Dynamic Split Tensile Strength of Basalt, Granite, Marble
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 …
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Experimental study on the effect of basalt fiber reinforced …
When two layers of BF-R-EMS with a diameter of 8–9 mm are added to the concrete and 12 mm basalt fibers with a content of 2% are added to the matrix, the maximum compressive strength was increased by 7.9% compared to the unadulterated basalt fibers, and the maximum compressive strength was increased by 443% …
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Effects of microwave radiation on dynamic compressive properties of basalt
The ultrasonic detection tests show that both increased power levels and prolonged exposure time can cause severer damage to the basalt. (2) As the microwave power level and exposure time increase, the dynamic compressive strength of the treated basalt continues to decrease, while the peak strain continues to increase.
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Alkali-activated basalt powder/slag systems: compressive strength …
The results show that while basalt powder-based mixes have low compressive strength values, ranging between 2 and 9 MPa, basalt powder/slag blend mixes exhibit a moderate compressive strength, i.e., 20 MPa at 28 days. ... The low strength values of the basalt powder-based mixes are attributed to the low …
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The Effect of Basalt Aggregates and Mineral Admixtures on …
Concrete compressive strength values, mean value and strength were calculated by crushing three samples, each of which had different designs, through pressure tests run with a hydraulic system on which the load applied was set at 0.6 N/mm 2 /sec. Comparative compression values are given in Figure 5 and Figure 6.
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Bonded particle modeling of grain size effect on tensile and
1. Introduction. Compressive and tensile strengths are fundamental physical properties which are required for the design of rock structures. Numerous studies have found that several variables, including mineral composition, porosity, density, specimen size, grain (particle) size, and natural discontinuities, influence the mechanical …
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Basalt Rock
Generally, 100-300 Mpa or Megapascal is the compressive strength. Its tensile strength is10-30 Mpa, and its shear strength is 20-60 Mpa, which denotes that depending on the mineral makeup, basalt rocks fall in the category of a strong – very strong. Rock hardness property is common among the densest, fine-grained textured …
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Experimental Study of the Dynamic Compressive and …
45 dry-wet cycles and found that the compressive strength of AAM was increased by 23.9% while that of ordinary Portland cement mortar was decreased from 55 to 18 MPa (Luga, 2015).
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Compressive and Split Tensile Strength of Chopped Basalt …
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 ...
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Mechanical properties of basalt fiber reinforced magnesium …
This would imply that the optimum compressive strength could be obtained from MPC composites with an intermediate fiber length. Meanwhile, Fig. 3 compares the compressive strength of matrices containing basalt and glass fibers. At a constant fiber content, the 7-day compressive strength value of GF20 composites was …
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STUDY OF MAKING POLYESTER RESIN MATRIX …
highest compressive strength value of 28.331 kgf/mm2 was obtained from the various parameters of 270 mesh-20% polyester- 1/20 catalyst and 270 mesh-25% polyester-1/30 catalyst.
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Numerical Study for Compressive Strength of Basalt …
Numerical Study for Compressive Strength of Basalt Composite Sandwich Infill Panel. Abstract—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 ...
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AComparisonAmongSomeNon …
uniaxial compressive strength and tangent Young's modulus of basalt, which was used as an ornamental stone in several ... Basalt samples were collected in 72 different loca-
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(PDF) Unconfined Compressive and Splitting …
The strength properties of basalt fiber-reinforced biocemented (BFRB) sand specimens with various calcite contents and fiber contents are investigated through a series of unconfined …
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Mechanical Property Tests and Strength Formulas of Basalt …
In order to investigate the influence of basalt fibers (BFs) on the mechanical performance of recycled aggregate concrete (RAC), some groups of RAC specimens were first tested involving different types of fibers such as carbon fibers, steel fibers, polypropylene fibers and hybrid fibers. The main four indices for the investigation …
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Influence of different mixing methods on the axial compressive strength …
Download Citation | On Aug 1, 2016, Ruijin Guo and others published Influence of different mixing methods on the axial compressive strength of basalt fiber recycled concrete | Find, read and cite ...
