Fiber reinforced concrete as a kind of complex material of composite reinforced, which has received wide attention in the material field and engineering. In this experiment, the volume of basalt fiber were 0,0.1%, 0.15%, 0.20%, in this cases of, two kinds of different ways of curing fiber influenced axial compressive strength of basalt fiber recycled concrete blocks that …
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 its own unique pore sizes, …
Extensive studies have been conducted to investigate the compressive behavior of FRP-confined NC considering certain effect parameters, such as the shape of the transverse cross-section [22], type of FRP [23], thickness of FRP [24], strength of concrete [25], [26], and size of the member [27].
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The compressive strength, splitting tensile strength, flexural strength and dynamic compression performance of BF/PPF-reinforced HSC (C60) were studied.
In general, compared to intact rock, a rock mass has reduced tensile strength (almost zero), and reduced shear strength especially along discontinuity planes. Furthermore, if a rock mass is …
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Basalt fiber23−26 is a new type of green inorganic fiber with good chemical stability, high compressive strength, corrosion resistance, and high modulus of elasticity.
The test results show that both the unconfined compressive strength (UCS) and splitting tensile strength (STS) at a given basalt fiber content increase significantly with increasing calcite content, whereas the axial strain of the peak failure state decreases with increasing calcite content.
The H–B strength criterion is a nonlinear empirical relationship proposed by Hoek and Brown in 1980 based on the strength data of a large number of rocks [75, 76], whose expression is (16) σ 1 = σ 3 + σ c (m σ 3 σ c + s) n where σ c is the uniaxial compressive strength of the material, MPa; m is the parameter related to the material ...
The compressive strength prediction of Basalt Fiber Reinforced Concrete (BFRC) is a complex task influenced by numerous factors. For traditional empirical formula methods, difficulties such as the limited number of experiments and the time-intensive nature of the process may hinder the accurate prediction of the compressive strength.
Summary This paper investigated the dynamic behavior of basalt fiber reinforced concrete (BFRC) after elevated temperatures by using a 100-mm-diameter split Hopkinson pressure bar apparatus. ... Dynamic compressive behavior of basalt fiber reinforced concrete after exposure to elevated temperatures. Weibo Ren, ... Basalt fiber is effective in ...
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, …
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Zhuang et al. [26] initially developed basalt/PVA HF-ECC with superimposed amount of basalt fiber, whereby strengths showed evident enhancements at ambient temperature. Compressive, first-cracking and ultimate tensile strength constantly increased up to 45.35 MPa, 6.62 MPa and 7.85 MPa as basalt fiber content reached 1.2%, higher than …
between strain hardening and softening is called the unconfined compressive strength of the rock and is denoted as Co or qu. Failure takes place continuously from C to D during which ... Granite Basalt Gneiss Schist Quart-zite Marble Lime-stone Sand-stone Shale Av. Co Max. Co Min. Co Range No. of samples 181.7 324.0 48.8 275.2 26 214.1 358.6 ...
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 ...
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.
The cube compressive strength and axial compressive strength of the specimens decreased with the increase of temperature. With the same replacement ratio and fiber dosage, increasing the temperature from 300 °C to 600 °C, the decrease in cube compressive strength and axial compressive strength was the most significant, which was between 36.4 ...
Experimental Study On Concrete Compressive Strength Made With Crush Basalt As Fine Aggregate,IJAR - Indian Journal of Applied Research(IJAR) IJAR is a double reviewed monthly print journal that accepts research works. 36572+ Manuscript submission, 9855+ Research Paper Published, 100+ Articles from over 100 Countries
The split tensile strength of basalt fiber-reinforced coral aggregate concrete (BFRCAC-SS) is a critical parameter in structural design because it directly affects the load-bearing capacity and durability of BFRCAC structures. BFRCAC-SS is influenced by multiple variables, and the accuracy and generalization capability of traditional explicit models for …
26 SHAP algorithm, an interpretive analysis of the input parameters of the XGBoost model was ... 70 posed a challenge to the empirical models for predicting the compressive strength of basalt ...
The effect of pre-damaged levels (i.e., first preloaded to + 100, −90, and −80 % of the axial compressive strength (f' co) of the plain concrete prisms) and the number of BFRP composites (i.e., 1-, 2-, 4-, and 6-layer) on the compressive strength, deformation capacity, and initial elastic modulus of BFRP-repaired concrete was investigated ...
To understand the variation of residual compressive strength of RAC under fatigue load, ... [25], [26], [27]. ... In comparison to the control group, the maximum increase in fatigue limit strength due to basalt fiber incorporation reaches 11.36 %. Notably, when the basalt fiber length is extended to 12 mm, the enhancement effect on the fatigue ...
This paper investigated the dynamic behavior of basalt fiber reinforced concrete (BFRC) after elevated temperatures by using a 100-mm-diameter split Hopkinson pressure bar apparatus. ... Dynamic compressive behavior of basalt fiber reinforced concrete after exposure to elevated temperatures. Weibo Ren, ... Basalt fiber is effective in improving ...
The compressive strength prediction of Basalt Fiber Reinforced Concrete (BFRC) is a complex task influenced by numerous factors. For traditional empirical formula methods, difficulties such as the ...
The 15 wt% basalt fibers added to geopolymer composites aged 7 days has shown the highest compressive strength at 47 MPa with the Ca/Si ratio=1.3 (Fig. 10), whereas the 10 wt% basalt fibers added to geopolymer composites at 28 days aged has shown the highest compressive strength of 48 MPa with the Ca/Si ratio=0.97 (Fig.11). It could be drawn ...
Download scientific diagram | 21 Data of 48-basalt rock uniaxial compressive strength (MPa) from publication: State based philosophy: the final destination of human knowledge Chapter Five ...
After the sulfate erosion test, the compressive strength of OC and BFRC was obtained through the standard compressive strength test according to the Standard Test Method for Mechanical Properties of Ordinary Concrete (GB/T 50081–2021) [23]. A total of 160 specimens were tested by YAW-300 electro-hydraulic servo pressure test machine.
42.26: 0.75: Al 2 O 3: 4.87: 24.4: 13.75: 1: SiO 2: 20.62: 58.2: 34.24: 92: MgO: ... 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 ...
In rock engineering, the shear strength of the basalt-concrete bonding interface is a key factor affecting the shear performance of hydroelectric dam foundations, embedded rock piles and rock bolts. In this study, 30 sets of
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 …
