- منطقة بودونغ الجديدة ، شنغهاي ، الصين .
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Dynamic compressive behaviour of basalt-polypropylene fibre-reinforced concrete (BPFRC) was experimentally investigated using a 75-mm-diameter split-Hopkinson pressure bar. The results showed that the addition of basalt fibre (BF) and polypropylene fibre (PF) is effective at improving the impact-resistance behaviour of …
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2.5. Uniaxial compressive strength test The uniaxial compressive strength (UCS) is a frequently applied test for measuring the strength of rocks and is performed according to specifications documented by the International Society for Rock Mechanics [11]. UCS tests were conducted with Cullinan T66N kimberlite core samples with a diameter
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The feasibility of using kimberlite tailings as aggregates in concrete was assessed. Compressive strength and selected durability tests were carried out on concretes made using various replacement levels (0, 40, 60 and ) fine and/or coarse blended crushed andesite and kimberlite tailings as aggregates.
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The aim of this paper is to estimate the uniaxial compressive strength (UCS) of rocks with different characteristics by using genetic expression programming (GEP). For this purpose, five different types of rocks including basalt and ignimbrite (black, yellow, gray, brown) were prepared.
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In this study, we investigated the buckling performance of basalt fiber reinforced polymer (BFRP) sandwich infill panels. Fiber Reinforced Polymer (FRP) is a major evolution for energy dissipation when used as infill material of frame structure, a basic Polymer Matrix Composite (PMC) infill wall system consists of two FRP laminates …
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Physical Properties of Basalt. Physical properties of rocks are used to identify the type of rocks and to discover more about them. There are various physical properties of Basalt like Hardness, Grain Size, Fracture, Streak, Porosity, Luster, Strength etc which defines it.
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Khan et al. [36] demonstrated that the compressive strength and fracture resistance of concrete were greatly improved by adding different lengths and doses of basalt fibers. In this study, cement-reinforced epoxy macrosphere (CR-EMS), hollow glass microspheres (HGMS) and basalt fibers (BF) were filled into a cement matrix and …
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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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6.1.7 Compressive Strength. What Is Flint ... Kimberlite and Basalt belong to Igneous Rocks.Texture of Kimberlite is Porphyritic whereas that of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Kimberlite appears Dull and Banded and Basalt appears Dull and Soft. The luster of Kimberlite is subvitreous to dull while that of Basalt ...
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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 …
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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.
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Compressive strength and selected durability tests were carried out on concretes made using various replacement levels (0, 40, 60 and ) fine and/or coarse blended crushed andesite ... 10% fines aggregate crushing value test maybe useful to quantify the granular strength of the kimberlite tailings aggregates.
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To this end, we investigate tension, compression, and shear specimens, cut from quality autoclave-cured basalt composites. Our findings indicate that, in terms of strength and stiffness, unidirectional basalt fiber composites are comparable to, or better than epoxy composites made from E-glass fibers.
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kimberlite mine, making Letšeng the highest average dollar per carat kimberlite diamond ... is approximately 5 ha including a large basalt raft. The Satellite Pipe comprises two phases of kimberlite, namely North Volcaniclastic ... comprising uniaxial compressive strength measurements, spacing, orientation and condition of discon- ...
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This paper presents the comparative study of effect basalt, glass and steel fiber on compressive and flexural strength of M40 grade concrete. For flexural and compressive strengthening of reinforced concrete, total thirty-nine cubes and thirty-nine beams
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[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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This study investigates the predictive capabilities of Artificial Neural Network (ANN), Random Forest (RF), and Random Tree (RT) models for determining the compressive strength (CS) of concrete, with a specific focus on the individual and hybrid effects of Basalt Fiber (BF) and Polypropylene Fiber (PPF) on CS. The RF model …
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The relative residual splitting tensile strength increases as the basalt fibre content increases. Nano-silica is generally beneficial to the improvement of the compressive strength at different temperatures. ... The compressive strength decreases significantly in the range of 400–600 °C, and the decrease range is mostly between 40% …
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