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In case of the compressive strength, the increase can be also observed [17,19], as well as reduction of the strength along with the basalt fiber content in the concrete [13,14,15], and also the increase of the strength, and then its drop when a specific amount of fibers in the concrete is exceeded [8,16].Reduction of the concrete compressive strength is …
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For hybrid fiber reinforced mortar with 0.2% of basalt fiber and 0.1% polypropylene fiber at 200℃, the compressive strength and flexural strength increase by 18.53% and 21.73% compared with the ...
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To study the effects of basalt fibers (BFs), calcium sulfate whiskers (CSWs), and modified calcium sulfate whiskers (MCSWs) on the compressive strength and dynamic modulus of elasticity of concrete, this paper utilizes Mercury Intrusion Porosimetry (MIP) to measure the microstructure of concrete and calculate the fractal dimension of …
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Estimating compressive strength. General rock failure criterion can be reduced to a few parameters dependent on lithology (m) and the uniaxial compressive strength (C 0).Lithology is commonly …
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This manuscript proposes a strength and ductility of reinforced concrete (RC) using basalt fibre-reinforced polymers (BFRP). The lightweight materials like fibre-reinforced polymers (FRPs) are providing superior structural performance and durability in reinforced concrete members over traditional materials. Due to its light weight property, …
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As can be seen from Fig. 8, the density and strength of the test with basalt fibers are directly proportional to the added fibers and content, and the density of the specimens from small to large was 1.109 g/cm 3, 1.110 g/cm 3, 1.115 g/cm 3, and 1.118 g/cm 3; the specimens' compressive strength from small to large was 6.37, 6.48, 6.58, and …
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The average compressive strength of the control specimens and basalt fibre-reinforced concrete is shown in Fig. 8. An increase in compressive strength of BFRC1 was in the order of 20.85% and 26.80% as compared to control concrete at 7 days and 28 days, respectively.
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This study investigates the potential use of basalt powder as a sole precursor or blended in high amounts in slag-based alkali-activated systems. Eight alkali-activated mixes are prepared and comprehensively analyzed to determine the compressive strength development and microstructural characterization of basalt …
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Sim and Park [13] observed that the strength of the basalt fiber was about 30% and 60% of the strength of the carbon and high strength glass (S-glass) fiber, respectively. The density of basalt fiber has been reported between 2.59 and 2.8 g/cm 3 …
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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).
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Polypropylene fiber diameter 15micro meter = 42 grams (see fig. 4) A total of 6 (six) lightweight expanded polystyrene concrete mix are made for the work. 9 (nine) concrete cubes were made from each mix. The compressive strengths were testing on concrete cubes of dimensions 100mm x 100mm x 100mm. The cubes are molded in a metallic form.
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Contribute to changjiangsx/sbm development by creating an account on GitHub.
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Gao Ma, Cheng Wu, Hyeon-Jong Hwang, Jiulin Bai, Zhihu Zeng, Behavior of pre-damaged normal-strength concrete prisms repaired with basalt FRP sheets under axial compressive monotonic and repeated loading, Engineering Structures, 10.1016/j.engstruct.2022.114786, 269, (114786), (2022).
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In this study, the basalt rock extracted from the Kalgoorlie region of Western Australia is intensively studied on its compressive properties under both static and dynamic loads covering strain rate between 2.22 × 10 -6 /s to 408/s. The ultimate compressive strength and corresponding failure strain are quantified.
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Compared with the compressive strength 250 MPa of basalt at 25℃, the compressive strength σ c after heat treatment at 200 ℃ and 400 ℃ increases by 10.50% and 15.85%, respectively. The main reason is that the expansion of mineral particles causes the gradual closure of primary fractures, which increases the compactness of rocks and …
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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. ... Effect of basalt fibers length …
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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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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 …
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2 Relation between cdry and n. reached a constant value. Similarly, dry samples were prepared by oven drying the cores for 24 h and then monitoring its mass at every 4 h interval until it reached ...
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Uniaxial compressive strength ( ... Basalt 145 50 347 25 207 82 395 3 Diabase, dolerite 229 88 384 13 152 81 537 5 Hyperite - - - - 245 108 441 2 ... 89 31 350 14 - - - - ne-s Hornfels 111 74 668 3 - - - - Claystone 5 2 301 2 - - - - Phyllite 39 26 672 4 61 46 756 12 Chalk 1 21606 Marl, marlstone 17 2 133 9 - - - -
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Compressive test results showed basalt fiber could increase compressive strength at elevated temperatures. The optimal basalt fiber volume fraction was 0.8%, …
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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 ...
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The compressive strength of fly ash-based geopolymer matrix without basalt fibers added samples aged 28 days was 35 MPa which significantly increased 37% when the 10 wt%. basalt fibers were added. However, the addition of basalt fibers from 15 to 30 wt% has not shown a major improvement in compressive strength.
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Basalt is a volcanic igneous rock often found in East Lampung and has not been utilised. Basalt is chosen as a reinforcing filler because basalt has advantages such as wear resistance, corrosion resistance, resistance to chemical reactions, and high hardness. ... The highest compressive strength value of 28.331 kgf/mm2 was obtained from the ...
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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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The research of Dong et al. [26] showed that the effect of the BF content differs with changes in the replacement ratio; the compressive strength of the RC decreases with an increase in BF content when the replacement ratio is 50%; the BF content corresponding to the maximum compressive strength at 28d and 90d is 2 kg·m …
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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 …
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At a power of 2 kW, the dynamic tensile strength decreased by 11–17% with the increase of exposure time from 10 to 40 s. At a power of 3 kW, the dynamic tensile strength decreased by 20–31% from 10 to 40 s. At 4 kW power, the dynamic tensile strength was decreased by 26–38% compared with the untreated specimen.
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The test results showed a significant improvement in compressive strength, where 12 mm long fiber mixtures showed the highest compressive strength compared to …
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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 …
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The compressive strengths for the control specimen (BF0.0) and 0.3% fibre addition (BF0.3) are 32.51 MPa and 41.3 MPa respectively giving an increase of …
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Advances in Materials Science and Engineering T : Physical-mechanical behaviors of basalt ber. Density/(g/cm 3) Elastic modulus/GPa Elongation at break/% Tensile strength/MPa Length/mm Filament diameter/ m T : Physical behaviors of clay soil.
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Basalt Fibers Reinforced Concrete: Strength and Failure Modes. Materials 2022, 15, 7350. https:// doi/10.3390/ma15207350. Academic Editors: Tiejiong Lou …
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likely to affect the compressive strength of concrete [26]. Thus, using this EPS 's particle size does not s ignificantly affect compre ssive strength of PSC with equ al density from 1,400
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