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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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Estimating uniaxial compressive strength of rocks using genetic

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 lowest UCS is observed in …

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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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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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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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Investigation of tensile strength and deformation behaviors of basalt

The frequent occurrence of geological disasters in the Loess Plateau is related to the low tensile strength of the loess. Previous studies on fiber-reinforced loess mainly focused on compressive properties, and there have been fewer studies on tensile behaviors, especially when subjected to dry-wet cycles. In this paper, the tensile strength and deformation behaviors of …

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Properties of Basalt

Explore a comprehensive list of basalt properties in both SI and US customary units at normal temperature and pressure (NTP).

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Empirical models for compressive and tensile strength of …

compressive strength (CS) and tensile strength (TS) of basalt ber reinforced concrete (BFRC), this study will develop empirical models using gene expression programming (GEP), Articial Neural

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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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STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES

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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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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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Properties of Basalt | Physical | Thermal

Rocks are rated on the on the Moh's Hardness Scale which rates the rocks on the scale from 1 to 10. Rocks with hardness 1-3 are soft rocks from 3-6 are medium hardness rocks and 6-10 are hard rocks. The hardness of Basalt is 6 whereas …

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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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Estimation of Compressive Strength of Basalt Fiber-Reinforced

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). The aim of this study is to estimate the results closest to the data obtained through experimental studies without the need for experimental studies. The literature review …

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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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Compressive strength prediction of basalt fiber reinforced …

Among them, compressive strength is the most important reference index in the mechanical properties of concrete, which significantly impacts the safe use of concrete. Therefore, the accurate and rapid prediction of the compressive strength of basalt fiber concrete (BFRC) has essential application value in practical engineering applications.

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Engineering, Mechanical and Dynamic Properties of Basalt Fiber

From the results of the modal test, as shown in Table 7, and the compressive test, as presented in Table 4 and Figure 4, the compressive strength and dynamic MOE have shown a similar trend when the volume fraction of basalt fiber is increased continuously, with M 2 (0.25%) showing the highest compression and dynamic MOE value.

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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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(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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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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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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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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Uniaxial compressive strength ( c) and deformation modulus …

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Assessing the uniaxial compressive strength and tangent …

Assessing the uniaxial compressive strength and tangent Young's . modulus of basalt rock using the Leeb rebound hardness test. H. Aldeeky . a ... Assessing the uniaxial compressive strength and tangent Young's modulus of basalt rock using the Leeb rebound hardness test • 3 Materiales de Construcción 70 (340), October–December 2020 ...

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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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Dynamic compressive properties of Kalgoorlie basalt rock

The test results show that Kalgoorlie basalt rock exhibits high sensitivity to strain rate effect on its compressive strength especially above 100/s and dynamic increment factor …

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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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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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