Tensile strength and fracture toughness, important parameters of the rock for engineering applications are difficult to measure. Thus this paper selected three kinds of granite samples (grain sizes = 1.01mm, 2.12mm …
A series of experiments were conducted to discuss the compressional wave velocity, triaxial strength, and permeability of granite cored from 3500 meters borehole …
Granite is an important structural and ornamental stone and because of its high compressive strength and durability, It is extensively used for massives structural works like bridge piers, sea and river walls, dams, and monumental buildings. Where excessive wear and abrasion is likely to occur.
In this method, the weakening effect of the laser on the compressive strength of the rock is a key factor of the technology. To reveal the weakening effect of the laser on the compressive strength of rocks, standard uniaxial compression tests were carried out on irradiated rocks using a uniaxial compression testing machine.
This paper examines prediction of uniaxial compressive strength of granitic materials from Turkey by index tests. • For prediction of uniaxial compressive strength, some non-linear multiple prediction tools are used. • The performances of the models are compared by considering various performance indices.
The Materials Specifications put forth minimum values for compressive strength for each stone type; for example, at least 1,800 psi (12.45 MPa) for marble and 19,000 psi (131 MPa) for granite. Compressive strength—or the load at which the stone fails—is usually much higher than the actual load the stone must resist.
In this investigation Granite Slurry (GS) was used as partial substitute in proportions varying from 5% to 20% by weight to cement in concrete and tested for compressive strength, tensile strength ...
The results show that the optimum artificial network developed in this research predicts the unconfined compressive strength of weak to very strong granites with less than ±20% deviation from the experimental data for 70% of the specimen and significantly outperforms a number of available models available in the literature. This paper reports the results of …
Uniaxial compressive strength ( c), E-modulus and the factor m i in the Hoek-Brown failure criterion for rock masses Average values from tests Tests of rocks world of intact rock samples -wide* Scandinavian rocks tested at SINTEF / NTNU *** Rating of the factor m i ** c E E c Number of tests c E E c Number
The average uniaxial compressive strength and elastic modulus of the intact granite are 140 MPa (this study) and 40 GPa (data from this study and the literature), respectively.
This paper presents the results of an experimental investigation on compressive strength of granite waste fly ash magnesium oxychloride cement (GFMOC).
Crushed granite is a common coarse aggregate used in high-strength concrete, and was employed to fabricate high-strength concretes with static uniaxial compressive strengths of ~60-110 MPa in a previous study by the authors [7,8].
Conclusively, the approximate average 15 % strength reduction is due to the increase of bulk compressibility and accumulated permanent strain damage resulting from cyclic loading, thus reducing compressive strength of weathered granite.
Liu et al. conducted compression experiments on heat-treated granite and found that the compressive strength of granite decreased with temperature; however, compressive strength increased slightly at 100 °C, and 600 °C was the critical temperature for the brittle–ductile transition of stress–strain curve.
To investigate the uniaxial compressive behavior of the granite under high strain rates compression, three groups of specimens with the same aspect ratio (0.5) …
Download Table | UNIAXIAL COMPRESSIVE STRENGTH OF THE GRANITE SAMPLES from publication: Investigation of Physical and Mechanical Properties of Selected Rock Types in Kogi State Using Hardness ...
Unfortunately, when compressive strength is included in the battery of tests for natural stone, the stone could be rejected since it doesn't meet the compression test requirements—even though the requirements are …
For this reason, fine-grained granite with high brittleness was specially selected. The granite specimens were collected from Hubei Province in Central China. The average bulk density, uniaxial compressive strength, tensile strength and thermal conductivity of granite are 2622 kg/m 3, 217.7 MPa, 11.6 MPa, 2.61W/mK, respectively.
Deep underground rock tunnels and caverns in mountainous areas are often subjected to the coupling impacts of high geo-stresses and high-ground temperature that can threaten the stability of rock masses. This paper presents an experimental study of strength, deformation, and failure as well as energy evolution characteristics for …
Common materials and average ultimate compression and tension strength.
Selecting mortar mix type N, O, S, or M for any masonry project is based on the performance characteristics of the mortar and the compressive strength.
This work examines the compressive strength of natural stones, as estimated by Uniaxial compressive strength tests (UCS) and respective non-destructive tests results (Schmidt Hammer Rebound test, SHR, or an Ultrasonic Pulse Velocity transmission, UPV). In practice, aiming to correlate the values of the UCS test with the results of the NDT …
In the same line, as plotted (Fig. 11, there is a coherent relationship between the compressive strength of the studied granite and their bulk densities exhibiting a negative correlation ...
The procedure of compressive strength measuring granite includes: Water absorption test of granite, dry density test of granite, and compressive strength test. Flexural strength : This …
Bulk density and Duroskop surface strength significantly decreased above 375 °C, while uniaxial compressive strength and modulus of elasticity dropped drastically at 750 °C after a linear...
A series of laboratory tests were carried out focusing on the fracture characteristics of granite under different stress conditions. The macroscopic mechanical characteristics of granite, such as nonlinear stress–strain curve, tension compression bi-modularity, crack initiation, and propagation laws during Brazil splitting, were analyzed …
Uniaxial compressive strength (UCS) has been considered a key mechanical parameter for the use of rock in engineering projects such as civil, mining, petroleum engineering, etc. In general, direct measurements of UCS are obtained from laboratory experiments with high-quality machined specimens, which are expensive and …
For the CaCl 2 solution, reduction of the ultimate compressive strength of granite depends on its ionic concentration. There is a large reduction (about 55%) with low and high ionic concentration, and a smaller reduction (about 32%) ...
Uniaxial compressive strength test. The uniaxial compressive strength of the rock specimens was tested using a SHT4106 microcomputer-controlled electro-hydraulic servo universal testing machine ...
PDF | On Apr 24, 2019, S. Ranjbar and others published Determination of Uniaxial Compressive Strength of Granite Rock Samples using Electrical Resistivity Measurement: NDT | Find, read and cite ...