In the present study, the following conclusions are drawn from the high strain rate characterization of an igneous rocks e.g., compact basalt using uniaxial compressive SHPB device. The peak stress increases by almost 39% from strain rate 41.31/s to 186.7/s and by 31% from strain rate 186.7/s to 457.59/s. The dynamic elastic modulus of …

The effects of the strain rate on the dynamic compressive strength and dynamic splitting strength as well as the dynamic increase factor and energy absorption characteristics of the SHCC were analyzed. ... Aswath, P., & Abolmaali, S. (2018). Application of chopped basalt fibers in reinforced mortar: a review. Construction and …

In this study, the compressive and splitting tensile strength was studied after introducing chopped basalt fibers. In this research, 12 mm long and 13 μm in diameter basalt fibers were used as well as the cubes and cylinders have casted with basalt fiber reinforced concrete for 0.5 %, 1.0% and 1.5% of basalt fibers by the weight of cement ...

concrete's compressive strength, proposing a predictive model based on neural network analysis. Sun et al. [11] observed that compressive strength initially increases with BF content, then diminishes. Al-Rousan et al. [12] confirmed that an optimal BF quantity elevates concrete's dynamic modulus of elasticity, albeit a surplus can …

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. ... 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 ...

Abstract. The presence of non-connected vesicles in extensive basalt flows in western Saudi Arabia greatly affects their engineering properties such as compressive strength, modulus of elasticity, Poisson's ratio and sonic velocities. In order to evaluate some of these properties, the density and/or the porosity of the material must be known.

The optimum PE volume fraction for dynamic compressive strength was 0.1% at a strain rate of 60 s −1, 0.15% at a strain rate of 95 s −1, and 0.05% at a strain rate of 120 s −1, all with a BF volume fraction of 0.25%. The optimum fiber volume fractions for dynamic compressive toughness and dynamic peak toughness were consistent, both at …

ABSTRACT:. The presence of vesicles within basalt has a negative impact on both the unconfined compressive strength (UCS) and deformation modulus (axial stiffness) of basalt specimens. Vesicular basalt specimens (diameters of 44.45 mm) were cored from surface boulders obtained from southern Nevada. Each basalt boulder has …

The inclusion of basalt fibres significantly enhances the modulus of rupture, whereas there is no significant effect on compressive strength. Compared with control concrete, the mechanical characteristics of concrete reinforced with 1.5% by volume of basalt fibre increase by 4.45%, 22% and 57% respectively. 1.

Going through a sample of the results in Fig. 4, the compressive strength of basalt fiber mixes showed some irregularities. Basalt fibers with 0.5% content gave comparable results to that of 0% basalt content, while all basalt ratios in M3 and M4 outperformed the results with 0% content. However, M2 showed a drop in strength with …

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.

The experimental results showed high performance of basalt fibre in terms of Young's modulus, compressive and bending strength, impact force and energy. Griffin et al. [9] developed s tructural designs for hybrid glass-carbon fibre blades to analyse the performance of glass-carbon hybrid composite blades. They concluded that hybrid …

Other parameters, such as fibre length (4.77%), fibre diameter (16.32%), and fibre tensile strength (6.87%), provided significant contributions to the compressive strength of the plastic sand ...

angle ply orientation effect on compressive strength of basalt-carbon hybrid composite. Higher compressive strength and modulus were obtained when carbon fiber layers were stacked at the outer side of laminate, with hybrid composite C2 (i.e., [02C/+45B/0B]S), showing the best compressive strength and modulus among all the stacking sequence

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. …

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 …

Basalt is an important part of the earth's oceanic crust and continental crust. It has many characteristics such as high compressive strength and wide distribution, and is a common rock type in rock mass engineering (Garcia-Ramonda et al. 2022; Silva et al. 2021; Wang et al. 2021a, b). In this study, basalt is taken as the research object.

The final converted compressive strength varies with the fiber content as shown in Fig. 7. The quadratic function fitting result is y = 74.4 + 400.4 x-40833.7 x 2, ... From the analysis results, it can be found that the effect of basalt fiber on the compressive strength of RPC is limited, and the high content of basalt fiber even reduces the ...

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 …

Abstract. The ability of concrete to give a lower weight and retain good properties for strength is very important concrete structures. Lightweight concrete is known for its brittleness hence the ...

This study experimentally investigated the mechanical properties of basalt-macro polypropylene hybrid fibre reinforced concrete. Three macro polypropylene fibre volume fractions (0.3%, 0.7% and 1%), two concrete compressive strengths (30 MPa and 60 MPa) and basalt fibre volume fraction 0.1%, were used to study their influences on …

The results of the basalt-polymer composite compressive strength test p-ISSN: 1410-2331 e-ISSN: 2460- 1217 D. C. Birawidha e t al., Study of Making Polyester Resin Matrix Composites using Basalt …

The compressive strength measurements were conducted at the sample ages of 3, 7, 28, 56 and 90 days; whilst, the ultrasonic pulse velocity was measured at 28 days. The result of HSC's compressive strength with the chopped basalt fibre did not show any improvement; instead, it was decreased.

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 …

An attempt has been made to correlate the uniaxial compressive strength and Young's modulus of gabbros and basalts with Schmidt hammer rebound number, the point load strength index, Is(50) and the degree of weathering. Sixty three samples of gabbro and thirty of basalt from the ophiolitic complex of Pindos zone (Northern Greece) have been …

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 ...

DOI: 10.1016/j.conbuildmat.2023.134412 Corpus ID: 266286836; Mechanical relationship between compressive strength and sulfate erosion depth of basalt fiber reinforced concrete @article{Liu2024MechanicalRB, title={Mechanical relationship between compressive strength and sulfate erosion depth of basalt fiber reinforced concrete}, …

The paper presents the test results of basalt fiber impact on a compressive and flexural strength, resistance to abrasion and porosity of Reactive Powder Concrete (RPC). The reasons for testing were interesting mechanical properties of basalt fibers, the significant tensile strength and flexural strength, and in particular the resistance to high …

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 up to 2.3 at ...

Uniaxial compressive strength is widely used in the slope stability analysis and in the design of foundations and tunneling in rocks. Uniaxial compressive strength is also used in rock mass rating ...