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A review of test methods for uniaxial compressive strength …
The uniaxial compressive strength (UCS) of rocks is a vital geomechanical parameter widely used for rock mass classification, stability analysis, and engineering design in rock engineering. Various UCS testing methods and apparatuses have been proposed over the past few decades. The objective of the present study is to summarize …
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Experimental Study on Unconfined Compressive …
ResearchArticle Experimental Study on Unconfined Compressive Strength of Basalt Fiber Reinforced Clay Soil LeiGao,GuohuiHu,NanXu,JunyiFu,ChaoXiang,andChenYang
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Compressive strength analysis and microscopic …
Adding basalt fibers into the nano-CaCO3 reinforced concrete may further enhance the compressive, split tensile, and flexural strengths of the concrete; however, the higher content of basalt fiber ...
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Influence of basalt micro-fibres on the abrasion resistance
Basalt micro-fibre in doses of up to 3 kg/m 3 does not have a significant effect on the compressive and tensile splitting strengths, as well as modulus of elasticity of concrete. This suggests that basalt micro-fibre effects on concrete mechanical properties is consistent with that on abrasion resistance.
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Experimental Study on Mechanical Properties of Concrete
When compared to the average compressive strength of control specimens, the variation in average compressive strength and split tensile strength containing basalt fibers was found to be 4%, and it improved strain capacity from 4 to 12% (Ayub et al. 2014). Concrete slump values are reduced as fiber lengths and fiber volume …
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Compressive strength prediction of basalt fiber reinforced …
First, the compressive strength tests of BFRC under different stress states were performed at fiber volume fractions of 0.2%, 0.4%, 0.6% and fiber lengths of 6 mm, 12 mm and 18 mm to obtain stress ...
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Experimental investigation on compressive strength and …
Test results indicated that hybrid fibers can effectively improve the compressive strength of concrete; that the maximum increases in compressive strength of C30, C40, and C50 concrete were 9.18%, 5.06%, and 7.13%, respectively; and that the effect of basalt fiber on compressive strength was greater than that of polypropylene …
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Experimental study of compressive strength of basalt fiber …
The compressive strength test was proceeded of different concrete test block. The block contained three strength grade C20, C25 and C30, two replacement ratio 50% and 70%, three fiber content 1.0 ...
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Enhancing frost resistance and durability of self-compacting …
The compressive strength values range between 23 and 41 MPa. According to Table 5, the addition of basalt fiber improves the compressive strength of SCC mixes. The SCC mixes with a fiber volume fraction of 0.3% (SCCBF0.3%) exhibit the highest compressive strength when basalt fiber is included.
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Forecasting compressive strength of concrete with basalt …
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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Flexural Behavior and Prediction Model of Basalt Fiber
The flexural behavior of basalt fiber (BF)/polypropylene fiber (PF)-reinforced concrete (BPRC) was investigated. When the content of BF and PF is 0.1%, the addition of fibers increases the compressive strength of concrete. A BF content of 0.1% has the most obvious effect on improving the compressive strength, but a hybrid fiber content of …
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Mechanical relationship between compressive strength and …
Experimental research also shows that with a proper proportion of basalt fiber, the deterioration of splitting tensile strength of concrete soaking in 5% sulfate solution was constrained[18], [19]. Moreover, basalt fiber effectively inhibited the strength degradation of the aqueduct during the dry-wet cycle experiments[20].
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Experimental Study of the Dynamic Compressive and Tensile Strengths …
The positive effect of basalt fiber reinforcement on the dynamic compressive strength of AAC was studied (Li and Xu, 2009), where the strain rate achieved in the tests were limited to 100 s −1. However, the contribution of basalt fiber to the dynamic tensile strength of AAC has not yet been studied.
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Characterization of Compressive Strength of Epoxy Basalt
Composite materials are emerging as an alternative material to the machine tool structure. This work presents the study of compressive strength of composite material epoxy basalt. The epoxy content in the mixture is varied between 10 to 20% in weight. A combination with 15% epoxy resin and 85% aggregates of basalt by weight has given the compressive …
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