Fracture performance and numerical simulation of basalt fiber concrete using three-point bending test on notched beam

Sun, Xinjian; Gao, Zhen; Cao, Peng; Zhou, Changjun; Ling, Yifeng; Wang, Xuhao; Yong, Zhao; Diao, Mushuang

doi:10.1016/j.conbuildmat.2019.07.244

Cited by 100 publications

(27 citation statements)

References 30 publications

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“…From Figures 10 and 11, it can be seen that the fitting result of 0.1%-0.4% was significantly better than that of 0.5% and 0.6% under the working condition in this paper. The latter also had a certain gap with the relevant literature [13,15,30], which is mainly due to the pouring process of fiber reinforced concrete and the difference of fiber itself. Therefore, in this paper, only 0.1%-0.4% was included in the analysis of toughness and compression ratio of BFRC.…”

Section: Performance Parameters Of Compressing and Bendingmentioning

confidence: 96%

“…Under this condition the larger the volume content of the fiber is, the more obvious the reinforcement effect will be. But the ideal result is conflicted with the existing research results [13][14][15][16][17]. The theory of fiber spacing is based on the linear elastic fracture mechanics.…”

Section: Introductionmentioning

confidence: 94%

“…First, basalt fiber reinforces the concrete in a microscopic perspective and acts as a bridge at the cracks with its high elastic modulus and tensile strength [13,27]. As well, it can inhibit crack propagation, increasing the energy absorption capacity of concrete and improving the toughness of concrete [14][15][16]. Then fibers and concrete are exceptionally combined when basalt fiber excellently disperse in concrete.…”

Section: Introductionmentioning

confidence: 99%

“…The Loading-Deflection curve of bending test.3.2.1. Compressive Strength and Bending StrengthDue to the limited data in this paper, the relationship between compressive strength ratio, flexural strength ratio and fiber characteristic value (lV f d )were obtained by quoted reference[13,15,30] inFigures 10 and 11.…”

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confidence: 99%

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Experimental Study on Basic Mechanical Properties of Basalt Fiber Reinforced Concrete

et al. 2020

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Blending a certain proportion of basalt fiber into concrete improves the toughness of concrete, which prevents cracking and avoids the brittle behaviors. In this paper, the compressive, tensile, and flexural tests of concrete with different basalt fiber contents were carried out. Then the test phenomena, failure modes, and mechanical properties were compared and analyzed to derive the relationship between the basalt fiber contents and mechanical properties. The toughness and crack resistance performance of basalt fiber reinforced concrete were evaluated by the fracture energy, advanced toughness parameters, and characteristic length proposed by Hillerborg. The correlation coefficient of basalt fiber was introduced to establish the calculation formula for mechanical properties of basalt fiber reinforced concrete. The results indicated that basalt fiber significantly improved the toughness and crack resistance performance of concrete. The enhancing effect of the basalt fiber on the compressive strength of concrete is lower than that of tensile strength and flexural strength. Moreover, the improvement effect was the highest with the basalt fiber content was 0.3% and 0.4%.

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Section: Performance Parameters Of Compressing and Bendingmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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Experimental Study on Basic Mechanical Properties of Basalt Fiber Reinforced Concrete

et al. 2020

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“…Basalt fiber is formed by melting and drawing of basalt ore at high temperature. It has advantages such as high-temperature resistance, chemical resistance, good mechanical properties, and natural compatibility with concrete [23][24][25][26][27]. Research studies on BFRC have been carried out.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Performance and Numerical Simulation of Basalt Fiber Reinforced Concrete (BFRC) Using Double‐K Fracture Model and Virtual Crack Closure Technique (VCCT)

Yong

Sun

Cao

et al. 2019

Advances in Civil Engineering

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This paper mainly investigates the fracture parameters of Basalt Fiber Reinforced Concrete (BFRC) with various fiber lengths and dosages using Double-K fracture model. The model was developed by fracture criterion using ABAQUS Virtual Crack Closure Technique (VCCT), and the results of the model and experiments were compared. The basalt fiber with length of 6 mm and 12 mm was added into concrete in the dosage of 0.0%, 0.1%, 0.2%, 0.3%, 0.4%, and 0.5% by volume of concrete, respectively. Concrete specimens were cast into three dimensions, i.e., 60 mm × 180 mm × 480 mm, 80 mm × 240 mm × 640 mm, and 100 mm × 300 mm × 800 mm. Then, three-point bending test was conducted on precast-notched beams. The load versus cracking mouth opening displacement (P-CMOD curve) was developed in order to evaluate cracking and breaking load. The initial fracture toughness and unstable fracture toughness were derived from the Double-K fracture model aimed to optimize the fiber length and dosage. The results showed that the initial fracture toughness and unstable fracture toughness increased first and then decreased with the increase in fiber dosage, and basalt fiber with length of 6 mm and dosage of 0.2% performed the best toughening effect on concrete. The comparison results showed that numerical simulation can better simulate the initiation and propagation of BFRC fractures and achieve the dynamic propagation process of fractures.

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Fracture behavior of basalt fiber‐reinforced concrete subjected to high temperatures

Wang

Zhao

Song

et al. 2022

Structural Concrete

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The three‐point bending test was conducted and the digital image correlation (DIC) technique was used to observe the full‐field displacement and strain of the notched beam. The initial cracking load and the crack mouth opening displacement were determined based on the deformation field near the tip and mouth of the notch. The initial cracking toughness Kini and the unstable fracture toughness Kun calculated according to the double‐K fracture model, the fracture energy GF and the ductility index Du determined with a modified method, and the equivalent fracture toughness K at four different deformation stages, were analyzed under different temperatures and basalt fiber contents. The results showed that Kini exhibited a monotonic decrease trend with the increasing temperature, indicating that the notched beam was prone to initial cracking after high temperatures. However, Kini rose slowly with the increase of the fiber content, suggesting that the basalt fiber had little influence on Kini. At the temperatures below 400°C, the Kun, GF, Du, and K at each deformation stage increased with the rise of temperature. At the temperatures above 400°C, the Kun, GF, Du, and K at each deformation stage apparently decreased with the increase of temperature. Under the current test conditions, the basalt fiber content of 0.4% by volume had the greatest improvement on the fracture performances of concrete after high temperatures.

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Fracture performance and numerical simulation of basalt fiber concrete using three-point bending test on notched beam

Cited by 100 publications

References 30 publications

Experimental Study on Basic Mechanical Properties of Basalt Fiber Reinforced Concrete

Experimental Study on Basic Mechanical Properties of Basalt Fiber Reinforced Concrete

Mechanical Performance and Numerical Simulation of Basalt Fiber Reinforced Concrete (BFRC) Using Double‐K Fracture Model and Virtual Crack Closure Technique (VCCT)

Fracture behavior of basalt fiber‐reinforced concrete subjected to high temperatures

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