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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Strength and deformation properties of granite, basalt, …

Results of the unconfined compressive strength tests on basalt indicated, that as the loading rate was increased from 1 to 1.60 y x 10. of elasticity increased. Total diametral strain decreased as …

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Compressive Property of Basalt Fiber in Composite with …

axial compressive strength. Several techniques have been proposed including the loop test10, the recoil test11-13, the micro-compression test14-17, compression test of a single-fibre composite9,18 and estimation Compressive Property of Basalt Fiber in Composite with Nano-indentation Lili Tong1, a, Limin Zhou 2,b, and Zhenqing Wang1,c

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

It is evident that from the comparison of CFJ2B3 and CFJ2B2, the CFJ2B3 is showing only a marginal increase of 7.3 % with respect to CFJ2B2 in compressive strength by introducing an additional basalt layer. Thus, from an economical and performance perspective, CFJ2B2 wrapping was selected as the optimum for further analysis.

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Empirical models for compressive and tensile strength of basalt …

When molten magma solidifies, basalt fiber (BF) is produced as a byproduct. Due to its remaining pollutants that could affect the environment, it is regarded as a waste product. To determine the compressive strength (CS) and tensile strength (TS) of ...

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Fabrication and Compression Properties of Reinforced Epoxy …

The compressive strength of prepared buoyancy material can meet the pressure resistance requirements for operations in waters of a certain depth. ... basalt fi ber; compressive strength; epoxy ...

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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 …

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Mechanical relationship between compressive strength and …

This paper introduced the experimental results on the compressive strength and the sulfate erosion depth of both ordinary concrete and basalt fiber reinforced concrete, based …

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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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Limits on strength and deformation properties of jointed basaltic …

A study of strength and deformation measurements for basaltic rocks, along with consideration of the influence of fracturing using a rock mass classification system, documents the range of brittle response for basaltic rock masses. Although basalts vary widely in composition and other physical factors, many of the properties of a basaltic rock mass appear to vary within a factor of about …

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compressive strength of basalt with mba

compressive strength of basalt with mba - rdsa.co.in. Strength theory deals with the yield and failure of materials under the complex stress state.It is an important foundation for research on the strength of materials ...

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Experimental investigation of the effect of basalt fibers on the

The properties of basalt fibers in different environments and their impact on concrete were examined. Basalt fibers have lower durability in alkaline environments compared to carbon fibers and can lose up to 80 % of their volume [9].Autoclaved environments have a negligible effect on the compressive strength of basalt fibers [9].The elastic modulus in …

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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, O. Al Hattamleh. a, S. Rababah. b. a. Civil Engineering Department, College of Engineering, The Hashemite University, (Zarqa, Jordan) b.

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Unconfined compression behavior of basalt fiber–reinforced

Basalt fiber is a promising reinforcement agent for loess engineering. In this study, unconfined compressive tests facilitated with the digital image correlation (3D-DIC) method were carried out on basalt fiber–reinforced loess to obtain the deformation images and surface strain fields at different loading moments. The reinforcement mechanism of samples with different …

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Experimental and theoretical study on compressive mechanical …

The ultimate compressive strength of the RC composite bars with a height-to-diameter ratio of 16 is lower than that of the PC composite bars because, in the compression process, the former experiences global buckling failure, and the lateral bending of the composite bars leads to a rapid loss of bearing capacity. ... Deterioration of basalt ...

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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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strength and point load strength of basalt New correlations …

Keywords: Basalt, Regression analysis, Point load strength index, Uniaxial compressive strength Introduction Uniaxial compressive strength (UCS) is an important property of rock. Uniaxial ...

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Empirical models for compressive and tensile strength of basalt …

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 …

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The Effects of Fiber Length and Volume on Material Properties …

The effect of fiber volume fraction for specimens with a design compressive strength of 30 MPa, and basalt fiber length of 12 mm and 24 mm is presented in Figure 6(a). From this figure, one can observe that the 7-day compressive strength of BFRC specimens made with 12 mm and 24 mm long fibers and with all fiber volume fraction values used in ...

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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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Mechanical performances and micro-level properties of basalt …

Compressive test results showed basalt fiber could increase compressive strength at elevated temperatures. The optimal basalt fiber volume fraction was 0.8%, whereby compressive strength was higher than that of control PVA-ECC by 62.05%, 55.45% and …

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Splitting Tensile Strength of Cement Soil Reinforced with Basalt …

Several studies have pointed out that there was a linear relationship between the tensile strength and the compressive strength of the cement soil [32,33]. Therefore, the correlation between the splitting tensile strength and the compressive strength of the cement soil reinforced with basalt fibers was investigated in this study.

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Effect of aggregate type on Compressive strength of …

basalt and gravel gave similar compressive strength while the concrete containing limestone attained higher strength. The effects of content and particle size distribution of coarse

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Studies on Mechanical Behaviour of Basalt Fibre Reinforced

It was found that the addition of basalt fibre by 1.5% and alcofine by 20% in concrete resulted in an increase in compressive strength of 8.9% for 7 days and 4.9% for 28 …

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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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Effect of Basalt Fiber Content and Length on the Strength and …

It was concluded that adding 0.5 % of 9 mm basalt fiber results in the greatest increase in unconfined compressive strength (UCS). The UCS reached 12.59 MPa, which was 71% higher than specimens without fiber, and a regression analysis was carried out to obtain the relationship among them.

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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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(PDF) Assessing the uniaxial compressive strength and

Basalt was used as an ornamental stone in many historic and ancient cities in Jordan. Measuring the uniaxial compressive strength (UCS) and the tangent Young's modulus (E t) in the laboratory ...

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Compressive Properties of Basalt Fibers and Polypropylene Fiber

The compressive strength of concrete with a 12 mm basalt fiber (BF) (1.5%) admixture is 9.08 MPa, which is 62.43% higher than that of concrete without the fiber admixture. The compressive strength was increased by 27.53 and 21.88% compared to concrete containing 3 mm BF (1.5%) and 0.5% BF (12 mm), respectively.

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Compressive Strength of Rocks

The following table provides a comprehensive list of compressive strength values for different rocks at standard room temperature (approximately 20°C or 68°F). Click on the icon to switch between SI (MPa) and US customary (psi) units.

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