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Regarding the data from the literature in Table 1 and Table 2, special emphasis is given to the mechanical properties values and correlations obtained by Soares et al. (), since the study concerns a number of basalt samples from CVL (Moita da Ladra Quarry).Further studies have been carried out regarding the same magmatic nature of the basalts from the CVL, i.e., …
VELOCITIES, DENSITIES, AND ELASTIC CONSTANTS OF BASALT AND TRACHYTIC TUFF, DSDP LEG 39 R.L. Carlson and N.I. Christensen, Department of Geological Sciences, University of Washington, Seattle, Washington ... Poisson's ratio (σ), the bulk modulus (K), the shear modulus (µ), Young's modulus (E), and Lamé's con-stant (λ) calculated from ...
First of all, (kg/cm^2)*10^5 is not the correct unit for Young's modulus, which should be in units of pressure. Pressure is a force over an area, so N*m^-2 or in SI units kg*m^-1*s^-2. Maybe what you were going for was gigapascals, which would be (N/cm^2)*10^5, although a better way to write that would just be (N/m^2)*10^9.
Mineral Bulk Modulus Input: Determine the mineral bulk modulus K m from standard mineral elasticity charts (if the matrix is composed of a single mineral), ... between magma and the surrounding mantle rocks controls the magma distribution in the interiors. For example, alkali basalt magma is less dense than asthenosphere rocks, but it is denser ...
The correlations among phase composition, acidity modulus, ratio of non-bridging oxygens to tetrahedral cations, tensile strength, and elastic modulus of the BCFs from the 14 different basalt ...
The equivalent bulk modulus, equivalent shear modulus, and equivalent density of porous basalt saturated with liquid water, water ice, and gaseous CO 2 (the most abundant molecule in the present-day Martian atmosphere; Owen et al., 1977) were determined for pore aspect ratios from 0.1 to 1 (since the aspect ratio of pores within basalt on Earth can vary …
The relation between Dynamic bulk modulus (Kdyn) and Static bulk modulus (Kstat) gives a strong equation of Basalt Kdyn = 1.5637x + 0. 9536. Figure 6 reveals a fairly appropriate relationship between Kdyn and Kstat with R2 = 0.74 for Basalt and R2 =0.44 for Granite.
This new technique allow us to investigate the effect of frequency dependence on the elastic properties (bulk modulus) of a basalt rock. …
where K is called the bulk modulus. Note that G and K are related to E and < as follows 2.2 Dynamic Elastic Constants The Young's modulus, Poisson's ratio and shear modulus can be determined by dynamic methods. Dynamic elastic properties are obtained by rapid application of stress to a rock specimen.
However, when samples are water saturated, the bulk modulus of the rock is frequency dependent. Modeling with Gassmann's equations predicts the measured saturated rock bulk modulus for all fluids for frequencies below 20 Hz but underpredicts the water-saturated basalt bulk modulus for frequencies greater than 20 Hz.
shear modulus (G ref) is unchanged by the pore fluids, which in our case are represented by air and water. The bulk modulus of the pore space is a weighted harmonic mean of the bulk moduli of the pore constituents (Gassmann, 1951). When the two pore constituents are water and air, the bulk modulus of the pore space fluids (K fl) can be ...
Explore a comprehensive list of basalt properties in both SI and US customary units at normal temperature and pressure (NTP). ... Young's Modulus (E) 60 - 100 GPa: Tensile Strength: 10 - 30 MPa: Compressive Strength: 110 - 340 MPa: Modulus of Rupture: 14 - 55 MPa: Hardness (Mohs) 4.0 - 6.5: Thermal Properties
where K is called the bulk modulus. Note that G and K are related to E and < as follows 2.2 Dynamic Elastic Constants The Young's modulus, Poisson's ratio and shear modulus can be …
In addition, the density of basalt is about 1.3 to 2.75 g/cm 3, the tensile strength is between 2600 to 4840 MPa, and the range of the elastic modulus is 80–115 GPa . Although basalt fiber can be relatively more expensive than some other fibers, it is cheaper than carbon fiber and S-glass fiber.
