16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Resistance Performance of the VAEPC and the PAFRC Composites against a Low-Velocity Impact in Varying Temperature

Heo

Park

Kim

2020

Advances in Civil Engineering

View full text Add to dashboard Cite

This paper aims to evaluate the resistance performance of the vinyl acetate ethylene polymer cement (VAEPC) composite and the polyvinyl alcohol fiber-reinforced cement (PAFRC) composite against a low-velocity impact in varying temperature. Their impact resistance performances are analyzed and compared with plain mortar after 28 days of age. Low-velocity impact tests were carried out under the various room temperatures of −70°C, 70°C, and 140°C. Also, an INSTRON CEAST 9350 drop-tower system has been used to get the impact load, fracture energy, and displacement of the specimens while loading low-velocity impacts. From these tests, the failure pattern, shape, and strength of each test specimen were evaluated for the VAEPC, the PAFRC composite, and the plain mortar. Those test results showed that the flexural strength of both the VAEPC and the PAFRC composites has increased compared to that of the plain mortar. However, the compressive strength of the PAFRC composite decreased slightly after 28 days, while its flexural strength increased by 24.4% compared to that of the plain mortar. In addition, the drop test results show that PAFRC composite specimens have the highest impact fracture energy compared to other specimens at −70°C, 70°C, and 140°C, whereas plain mortar specimens have their lowest. This is because the PVA fiber included in the PAFRC acts as a bridge to suppress crack propagation and to improve energy absorption performance, which helps it resist relatively better against impact. It is also known that while the VAEPC composite and the plain mortar were destroyed in a form of being perforated, the specimens of PAFRC composite were observed to some extent to suppress the perforation failures. Therefore, under a load of low-velocity impact, the resistance performance of the VAEPC composite and the plain mortar was proven to show brittle fracture behavior, while the PAFRC showed ductile fracture behavior in virtue of PVA fiber reinforcement which improved its flexural performance. According to the SEM observation which followed the tests, the PAFRC composite as a fiber-reinforced material of the hydrophilic material was found to show the most excellent interfacial bond adhesion compared to the other composite and the plain mortar. The PAFRC composite manufactured in the study has been proven to be very useful as a reinforcement material in both high and low temperature environments.

show abstract

Flexural response of basalt textile reinforced concrete with pre-tension and short fibers under low-velocity impact loads

Cited by 25 publications

References 36 publications

Investigation on Flexural Behavior of Geopolymer-Based Carbon Textile/Basalt Fiber Hybrid Composite

Investigation on Flexural Behavior of Geopolymer-Based Carbon Textile/Basalt Fiber Hybrid Composite

Experimental and Numerical Investigations on Flexural Behaviour of Prestressed Textile Reinforced Concrete Slabs

Evaluating the Resistance Performance of the VAEPC and the PAFRC Composites against a Low-Velocity Impact in Varying Temperature

Contact Info

Product

Resources

About