Acoustic emission characteristics and crack resistance of basalt fiber reinforced concrete under tensile load

Xie, Huanzhen; Zhang, Dongbin; Zhang, Fei; Lin, Chang‐Yu; Fang, Shizheng

doi:10.1016/j.conbuildmat.2021.125442

Cited by 45 publications

(4 citation statements)

References 26 publications

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“…The severe fossil fuel consumption and the corresponding environmental problems are becoming more and more prominent, 1,2 so it is urgent to develop and prepare new green and lightweight products 3,4 . Basalt fiber (BF) is an emerging natural, environmental‐friendly, and completely degradable in the natural environment, and recognized as a label‐free environmental material 5–7 . Due to the excellent features such as specific strength and corrosion resistance, 8,9 in addition to being an excellent construction material when blended with concrete, 10,11 BF‐reinforced polymer composites are of great value in automotive manufacturing, aerospace, and construction 12–15 …”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical properties, thermal behavior and foaming ability of PP‐g‐MAH modified PP/BF composites

et al. 2023

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The mechanical properties of fiber‐reinforced polymer composites strongly depend on its interfacial bond strength and fiber content, and their further lightweight is the current urgent demands for industry. Basalt fiber (BF), as an emerging natural and environmental‐friendly material, possess a broad application prospect as it can replace glass fiber. Herein, strong PP/BF composites with excellent heat deflection temperature and enhanced impact performance were successfully prepared, which augmented with the increase of BF content. The effect of PP grafted with maleic anhydride (PP‐g‐MAH) on the interfacial bonding properties between BF and PP was investigated based on the PP/20BF composite system, which was significantly improved due to the reaction of maleic anhydride polar groups with the hydroxyl groups on the BF surface. The incorporation of PP‐g‐MAH led to 24.7%, 46.9%, and 77.2% increase in tensile strength, flexural strength and impact strength of PP/20BF composites, respectively. Moreover, the crystallization properties, rheological behavior and thermal stability of the composites were significantly enhanced, which all contributed to the refinement and densification of cellular structure. The cell size was reduced from 36.38 to 13.41 μm after the addition of PP‐g‐MAH with an opening distance of 2 mm, and the cell density was enhanced by nearly one order of magnitude to 6.43 × 107 cells/cm3. The cellular structure further lightens the weight of product and promotes the lightweight development of PP/BF composites.

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Section: Introductionmentioning

confidence: 99%

Enhanced mechanical properties, thermal behavior and foaming ability of PP‐g‐MAH modified PP/BF composites

et al. 2023

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“…At present, there are many studies on basalt fiber reinforced concrete, but there are few researches on the application of basalt fiber to early strength concrete 33,34 . And its excellent mechanical properties can greatly improve the comprehensive properties of early strength concrete at early age 35,36 . In view of this, the dynamic compression test were carried out on early strength concrete (ESC) and basalt fiber reinforced early strength concrete with fiber volume content of 0.1%, 0.2%, and 0.3% (BFRESC: BFRESC1, BFRESC2, BFRESC3) at early ages (4 h, 12 h, 1 days) by the SHPB test system.…”

Section: Introductionmentioning

confidence: 99%

“…33,34 And its excellent mechanical properties can greatly improve the comprehensive properties of early strength concrete at early age. 35,36 In view of this, the dynamic compression test were carried out on early strength concrete (ESC) and basalt fiber reinforced early strength concrete with fiber volume content of 0.1%, 0.2%, and 0.3% (BFRESC: BFRESC1, BFRESC2, BFRESC3) at early ages (4 h, 12 h, 1 days) by the SHPB test system. The effects of curing age and basalt fiber content on dynamic mechanical properties of ESC was analyzed in terms of dynamic compressive strength, dynamic strength increase factor and specific energy absorption, and a DIF calculation model for early strength concrete with different ages was proposed.…”

mentioning

confidence: 99%

Early age dynamic mechanical properties of basalt fiber reinforced early strength concrete

Wang,

Bai,

Liu

et al. 2023

Structural Concrete

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The dynamic compression test was carried out on basalt fiber reinforced early strength concrete (BFRESC) with ages of 4–24 h by the split Hopkinson pressure bar (SHPB) test system. The effects of curing age and basalt fiber content on dynamic mechanical properties of ESC was analyzed. The result shows that the dynamic compressive strength and specific energy absorption of BFRESC at early ages increase continuously with the increase of fiber content. The dynamic compressive strength of concrete at the early ages increases exponentially with the strain rate. With the increase of curing age, the strain rate sensitivity of dynamic compressive strength of concrete increases gradually, and the strain rate sensitivity of dynamic compressive strength of BFRESC with fiber content of 0.1% is the strongest. The specific energy absorption of concrete at early ages increases linearly with the strain rate. With the increase of curing age, the strain rate sensitivity of specific energy absorption of concrete increases gradually, and basalt fiber can enhance the strain rate sensitivity of specific energy absorption of concrete. Based on the comparison with the formula for dynamic increase factor (DIF) calculation provided by Comite Euro‐International du Beton (CEB), etc., a model of DIF based on the increase of curing age is proposed.

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“…It is also commonly used in cement-based materials as an aggregate and fiber due to its high strength, electrical insulation, corrosion resistance, and high-temperature resistance [ 8 , 9 , 10 ]. The researches on basalt materials in cement-based materials focus primarily on macro properties [ 11 , 12 ], lacking a deep explanation of the influence of its surface chemical properties on cement-based materials. To study the influence of basalt on the properties of cement-based materials (i.e., fluidity, hydration, and strength) at the micro and nanoscale, BP is used.…”

Section: Introductionmentioning

confidence: 99%

Effect of Basalt Powder on Hydration, Rheology, and Strength Development of Cement Paste

Che

Liu

et al. 2022

Materials

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Basalt materials (e.g., basalt powder, aggregate, and fiber) are commonly used in cement-based materials. To understand the mechanism of the influence of basalt on the properties of cement-based materials (i.e., fluidity, hydration, and strength), zeta potential tests with different Ca2+ concentrations were carried out using basalt powder (BP). It is found that BP has a weaker absorption for Ca2+ compared to cement and quartz particles, which is directly related to its surface chemical properties. This weak absorption has a significant influence on the rheology and early-age hydration of cement paste. Moreover, the morphology of hydrate on the surface of the material observed by scanning electron microscope (SEM) also shows that the growth of CSH on the surface of BP particles is smaller than that of cement particles, indicating that BP delays the formation of CSH. Rheological tests showed that the reduction of BP’s adsorption of calcium ions weakened the electrostatic repulsion between particles, which led to the reduction of rheological properties. The influence of BP on the strength of cement paste was studied through crack characterization and fracture observation. The results show that the interfacial strength between BP and hydration products is very weak and does not increase with the hydration process, and the chemical reaction of BP is not obvious. In addition, the substitution of BP for cement leads to a dilution effect. These factors cause the strength of cement paste to decrease.

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Acoustic emission characteristics and crack resistance of basalt fiber reinforced concrete under tensile load

Cited by 45 publications

References 26 publications

Enhanced mechanical properties, thermal behavior and foaming ability of PP‐g‐MAH modified PP/BF composites

Enhanced mechanical properties, thermal behavior and foaming ability of PP‐g‐MAH modified PP/BF composites

Early age dynamic mechanical properties of basalt fiber reinforced early strength concrete

Effect of Basalt Powder on Hydration, Rheology, and Strength Development of Cement Paste

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