Compressive stress–strain relationship and its variability of basalt

Increasing the content of basalt fibers to a certain extent can enhance the compressive strength of RAC, but it also significantly increases the variability of material performance. Additionally, the minimum compressive strengths of these three sets of specimens are 19.3, 19.7, and 21.0 MPa, respectively, indicating that the influence of fiber ...

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EFFICACY OF BASALT AND GRANITE AS COARSE …

Compressive strength for basalt 36.39N/mm2 while 37.16N/mm2 for granite. 24.81N/mm2 tensile strength for basalt while 12.57N/mm2 for granite, 31.83N/mm2 flexural strength for basalt while 27.97N/mm2 for granite. From the above results, it can be deduced that basalt has higher strength properties than granite. Therefore, more suitable for coarse ...

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Estimation of compressive strength of various stones based on …

A stone's compressive strength is usually estimated with a typical uniaxial compressive strength test (UCS), ... Marble presents differences concerning its density, or porosity, though it presents a wide range of compressive strength. Basalt is used all over the world, and because of its volcanic origin, it is an abundant source of basalt ...

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Dynamic compressive behavior of hybrid basalt-polypropylene …

The addition of basalt fiber (BF) and polypropylene fiber (PF) improves the strain rate sensitivity of the dynamic compressive strength, with increases of 19.21 %, 7.37 %, 22.60 %, and 11.37 % observed for BCAC-0.1, PCAC-0.1, BPCAC-0.1, and BPCAC-0.2, respectively, compared to CAC at a strain rate of 133 −143 s −1. The combined content of ...

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Predicting the compressive strength of fiber-reinforced recycled

Fiber-reinforced recycled aggregate concrete (FR-RAC) has recently gained more popularity because of its advantages, high strength, eco-friendliness, and cost-effectiveness. This study uses an advanced machine-learning technique for forecasting the compressive strength of FR-RAC. In this study, an experimental database that contained pertinent data from several …

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The Prediction of Compressive Strength and Compressive …

The optimal percentage of BF for compressive strength was 1.2. The compressive strength was significantly improved by adding 1.2% of BF. In fact, the improvement in compressive strength of High-Performance Concrete was due to the incorporation of BF and cement matrix at the microscopic scale.

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Studies on Mechanical Behaviour of Basalt Fibre Reinforced

This cube's compressive strength was calculated using IS: 516-1959. Casting standard-sized concrete cubes of 150 mm on a side will reveal the material's compressive strength. ... The performance of basalt fibre in high strength concrete. J Inform Knowl Res Civil Eng 2(2):117–124. Google Scholar Monish M, Srivastava V, Agarwal VC, Kumar R ...

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Strength, durability and finite element analysis of hybrid jute/basalt

Under normal, seawater, and potable water conditions, CFJ2B2 specimens showed axial compressive strengths of 38.54 MPa, 35.75 MPa, and 36.57 MPa, respectively, with an increase of nearly 65 % in compressive strength compared with unconfined specimen.

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Prediction of the Effect of Fly Ash on the Unconfined Compressive

In this study, the effects of fly ash (FA) and basalt fiber (BF) additives on the unconfined compressive strength (qu) of kaolin clay were experimentally investigated, and a dataset was created based on the results. This dataset was used in an artificial neural network (ANN) model to predict the qu based on the additive ratio, water content, and curing time. For …

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Alkali-activated basalt powder/slag systems: compressive …

[19] investigated the compressive strength of NaOH-activated basalt systems by varying the activator dosages and curing temperatures. They determined that a moderate compressive strength (about 16 MPa) can be realized and the compressive strength can be improved by increasing the curing temperature and duration.Moreover,they ...

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Correlation between Schmidt hardness, uniaxial compressive strength …

Volcanic rocks from the Bodrum Peninsula have been studied to establish a relationship between the uniaxial compressive strength (UCS), Young's modulus (E) and Schmidt hammer rebound number (N). Test results obtained on andesites, basalts and tuffs have been assessed statistically and the parameters obtained correlated. Regression equations were …

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(PDF) Assessing the uniaxial compressive strength …

Measuring the uniaxial compressive strength (UCS) and the tangent Young's modulus (E t) in the laboratory requires premium quality specimens with special core dimensions. This research focuses...

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Limits on strength and deformation properties of jointed basaltic …

Typical values of strength parameters for intact basalt at ambient temperature (20°C) and negligible confining pressure are Young's modulus, 78±19 GPa; Poisson's ratio, 0.25±0.05; …

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Assessing the uniaxial compressive strength and tangent Young's …

Basalt was used as an ornamental stone in any historic and ancient cities in Jordan. Measuring the uniaxial compressive strength (UCS) and the tangent Young's modulus (Et) in the laboratory requires premium quality specimens with special core dimensions. This research focuses on correlations both UCS and Et with Leeb Rebound Hardness Test (LRH).

