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Empirical models for compressive and tensile strength of basalt

2023.11.14  To determine the compressive strength (CS) and tensile strength (TS) of basalt fiber reinforced concrete (BFRC), this study will develop empirical models using gene expression programming...

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(PDF) Empirical models for compressive and tensile strength of basalt ...

1 天前  To determine the compressive strength (CS) and tensile strength (TS) of basalt fiber reinforced concrete (BFRC), this study will develop empirical models using gene

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Unconfined Compressive and Splitting Tensile Strength of Basalt

2019.7.2  The strength properties of basalt fiber–reinforced biocemented (BFRB) sand specimens with various calcite contents and fiber contents are investigated through a

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Compressive strength prediction of basalt fiber reinforced

2022.3.1  In this paper, the strength prediction model of basalt fiber concrete is constructed by random forest method based on experiments to study the strengthening

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(PDF) Assessing the uniaxial compressive strength

Assessing the uniaxial compressive strength and tangent Y oung’s modulus of basalt rock using the Leeb rebound hardness test • 15 Materiales de Construcción 70 (340), October–December 2020 ...

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Sustainability Free Full-Text The Effect of Basalt

2021.11.15  Compressive strength, flexural strength, and UPV tests were performed to examine the impact of BF on produced samples after 28 days at 20 °C. The same tests were also carried out on samples

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Experimental Study on Unconfined Compressive Strength of Basalt

In order to study the mechanism and effect of basalt fiber reinforced clay soil, a series of unconfined compressive strength tests conducted on clay soil reinforced with basalt fiber have been performed under the condition of optimum water content and maximum dry density. Both the content and length of basalt fiber are considered in this paper. When

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Design of basalt fiber reinforced concrete composite beams

2023.1.2  The cubic compressive strength of concrete f cu,k was measured as 45.0 MPa, and then the axial compressive strength f cc, tensile strength f ctu and ultimate tensile strain ε ctu were determined according to the code GB50010-2010 [] as 29.6 MPa, 2.51 MPa and 107 × 10 –6, respectively.And the compressive strength of basalt FRC cubes with

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Investigating stress–strain relationship and damage

2023.8.15  The uniaxial compressive constitutive model of BFRC was established based on the damage mechanics theory. To sum up, most of the existing studies on the uniaxial compressive stress–strain relationship of BFRC only considered the basalt fiber admixture, and the proposed constitutive models were only apply to specific strength

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Fracture behavior of alkali-activated basalt powder/slag

2023.3.1  Basalt fibers and a combination of basalt + polypropylene fibers (hybrid) were used to enhance the fracture properties of the mixes, and it was found that the basalt powder/slag binary mortars achieved performance comparable with that of cement-based systems in terms of compressive strength, fracture toughness, and fracture energy.

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Prediction of compressive strength of BFRC using soft

2023.5.16  In this paper, the strength of basalt fiber reinforced concrete (BFRC) was investigated. Four percentages of basalt fiber (0.1%, 0.2%, 0.3%, and 0.4%) by volume fraction were added to concrete mix and BFRC cubes of 150 mm size were prepared and tested after 28 days curing age. It was found that the compressive strength of concrete

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Modeling strength characteristics of basalt fiber reinforced

2023.8.12  Meyyappan and Carmichael 5 used different volume fractions of basal fibers and observed that both split tensile strength and compressive strength increase in the presence of basalt fiber. However ...

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Experimental study on the mechanical and thermal properties of basalt ...

