The dynamic compressive strength of basalt fiber-reinforced concrete was bigger than that of ordinary concrete. The rapid development of modern society has increased the demand for high-performance geo-materials. As an advanced cementitious composite, fiber-reinforced concrete has attracted much attention and has been widely …
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 …
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 …
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 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.
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 ... After reaching their compressive strength at peak point, these specimens showed a …
The low strength values of the basalt powder-based mixes are attributed to the low concentration of reactive species and lack of Ca2+ ions in the medium, while the high compressive strength of the blended mixes is mainly associated with the formation of calcium aluminosilicate hydrate [C–(A)–S–H] or Na-enriched calcium sodium ...
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.
[22] showed that basalt powder/slag blends activated with NH and sodium silicate exhibit a reasonable setting time and moderate compressive strengths. Moreover, as the molar ratio increases, the setting time, workability, and compressive strength decrease. Considering the lack of studies on the use of waste basalt powder as a resource for …
Abstract. In this research, the authors have developed an algorithm for predicting the compressive strength and compressive stress–strain curve of Basalt …
The compressive strength is found to be maximum of 36.67 N/mm 2 for the concrete having 1% of basalt fibre content. The compressive strength of this mix designation is increased upto 11.45% than the conventional concrete. The maximum split tensile strength is 5.48 N/mm 2 for 1% basalt fibre content.
GAO Lei, HU Guo-hui, CHEN Yong-hui, et al. Triaxial tests clay reinforced by basalt fiber [J]. Chinese Journal of Geotechnical Engineering, 2017, 39(S1): 198–203. (in Chinese) Google Scholar GAO Lei, HU Guo-hui, XU Nan, et al. Experimental study on unconfined compressive strength of basalt fiber reinforced clay soil [J].
Marble presents differences concerning its density, or porosity, though it presents a wide range of compressive strength. Basalt is used all over the world, and because of its volcanic origin, it is an abundant source of basalt rock. Its structure is medium to fine-grained and compact.
This study experimentally investigated the mechanical properties of basalt-macro polypropylene hybrid fibre reinforced concrete. Three macro polypropylene fibre volume fractions (0.3%, 0.7% and 1%), two concrete compressive strengths (30 MPa and 60 MPa) and basalt fibre volume fraction 0.1%, were used to study their influences on …
Results show that the QS with small particle size can significantly increase the compressive strength of HPBFC. The HPBFC with small size of QS not only possesses the highest compressive strength at different curing stages, but also has the fastest increasing rate during the standard curing conditions. Export citation and abstract …
Meyyappan and Carmichael 5 used different volume fractions of basal fibers and observed that both split tensile strength and compressive strength increase in the presence of basalt fiber. However ...
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.
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 …
In this study, the effects of fiber content and fiber length on the unconfined compressive strength, failure morphology, and surface strain field of basalt …
Compressive strength. Triaxial compression test. 1. Introduction. Basalt fiber is a green non-polluting inorganic non-metallic material. Because of its strong …
Uniaxial compressive strength ( ... Basalt 145 50 347 25 207 82 395 3 (17) Diabase, dolerite 229 88 384 13 152 81 537 5 15.2 Hyperite - - - - 245 108 441 2 ure Graywacke 81 25 310 12 - - - - Sandstone 109 28 257 95 147 28 189 5 18.8 Siltstone 89 31 350 14 - - - - 9.6 ...
After 20 cycles, the loss rates of compressive strength in group C, BFRC1, BFRC2 and BFRC3 were 33.9%, 24.6%, 15.5% and 27.3%, respectively. The compressive strength loss rate of basalt fiber reinforced concrete in each group is lower than that of ordinary concrete under single-side salt-freezing–drying–wetting cycle.
The enhancing effect of the basalt fiber on the compressive strength of concrete is lower than that of tensile strength and flexural strength. Moreover, 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 compressive strength decreases significantly in the range of 400–600 °C, and the decrease range is mostly between 40% …
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 …
It also exhibits the highest increment of compressive strength of 4.48% and a dynamic MOE of 13.83%. New insights reveal that although the residual flexural …
From the results of the modal test, as shown in Table 7, and the compressive test, as presented in Table 4 and Figure 4, the compressive strength and dynamic MOE have shown a similar trend when the volume fraction of basalt fiber is increased continuously, with M 2 (0.25%) showing the highest compression and dynamic MOE value.
The presence of non-connected vesicles in extensive basalt flows in western Saudi Arabia greatly affects their engineering properties such as compressive strength, modulus of elasticity, Poisson's ratio and sonic velocities. In order to evaluate some of these properties, the density and/or the porosity of the material must be known.
1. Introduction. Concrete is widely used in almost all civil engineering fields such as roads, bridges and buildings because of abundant raw materials, ease of construction and high compressive strength [1].However, the low tensile strength and large shrinkage and deformation of ordinary concrete (OC) limit its further development …
The improving effect of basalt fiber is better on the splitting tensile strength of concrete than the compressive strength. Basalt fiber exerts the best effect on …
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 …
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% …
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. ... Basalt Fibers Dose vs. the …
