Weathered rock seam developed at the contact of basalt flows in the foundation of Karjan dam [14] ... compressive strength (100-300 MPa) but relatively . lower tensile str ength ...
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 …
The ultimate compressive strength and corresponding failure strain are quantified. The test results show that Kalgoorlie basalt rock exhibits high sensitivity to …
In this study, 31 empirical equations are summarized that relate unconfined compressive strength and internal friction angle of sedimentary rocks (sandstone, shale, and limestone and dolomite) to physical properties (such as velocity, modulus, and porosity).
Basalt fiber is obtained after extrusion from basalt-based molten igneous volcanic rock, ... Lopresto et al. [13] investigated and compared the compressive strength, Young's modulus and flexural behavior of basalt fiber reinforced plastics or polymers (BFRP) with glass fiber reinforced plastics ...
Compared with the compressive strength 250 MPa of basalt at 25℃, the compressive strength σ c after heat treatment at 200 ℃ and 400 ℃ increases by …
fracture, 0-c is the unconfined compressive strength of intact basalt, and m i and s are empirical parameters that reflect the degree of block interlocking and fracturing of the rock mass.
The compressive strength increases with basalt fiber content and curing time, and reaches the peak at the fiber content of 0.2%, followed by a reduction due to the formation of weak zone at higher ...
This paper provides a comprehensive review of the geotechnical properties of basalt rocks, including their origin, mineralogy, physical characteristics, and …
To do this, we evaluated the physical (porosity, permeability) and mechanical (strength) properties of basaltic rocks at Pacaya Volcano (Guatemala) through a …
Uniaxial compressive strength (UCS) is a key physical test relevant to iron ore crusher design and rock geomechanics for mining. Tests are typically performed on intact lengths of NQ, HQ, or PQ diamond drill core and record the …
In this study, the Back Propagation-Artificial Neural Network (BP-ANN) approach was utilized to predict the USC of Basalt Rock. Two ANN models were developed; one using the physical properties of rocks and the other one using the mechanical properties of rocks. ... Mishra DAD, Basu A (2013) Estimation of uniaxial …
The compressive strength is commonly used for measuring the quality of concrete. It can be defined as the ability of a material to resist the load and reducing the size of the material. Typically, concrete has high …
is the uniaxial compressive strength of the intact rock pieces. a ci ... Fresh basalt, chert, diabase, gneiss, granite, quartzite R5 ; Very: strong: 100 -250 4 -10 Specimen requires many blows of a geological : hammer to fracture it: …
The uniaxial compressive strength (UCS) of rocks is a vital geomechanical parameter widely used for rock mass classification, stability analysis, and …
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 ...
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.
The aim of this paper is to estimate the uniaxial compressive strength (UCS) of rocks with different characteristics by using genetic expression programming (GEP). For this purpose, five different types of rocks including basalt and ignimbrite (black, yellow, gray, brown) were prepared.
Dynamic compressive properties of Kalgoorlie basalt rock (PDF) Dynamic compressive properties of Kalgoorlie basalt rock | Phil Dight - Academia.edu Academia.edu no longer supports Internet Explorer.
Corresponding values for a basaltic rock mass that incorporate the weakening effects of scale are deformation modulus, 10–40 GPa; Poisson's ratio, 0.3; tensile strength, −0.1 …
To do this, we evaluated the physical (porosity, permeability) and mechanical (strength) properties of basaltic rocks at Pacaya Volcano (Guatemala) through a variety of laboratory experiments, including: room temperature, high temperature (935°C), and cyclically-loaded uniaxial compressive strength tests on as-collected and thermally …
The correlations between rock compressive strength, including static compressive strength σcs and dynamic compressive strength σcd, and water-weakening factors fw with strain rate are derived.
Fig. 5 shows, the 7 days compressive strength is having almost 55% to 64% of 28 days compressive strength for the basalt fibre content 0% to 3%. This same kind of observation is seen for split tensile strength of basalt fibre reinforced concrete.
CALCULATION OF SAFE BEARING CAPACITY BASED ON POINT LOAD VALUES & UNIAXIAL COMPRESSIVE STRENGTH & THEIR RELATIONSHIP ... sample from different location of the basalt rock have varied values of ...
The hardness of Basalt is 6 whereas its compressive strength is 37.40 N/mm 2. Streak is the color of rock when it is crushed or powdered. Streak is the color of rock when it is crushed or powdered. The streak of Basalt is white to …
The following information is obtained during each test to study mechanical properties of basalt specimens at different inclination angles: (1) rock peak strength and the rock elastic modulus; (2) the rock failure pattern; (3) …
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 physical and static mechanical properties of compact basalt, e.g., density, specific gravity, static compressive strength and elastic modulus values are also determined. Petrological studies of compact basalt are …
Among them, compressive strength is the most important reference index in the mechanical properties of concrete, which significantly impacts the safe use of concrete. Therefore, the accurate and rapid prediction of the compressive strength of basalt fiber concrete (BFRC) has essential application value in practical engineering applications.
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 …
New correlations between uniaxial compressive strength and point load strength of basalt M. Endait and A. Juneja* Although the mechanical and physical properties of many rocks have extensively ...