Comparative analysis of the effects of aggregates and fibres on the fracture performance of lightweight aggregate concrete based on types I and II fracture test methods

Yang, Jinbao; Song, Changkai; Wang, Qinting

doi:10.1016/j.tafmec.2021.103202

Cited by 12 publications

(5 citation statements)

References 34 publications

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“…**: X represents the unknown and likely spatially variable ratio between epoxy resin and C-S-H particles (Trtik et al 2013). used fiber could be classified into glass fiber, polypropylene fiber, polyvinyl alcohol fiber, polyethylene fibers, carbon fiber, basalt fiber and steel fiber (Du et al 2021;Yang et al 2022). For evaluating the influence of length and cross section of fiber on the properties of concrete, aspect ratio that is the value of fiber length divided by cross-sectional diameter is introduced (Du et al 2021).…”

Section: Fiber Reinforcementmentioning

confidence: 99%

Recent Advances in X-ray Computed Tomography for Alkali-Activated Materials: A Review

Kong

Kato

Kurumisawa

2023

ACT

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Alkali-activated materials (AAMs) have been extensively studied due to their high performance and low carbon emissions. However, the long-term durability of AAMs remains a major concern, which is closely related to their microstructures and pore networks. X-ray computed tomography (CT) has emerged as a powerful non-destructive technique for threedimensional microstructural analysis in the field of civil engineering. While CT has been widely used to investigate cement-based materials, its application to AAMs is still limited. In this review, we provide a comprehensive summary of the background information and applications of CT in AAM research, focusing on pore structure analysis, phase identification, degradation analysis, fiber reinforcement, temporal evolution and simulations. Furthermore, the current challenges and future perspectives are also discussed.

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Section: Fiber Reinforcementmentioning

confidence: 99%

Recent Advances in X-ray Computed Tomography for Alkali-Activated Materials: A Review

Kong

Kato

Kurumisawa

2023

ACT

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“…[12][13][14][15][16] The results showed that adding proper amount of basalt fiber could hinder the expansion of cracks in concrete, 14 and had a positive effect on improving the compressive, flexural, tensile, splitting tensile, [12][13][14][15] fracture toughness and fracture energy of concrete. 16 In addition, Alaskar et al 17 studied the mechanical properties of basalt fiber-reinforced concrete exposed to high temperatures ranging from 100 C to 600 C. The results showed that the splitting and flexural strength of basalt fiber-reinforced concrete after high temperatures were significantly higher than those of concrete without basalt fiber. The addition of fibers had little effect on the compressive strength and elastic modulus of concrete after high temperatures.…”

Section: Introductionmentioning

confidence: 97%

“…Because basalt fiber has excellent mechanical properties, corrosion resistance, thermal properties, low cost, and no pollution 11 . Many scholars have studied the mechanical properties of concrete with basalt fiber content ranging from 0.1% to 2% by volume 12–16 . The results showed that adding proper amount of basalt fiber could hinder the expansion of cracks in concrete, 14 and had a positive effect on improving the compressive, flexural, tensile, splitting tensile, 12–15 fracture toughness and fracture energy of concrete 16 .…”

Section: Introductionmentioning

confidence: 99%

“…Many scholars have studied the mechanical properties of concrete with basalt fiber content ranging from 0.1% to 2% by volume 12–16 . The results showed that adding proper amount of basalt fiber could hinder the expansion of cracks in concrete, 14 and had a positive effect on improving the compressive, flexural, tensile, splitting tensile, 12–15 fracture toughness and fracture energy of concrete 16 . In addition, Alaskar et al 17 studied the mechanical properties of basalt fiber‐reinforced concrete exposed to high temperatures ranging from 100°C to 600°C.…”

Section: Introductionmentioning

confidence: 99%

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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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“…The methods that have been established for determining the fracture energy in concrete [7] are categorized into two primary methods:, namely the Work of Fracture Method (WFM) and the Size Effect Method (SEM). WFM has been used for determining the fracture energy of various lightweight concrete types, including foam concrete [8], polypropylene fiber concrete [9], and limestone [10]. Meanwhile, SEM is widely applied for lightweight concrete using expanded clay aggregates [11].…”

Section: Introductionmentioning

confidence: 99%

Method for Determining Fracture Energy of a Polypropylene Coarse Lightweight Aggregate Concrete Beam Using Digital Image Correlation

Musalamah,

Purnomo,

Handika

2024

The 7th Mechanical Engineering, Science and Technology International Conference

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Comparative analysis of the effects of aggregates and fibres on the fracture performance of lightweight aggregate concrete based on types I and II fracture test methods

Cited by 12 publications

References 34 publications

Recent Advances in X-ray Computed Tomography for Alkali-Activated Materials: A Review

Recent Advances in X-ray Computed Tomography for Alkali-Activated Materials: A Review

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

Method for Determining Fracture Energy of a Polypropylene Coarse Lightweight Aggregate Concrete Beam Using Digital Image Correlation

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