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Mechanical relationship between compressive strength and …

After the sulfate erosion test, the compressive strength of OC and BFRC was obtained through the standard compressive strength test according to the Standard Test Method for Mechanical Properties of Ordinary Concrete (GB/T 50081–2021) [23]. A total of 160 specimens were tested by YAW-300 electro-hydraulic servo pressure test machine.

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Empirical Estimation of Uniaxial Compressive Strength of Rock: …

Empirical relationships for estimating Uniaxial Compressive Strength (UCS) of rock from other rock properties are numerous in literature. This is because the laboratory procedure for determination of UCS from compression tests is cumbersome, time consuming, and often considered expensive, especially for small to medium-sized mining engineering projects. …

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Estimating the compressive and tensile strength of basalt fibre

This research presents novel hybrid machine learning models for predicting the compressive strength (CS) and tensile strength (TS) of basalt fibre reinforced concrete …

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Studies on strength properties of basalt fibre reinforced concrete

The experimental test results of compressive strength and split tensile strength are showing on the table 3 against various volume fractions of basalt fibres such as 0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3% against the age of curing 7 days and 28 days. Fig. 5 shows, the 7 days compressive strength is having almost 55% to 64% of 28 days compressive strength for the …

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Estimating the Unconfined Compressive Strength of Vesicular

ABSTRACT. ABSTRACT: Understanding and predicting the intact strength of rock is very important in design of foundations, tunnels, and in other engineering projects. The presence of vesicles within basalt has a direct impact on the unconfined compressive strength (UCS) of the intact rock. Over 130 basalt samples from foundation projects for a large liquid …

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Mechanical Characterization of Compact Basalt by Using SHPB …

It may be seen from Table 2 that the dynamic compressive strength of compact basalt is 4.14 to 7.52 times that of the static compressive strength for strain rates varying from 41.31/s to 475.59/s. The correlation equation for compact basalt with a coefficient of determination ( R 2 ) = 0.84 is presented in Figure 4 and given by

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Experimental Study of the Compressive Strengths of Basalt Fiber …

The dynamic compressive strength of basalt fiber-reinforced concrete was bigger than that of ordinary concrete. The rapid development of modern society has increased the demand for high-performance geo-materials. As an advanced cementitious composite, fiber-reinforced concrete has attracted much attention and has been widely applied to various ...

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The Effects of Fiber Length and Volume on Material Properties …

2.2. Mix Proportions and Test Samples. In order to evaluate the influence of adding different fiber volume fractions and basalt fiber length on the mechanical properties of plain concrete (PC) with different design compressive strength (30.0, 40.0, and 50.0 MPa), several different test mix proportions were designed and evaluated.

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Strength and deformation properties of granite, basalt, limestone, …

Results of the unconfined compressive strength tests on basalt indicated that as the loading rate was increased from 1 to 1.60 x 107 psi/sec, ultimate strength, total axial strain, and Young's …

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Empirical models for compressive and tensile strength of basalt …

Introduction. Basalt fibers (BF) are produced from the basalt rocks which are formed because of volcanic lava solidification. BF are abundantly found on earth due to their volcanic origin 1, 2.BF have higher viscosity and resistivity of temperature shifts from low to high which ascribes higher Compressive Strength (CS) and durability 1.Micrograph Analysis show that BF have good …

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(PDF) Estimation of Compressive Strength of Basalt Fiber …

Background: In this study, the unconfined compressive strength (qu) of a mixture consisting of clay reinforced with 24 mm-long basalt fiber was estimated using extreme learning machine (ELM).

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Uniaxial compressive strength ( c) and deformation modulus …

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Compressive strength prediction of basalt fiber reinforced …

The compressive strength prediction of Basalt Fiber Reinforced Concrete (BFRC) is a complex task influenced by numerous factors. For traditional empirical formula methods, difficulties such as the ...

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Geotechnical Evaluation of Basalt Rocks: A Review in …

Understanding the physical and geotechnical properties of basalt rocks is essential for ensuring the stability and safety of structures built on or within these formations. It is crucial to...

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Strength and deformation properties of granite, basalt, limestone, …

The dynamic compressive strength factor for the granite was less than l; for the basalt, 1.35; for the limestone, 1.52; and for the tuff, 1.74. The compressional wave velocity of rock is affected by increases in both the applied axial stress and confining pressure.

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Assessing the uniaxial compressive strength and tangent …

Measuring the uniaxial compressive strength (UCS) and the tangent Young's modulus (Et) in the laboratory requires pre-mium quality specimens with special core …

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