Rock mass properties. Rock mass properties. Introduction. Reliable estimates of the strength and deformation characteristics of rock masses are. required for almost any …
Safe and abundant, basalt rock has long been known for its thermal properties, strength and durability. It is formed by decompression melting of the earth's mantle.
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 dynamic mechanical properties of basalt affected by microwave were investigated by performing dynamic compressive tests using the SHPB system. Meanwhile, the thermal damage of the treated basalt was characterized by ultrasonic non-destructive testing and nuclear magnetic resonance technology. The results show 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 …
It was noted that the compressive strength of reinforced concrete basalt fibre having length of 12 mm rises by 58%, and the compressive strength of reinforced concrete blended with basalt fibre having length of 24 mm increases by 25%.
ABSTRACT: Basalt was used as an ornamental stone in many historic and ancient cities in Jordan. Measuring the uniaxial compressive strength (UCS) and the …
The mechanical parameters including dynamic compressive strength and tensile strength of the rock are positively correlated with the strain rate [33] [34] [35] while the dynamic compressive ...
Uniaxial compressive strength (UCS) is the most used parameter to measure rock strength. However, restrictions in sampling large volume of material, the need of very large set of results and onsite characterisation of UCS non-destructively are requirements in many scientific and engineering investigations.
Basalt was used as an ornamental stone in any historic and ancient cities in Jordan. Measuring the uniaxial compressive strength (UCS) and the tangent Young's modulus (Et) in the laboratory requires premium quality specimens with special core dimensions. This research focuses on correlations both UCS and Et with Leeb Rebound …
Basalt was used as an ornamental stone in any historic and ancient cities in Jordan. Measuring the uniaxial compressive strength (UCS) and the tangent Young's modulus (Et) in the laboratory requires premium quality specimens with special core dimensions. This research focuses on correlations both UCS and Et with Leeb Rebound …
WEBThe uniaxial compressive strength (UCS) of rocks is a vital geomechanical parameter widely used for rock mass classification, stability analysis, …
The common tests used to evaluate rock strength include the uniaxial compressive strength test (UCS), Brazilian tensile strength (BTS) and flexural strength (FS).
Basalt was used as an ornamental stone in any historic and ancient cities in Jordan. Measuring the uniaxial compressive strength (UCS) and the tangent Young's modulus (Et) in the laboratory requires premium quality specimens with special core dimensions. This research focuses on correlations both UCS and Et with Leeb Rebound Hardness …
Empirical relationships for estimating Uniaxial Compressive Strength (UCS) of rock from other rock properties are numerous in literature. This is because the laboratory procedure for determination of UCS from compression tests is cumbersome, time consuming, and often considered expensive, especially for small to medium-sized …
Values of tensile and cohesive tr for ngth the basaltic rock mass are generally one to two rders of magnitude lower than corresponding values for intact basalt. The shear strength ofjoints appears to vary considerably from flow toflow.
The uniaxial compressive strength (UCS) of rocks is a vital geomechanical parameter widely used for rock mass classification, stability analysis, and …
To do this, we evaluated the mechanical properties of rocks at Pacaya Volcano (Guatemala) using a variety of laboratory experiments, including room temperature, high temperature, and cyclically-loaded uniaxial compressive strength tests (UCS) on as-collected and thermally treated rock samples.
To explore the mechanical properties and damage characteristics of basalt under high temperature and high pressure, triaxial compression tests are conducted on thermal damage rock samples, and the evolution process from progressive damage to macroscopic failure of rock is tracked and quantified by CT image reconstruction and …
Rock mass properties. Rock mass properties. Introduction. Reliable estimates of the strength and deformation characteristics of rock masses are. required for almost any form of analysis used for the design of slopes, foundations and. underground excavations. Hoek and Brown (1980a, 1980b) proposed a method for obtaining estimates of the strength ...
Basalt is an extrusive igneous rock derived from Lava and spread over different localities in Jordan. It can be used in industrial applications, and as construction materials. Before using basalt, it is essential to determine its dry density, porosity, uniaxial compressive strength, and Brazilian tensile strength. The testing procedure and …
The presence of normal compressive stress generally results in higher shear strength than tensile strength at the rock-concrete interface [37], [18]. The concentration of shear stress in the surrounding rock caused by underground excavation leads to radial deformation of the rock-concrete, which is similar to indirect tensile failure …
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 …
Low-speed compression tests show the heterogeneous properties of the Kalgoorlie basalt whose compressive strength is strongly influenced by the failure plane angle due to anisotropic properties, while strain rate is found to be insensitive to the ultimate uniaxial compressive strength in low-speed compression.
Please use this identifier to cite or link to this item: https://hdl.handle/11681/11425
The strongest rock in the world in compression is Diabase, which can stand up to 350 MPa. Diabase is a kind of fine-grained igneous rock. Close behind diabase in compressive strength come other fine-grained igneous rocks like Diorite, Gabbro, and Basalt. Interestingly, the one non-igneous rock in this super strong group is Quartzite.
In present study, basalt/PVA HF-ECC with superimposed basalt fiber content is proposed. Mechanical and micro-level related tests were conducted to investigate the effect of superimposed basalt fiber content after high-temperature exposure. Compressive test results showed basalt fiber could increase compressive strength at …
The mechanical properties of rock, especially the uniaxial compressive strength (UCS), the elastic modulus (E), and the Brazilian tensile strength (BTS) are critically important for rock engineering. Since standard laboratory tests have some limitations, various indirect methods have been developed for estimating these …
The ultimate compressive strength and corresponding failure strain are quantified. The test results show that Kalgoorlie basalt rock exhibits high sensitivity to strain rate effect on its compressive strength especially above 100/s and dynamic increment factor up to 2.3 at strain rate 403/s.
