Basalt fiber (BF) stands out as the most intriguing among the natural fibers that may be utilized as reinforcement due to their characteristics. Numerous academics have conducted many tests on the strength, durability, temperature, and microstructure characteristics of concrete reinforced with BF and have found promising results.
Fiber reinforcement technology can significantly improve the mechanical properties of soil and has been increasingly applied in geotechnical engineering. Basalt fiber is a new kind of environment-friendly and high-performance soil reinforcement material, and the mechanical properties of basalt fiber-reinforced soil have become a …
In hydraulic structures, abrasion resistance can be a significant driver in concrete specification. Basalt micro-fibres represent a potentially sustainable construction product and have been shown to provide various benefits in concrete, however the implications for hydrodynamic abrasion resistance are to date unclear. This paper is the …
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 results indicate that basalt fibre and nano-silica contribute to the improvement of the interface transition zone performance and to ...
To determine the compressive strength (CS) and tensile strength (TS) of basalt fiber reinforced concrete (BFRC), this study will develop empirical models using …
The uniaxial compressive strength test is used to determine the maximum value of stress obtained before failure. The determination of this parameter was carried out on specimens with dimensions 7 × 7 × 7 cm along two orthogonal directions (side A–side C), in order to identify possible anisotropies which were not identified by the test of water absorption by …
strength values, ranging between 2 and 9 MPa, basalt powder/slag blend mixes exhibit a moderate compres-sive strength, i.e., 20 MPa at 28 days. Furthermore, sodium-silicate-activated basalt powder/slag blend mixes achieve high compressive strengths at early and further ages. The low strength values of the basalt
The use of basalt fibres to improve the hardened properties of concrete has increased in recent times. The incorporation of these fibres into concrete results in a change in the hardened state of concrete. However, these fibres also influence the corresponding fresh properties of concrete, specifically its workability. Therefore, it is critical to …
According to the pervious study, the performance improvement with the addition of basalt in normal strength concrete or high strength concrete are similar with each other . This shows that the optimal dosage of basalt fiber is 2% with the addition of metakaolin, ranging from 1% to 3% for the compression strength, modulus of elasticity, …
Hardness and Strength of Basalt. The physical properties of Basalt depend on its formation. Physical properties of rocks play an important role in determining its applications in various fields. 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 ...
The low tensile capacity of concrete often results in brittle failure without any warning. One way to cope with this issue is to add fibers and essentially improve the tensile strength (TS) behavior of concrete and offset its undesirable brittle failure. In recent investigations, basalt fibers (BFs), as compared to a variety of other kinds of fiber, have …
Overall, axial compressive strength for Pacaya basalt ranges widely from 12 to 174 MPa (Table 3), with the lower end falling into strength categories as low as …
Casting of concrete specimens. Four different proportion of basalt partially replacement by cement weight in concrete mix ranging from 0% up to 22.5% were conducted with a water to binder w/(C + Basalt) ratio of 0.53 for a design concrete cube (150mm × 150mm × 150 mm) compressive strength of 25 MPa.
Compressive test results showed basalt fiber could increase compressive strength at elevated temperatures. The optimal basalt fiber volume fraction was 0.8%, …
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 powder-based and …
The rock hardness of basalt is 6 on the Mohs scale, and can be seen through a combination of its compressive strength: 100-300 Mpa (Megapascal), its tensile strength: 10-30 Mpa, and its shear strength: 20-60 Mpa, which denotes that depending on the mineral makeup, basalt rocks fall in the strong – very strong category.
The results showed that the inflection point on the strength-erosion age curve for basalt fiber reinforced concrete appeared significantly later than that in ordinary concrete, indicating that basalt fiber can delay sulfate erosion and enhance concrete durability. Using the measured sulfate erosion depth, remaining compressive strength …
Compressive, T ensile strength and RMR v alues of foundation rocks, Karjan dam Fig.9. Pre and Post curtain grouting results of the Karjan dam spillway …
From the above, Basalt has the maximum compressive strength. Download Solution PDF. Share on Whatsapp Latest DSSSB JE Updates. Last updated on Jul 15, 2024 -> DSSSB J E Tier 2 Result has been released for the post of Junior Engineer (Electrical) (Post Code 802/22). The exam was conducted on 4th March 2024.
This study investigated the importance of applying explainable artificial intelligence (XAI) on different machine learning (ML) models developed to predict the strength characteristics of basalt ...
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 pore …
1. Introduction. Ultra-high performance concrete (UHPC) features high strength, outstanding ductility and superior durability compared with normal concrete (NC), which is contributed to its superb compact microstructure and the bridging effects of internal fibers [1, 2].Consequently, based on the ultra-high performance, UHPC is reasonably …
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 ...
To study the effects of basalt fibers (BFs), calcium sulfate whiskers (CSWs), and modified calcium sulfate whiskers (MCSWs) on the compressive strength and …
strength and point load strength of basalt M. Endait and A. Juneja* Although the mechanical and physical properties of many rocks have extensively been studied, little work is reported on basalt rock.
This work examines the compressive strength of natural stones, as estimated by Uniaxial compressive strength tests (UCS) and respective non-destructive tests results (Schmidt Hammer Rebound test, SHR, or an Ultrasonic Pulse Velocity transmission, UPV). In practice, aiming to correlate the values of the UCS test with the results of the NDT …
Basalt Fibers Dose vs. the Strength effectiveness (Data redrawn from (Algin and Ozen, 2018)). The effects of varying fibers lengths (3–25.4 mm) on the optimum dosage for splitting tensile strength are summarized in Table 4. The optimum BF content ranged between 0.1% and 0.5% for all the studies, expect one, while a maximum …
The aim of this study is to understand the strength behaviour and fragment size of rocks during indirect, quasi-static and dynamic tensile tests. Four rocks with different lithological characteristics, namely: basalt, granite, sandstone, and marble were selected for this study. Brazilian disc experiments were performed over a range of strain rates …
Aggregates are necessary materials for the construction industry. Owing to their favourable properties, andesites are frequently used rock materials; hence, the investigation of their mechanical and aggregate properties has great significance. This paper introduces the analyses of 13 Hungarian andesite lithotypes. The samples were …
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 …