Correlation between compressive strength and ultrasonic pulse velocity of high strength concrete incorporating chopped basalt fibre

The creation of sustainable composites reinforced with natural fibers has recently drawn the interest of both industrial and academics. Basalt fiber (BF) stands out as the most intriguing among the natural fibers that may be utilized as reinforcement due to their characteristics. Numerous academics have conducted many tests on the strength, durability, temperature, and microstructure characteristics of concrete reinforced with BF and have found promising results. However, because the information is dispersed, readers find it problematic to assess the advantages of BF reinforced concrete, which limits its applications. Therefore, a condensed study that provides the reader with an easy route and summarizes all pertinent information is needed. The purpose of this paper (Part II) is to undertake a compressive assessment of basalt fiber reinforced concrete’s durability features. The results show that adding BF significantly increased concrete durability. The review also identifies a research deficiency that must be addressed before BF is used in practice.

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Basalt Fiber Reinforced Concrete: A Compressive Review on Durability Aspects

Al-Kharabsheh

Arbili

Majdi

et al. 2023

Materials

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Study and Neural Network Analysis on Durability of Basalt Fibre Concrete

Shao

Wang

Gong

et al. 2023

Water

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In order to investigate the law of basalt fibre to enhance the durability of concrete, this paper selects basalt fibre length as the main factor, supplemented by novel research methods such as neural networks, to study the rule of concrete resistance to multiple types of salt erosion. Tests have shown that large doses of mineral admixtures and basalt fibres can prolong the time that concrete is eroded by salt solutions; the age of maintenance has a small effect on the mechanical and durability of the concrete; the increase in length of basalt fibres enhances the mechanical properties of the concrete, but weakens the durability. This is exacerbated by the mixing of fibres, but the increase is not significant; the effect of length on concrete resistance to mass loss, corrosion resistance factor of compressive strength, and resistance to chloride ion attack is ranked as follows: 6 mm > 12 mm > 18 mm > 6 mm + 12 mm > 6 mm + 12 mm + 18 mm. The opposite is true for effective porosity; the highest compressive strength corrosion resistance coefficient was found in the length of 6 mm, with an average increase of 6.2% compared to 18 mm, and the mixed group was generally smaller than the single mixed group. The average increase in chloride content was 25.1% for length 18 mm compared to 6 mm; the triple-doped L6-12-18 group was the largest, with an average increase of 33.9% in effective porosity over the minimum 6 mm group. Based on the data from the above indoor trials, artificial neural network models and grey cluster analysis were used to predict and analyse the data, and the prediction and categorisation results were accurate and reliable, providing a reference for subsequent studies.

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New Equations to Calculate Failure Stress and Strain of Concrete

Darvishvand

Taghia

Ebrahimi

2022

AMR

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The gravel geometry (shape and size of aggregate), and water to cement ratio affect the constitutive law of concrete. In concrete technology, it is intended to increase the failure stress and strain for enhancing the seismic performance during the earthquake. The aim of the present study is to propose mathematical equations that the independent variables are aggregate size and water to cement ratio. These equations evaluate the failure stress and strain of plain concrete in compressive behavior. The samples were prepared to cover a varied range of compressive strength from 17 to 37 MPa. Two sets of samples were selected, the rounded and sharp aggregates with a variety of sizes (9.5, 12.5, 19, and 25 mm) and water to cement ratios (0.35, 0.42, 0.54, and 0.76). Error analysis shows that the proposed relations are intolerable agreement with the test results and the models suggested by the other researchers, especially regarding failure stress.

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Correlation between compressive strength and ultrasonic pulse velocity of high strength concrete incorporating chopped basalt fibre

Cited by 3 publications

References 5 publications

Basalt Fiber Reinforced Concrete: A Compressive Review on Durability Aspects

Basalt Fiber Reinforced Concrete: A Compressive Review on Durability Aspects

Study and Neural Network Analysis on Durability of Basalt Fibre Concrete

New Equations to Calculate Failure Stress and Strain of Concrete

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