2018.5.1  This paper describes the investigation of the synthesis and improvement of the mechanical properties of quaternary epoxy-based polymer concrete (PC) using basalt fiber and clay nanoparticles.First, the effect of chopped basalt fiber on the compressive, flexural, splitting tensile and impact strengths as well as the effect of different

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Engineering, Mechanical and Dynamic Properties of Basalt

2022.12.1  This study investigates the engineering and mechanical properties of basalt fiber-reinforced (FRF) concrete, giving special attention to residual flexural strength and dynamic modal parameters. These properties, which have not been thoroughly investigated elsewhere, are a precursor to structural design applications for dynamic

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Estimating uniaxial compressive strength of rocks using

2013.8.1  Porosity is a significant physical feature of rocks due to water absorption that causes decrease in the strength. The basalt of the study area can be described as “highly porous” and ignimbrite as “extremely porous” according to the classification by Anon (1979).The average UCS of basalt is determined as 26.65 MPa.For the ignimbrite, the

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Fresh, mechanical, and durability properties of basalt fiber

2023.4.1  The compressive strength increased by about 10% at a fibers dose of 2% compared to the control mix. However, the further increase in BF dosage to 2.5% and 3% showed a negative impact on the compressive strength, where the compressive strength dropped by about 12% and 21%, respectively. ... Basalt Fibers Dose vs. the Strength

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Estimation of compressive strength of various stones based

2023.4.30  This work examines the compressive strength of natural stones, as estimated by Uniaxial compressive strength tests (UCS) and respective non-destructive tests results (Schmidt Hammer Rebound test, SHR, or an Ultrasonic Pulse Velocity transmission, UPV). In practice, aiming to correlate the values of the UCS test with the results of the

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Improving compressive strength of fly ash-based

2016.4.1  In this study, ASTM Class C fly ash used as an alumino-silicate source was activated by metal alkali and cured at low temperature. Basalt fibers which have excellent physical and mechanical properties were added to fly ash-based geopolymers for 10–30% solid content to act as a reinforced material, and its influence on the compressive

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J. Compos. Sci. Free Full-Text Chopped Basalt Fiber

2023.5.11  Basalt fiber (BF) is an environmentally friendly type of fiber that has attracted the attention of researchers in recent years due to its excellent performance in concrete constructions. This current research was conducted to investigate the effect of chopped basalt fiber on the workability, compressive strength, and impact resistance of

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Assessment of the optimal level of basalt pozzolana

2021.12.9  The compressive strength was calculated by formula as follows: Compressive strength (MPa) = Failure load/cross sectional area. Table 7 represents all the results of compressive strength and are as a function of percentage basalt content and curing time according to tested days of cube specimens and are graphically plotted in Fig. 3.

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Mechanical Properties of Basalt Specimens Under Combined

2019.4.9  The strength of the basalt specimen decreases noticeably from its uniaxial compressive strength if the specimen inclination angle changes from 0° to 15°. The empirical pillar strength formulae derived from vertical pillars cases may be inapplicable to inclined pillars even if the coal seam or orebody is thought to be sub-horizontal (having a ...

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Frontiers Geomechanical rock properties of a basaltic volcano

2015.6.9  Overall, axial compressive strength for Pacaya basalt ranges widely from 12 to 174 MPa (Table 3), with the lower end falling into strength categories as low as chalk . Given that the porosity of the rocks scales with permeability, we chose to assess the relationship of UCS with permeability, as this measures the strong control that cracks

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Mineral fibres: basalt - ScienceDirect

2020.1.1  Basalt often occurs in a large area of rock flow or crust, and sometimes in dikes, beds, stocks, basins, caps, dikes, etc. Basalt is characterized by a specific gravity of 2.7–3.3 g/cm 3, porosity of 1.28%, weathering resistance, compressive strength up to 3000 kg/cm 2 and hexagonal columnar joint development; it is easy to exploit.

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Experimental Investigations on Basalt Fibre-Reinforced

2018.10.3  Basalt fibre in concrete is still an exploratory area due to limited studies. Therefore, a systematic study on basalt fibre-reinforced concrete was carried out with percentage volume fraction of fibre 0.50 (13.0 kg/m 3 ), 0.75 (19.5 kg/m 3) and 1.00 (26.0 kg/m 3 ). The increase in compressive, splitting tensile and flexural strength is in the ...

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