Table 2 shows the bulk modulus of the studied basalt glass, tahilite (Bridgman 1925), nepheline glass 0.25Na 2 O±0.25Al 2 O 3 ±0.5SiO 2 (Halleck et al. 1986), glass of composition 0.3Na 2 O±0 ...
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 mass appear to vary within a factor of about …
The classical theory of poroelasticity for an isotropic medium involves the skeletal deformability properties characterized by the skeletal or effective shear modulus ( (G^ {eff})), …
The structural relaxation of the bulk fibre is promoted by the high drawing stress during the production ... In the present work, an increase in Young's modulus of basalt fibres has been already highlighted, which corroborates the theory that, indeed, heat treatment induces structural changes in basalt fibres, as observed in glass fibres ...
In C1 basalt the Young's modulus reduced by 22 %, in C2 basalt it reduced by 43 % and in C3 basalt it reduced by 92 %. ... Shear modulus and Bulk modulus. Shear and bulk modulus are the two elastic moduli that indicate the deformational characteristics of any material under shear stress and hydrostatic pressure, respectively. They indicate a ...
The resilient modulus values of basalt aggregates were determined in range of 98–390 mPa. As the confining pressure increased, the resilient modulus also increased. ... One of the most commonly used M r estimation model is the Bulk stress model (Eq. 2) known as the K-θ model [39], [40].
In the current study, a method is developed to evaluate the changes in porosity and bulk modulus with depth by using in situ measurements of permeability, which can be easily obtained by employing ...
Modeling with Gassmann's equations predicts the measured saturated rock bulk modulus for all fluids for frequencies below 20 Hz but underpredicts the water-saturated basalt bulk modulus...
The bulk modulus for the water-saturated sample is computed from the measured CO. 2-saturated bulk modulus using Gassmann's relation, and this bulk modulus estimate is converted back into a P-wave velocity. Using the measured dry bulk modulus to estimate the Gassmann water-saturated bulk modulus gives similar results as when using the ...
By using the in situ permeability data of a basalt rock mass with shears, the change in permeability of the shear is estimated, which has been utilized to calculate the porosity and bulk modulus at different depths. The results clearly show that the porosity decreases with depth while the bulk modulus increases with depth.
Corkum, 2002). A related modification for estimating the deformation modulus of rock masses was made by Hoek and Diederichs (2006). This chapter presents the most recent version of the Hoek-Brown criterion in a form that has been found practical in the field and that appears to provide the most reliable set of
(PMT), or Dilatometer (DMT) should be considered for evaluating the elastic modulus of the soil strata. Typical elastic modulus values of predominately granular materials are shown in Table 3. Table 3: Typical elastic modulus values for granular s oil (modified after Sabatini, 2002) . soil type range of equivalent elastic modulus ksf / (kPa)
The elastic modulus of basalt is a significant engineering parameter required for many projects. Therefore, a total of 137 datasets of basalts from Digor-Kilittasi, Turkey, were …
Bulk modulus is defined as the proportion of volumetric stress related to the volumetric strain of specified material while the material deformation is within the elastic limit. In simpler words, the bulk modulus is nothing but a numerical constant that is used to measure and describe the elastic properties of a solid or fluid when ...
The strength performance of basalt fibers improves, compared to glass fibers, with increasing temperature. The elastic modulus of basalt fibers is comparable to that of glass fibers, higher compared to E-type but lower compared to S-type. Elongation at break values is higher compared to carbon fiber but lower compared to glass one (Table 1.1).
the velocity measurements and thus are bulk densities. The ratio of compressional to shear velocity (K, / V s), Poisson's ratio (σ), the bulk modulus (K), the shear modulus (µ), Young's …
