Study of the uniaxial compressive strength of water …
Fundamental research on single-particle breaking and the uniaxial compressive strength (UCS) of carbonaceous mudstone aggregates at different water contents was carried out to investigate the relationship between the single-particle crushing strength and UCS. Based on elasticity theory and the superposition principle, a shape factor α was introduced to propose a …
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Uniaxial Strength
The uniaxial strength, also known as the unconfined compressive strength, of a rock may be regarded as the highest stress that a rock specimen can carry when a unidirectional stress is applied, normally in an axial direction to the ends of a cylindrical specimen.It represents the maximum load supported by a specimen during the test divided by the cross-sectional area of …
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Improvement of the resistance to carbon dioxide corrosion …
The compressive strength proportion of the cement mortar samples containing large quantities of natural diabase were lower than that of the Portland control cement at all tested ages up to 28 days ...
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compressive strength and the factor m in Hoek-Brown …
Normal variation of compressive strength and the factor m in Hoek-Brown failure criterion for some rocks (data from Hanssen, 1988; Hoek and Brown, 1980 and Hoek et al., 1992). Rock …
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(PDF) Strength of intact rock and rock masses
strength tests, 20 unconfined compressive strength tests, and 4 each triaxial strength tests at confining pressures of 1, 2, 5, 10, 20, 40 and 80 MPa. Thus there were 58 data points in all ...
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Characterization of physical–mechanical and radiological …
The Pustenik diabase rocks are very compact rocks of effusive magmatic origin with greyish-green colour. The diabase rock classified as "very hard" show good properties of compressive strength with an average value of 195 MPa, therefore, is a suitable material for construction applications requiring high durability.
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Microtomographic Study of Gabbro-Diabase Structural …
Transformations of the porous space structure for gabbro-diabase under compressive loads is studied. Quantitative assessment of respective ... the same samples for other types of analysis, in particular, for establishing their strength characteristics. A gabbro-diabase sample of cylindrical shape (L = d) without visible defects was
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Structural-temporal approach for dynamic strength …
Strength and deformation characteristics of gabbro-diabase were determined experimentally at high strain rates up to 103 s−1. Mechanical characteristics were found to be strongly depended on the strain rate. A uniform interpretation of the rate effects of fracture of the tested gabbro-diabase is given on the basis of structural-
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Mechanical and Durability Properties of Concrete with …
The compressive strength values of samples exposed to the effect of sulfate for 180 days were examined, and samples with basalt, diabase, and andesite added had compressive strength values an average of 33.35%, 32.52%, and 32.80% higher than that of the reference sample, respectively. This study proves the usability of basalt, diabase, and ...
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Porosity and compressive strength of test samples …
It's shown that SLM technology can produce test samples prototyping building units for construction use on the Moon from specially prepared powder compositions of gabbro-diabase simulating lunar regolith. Fabricated samples with characteristic dimensions of 5 × 6 × 7 mm 3 have rather high compressive strength of 17-20 MPa with porosity of 33-39 %.
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Porosity and compressive strength of test samples …
It's shown that SLM technology can produce test samples prototyping building units for construction use on the Moon from specially prepared powder compositions of gabbro-diabase simulating lunar regolith.Fabricated samples with characteristic dimensions of 5 × 6 × 7 mm 3 have rather high compressive strength of 17–20 MPa with porosity of 33–39 %.
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Effect of Discarded Geotextile Fiber on Mechanical
The UCS of cement-stabilized diabase waste residue at 7, 14, 28, and 90 d shows a slight increase followed by a subsequent decline in strength when the content of DGFs increases. Meanwhile, the compressive strength of DGF-reinforced cement-stabilized diabase waste residue steadily improves with the extension of the curing time.
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Rock mass properties
ξ uniaxial compressive strength of the intact rock pieces, ξ value of the Hoek-Brown constant for these intact rock pieces, and ξ value of the Geological Strength Index GSI for the rock mass. ... diabase, gneiss, granite, quartzite R5 ; Very: strong: 100 -250 4 -10 Specimen requires many blows of a geological : hammer to fracture it:
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The effect of water on the compressive strength of diabase
The compressive strength of water soaked diabase is found to be about 60% of that of diabase dried at temperatures greater than 190°C. Several solvents other than water failed to cause a decrease in the strength of diabase. This suggests that water is involved in a chemical reaction during the fracturing process, and that its effect is not ...
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Properties of Diabase | Physical | Thermal
The hardness of Diabase is 7 whereas its compressive strength is 225.00 N/mm 2. Streak is the color of rock when it is crushed or powdered. The streak of Diabase is black whereas its fracture is conchoidal. Luster of Diabase is the …
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Correlation Between Uniaxial Compressive Strength and Brazilian Tensile
4 Diabase Igneous 176.3 25.4 17.4 1.9. 3 Granite Igneous 146.5 47.6 12.9 4.7. ... [Show full abstract] properties included uniaxial compressive strength, tensile strength and modulus of elasticity ...
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STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES
Mean tensile strength and compressive strength for selected sedimentary rock types (after Johnson and Degraff, 1988). The behavior of intact rock in the post-peak dom ain is not a true rock property and is partially dependent on the stiffness of the loading system. A testing machine consists of an assembly of
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Diabase Mud-Based Geopolymer Paste: Formulation and Properties
The effect of diabase mud on the compressive strength of a geopolymer paste is. determined as shown in Figure 4. It was found that the quantity of diabase mud increases.
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The Strongest Rock in the World
Crowning a single type of rock as the strongest in the world is more complicated than it might seem, mostly because there are many different ways to define strength. What are you doing to the rock to test its strength? Are you squeezing it? Pulling it apart? What if you're trying to … See more
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Microtomographic Study of Gabbro-Diabase Structural …
Transformations of the porous space structure for gabbro-diabase under compressive loads is studied. Quantitative assessment of respective structural parameters for the pore space is ensured through the application of X-ray computer microtomography, enabling visualization of the internal three-dimensional structure of each sample and a detailed …
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Improvement of the resistance to carbon dioxide corrosion …
Korkmaz et al. studied the chemical composition, mineralogy, and mechanical activation of diabase on the characteristics of volcanic ash, as well as the hydration and compressive strength properties of diabase. The result showed that diabase was a suitable substitute for the new generation of cement mineral additives [20].
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Test: ACI Concrete Strength Testing Technician CP-19 (14)
Discard the test results when the fracture occurs in which of these instances: a) outside the middle third of the span length but by less than 5% of the span length. b) outside th
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Relationship between compressive strength and Young's
Download scientific diagram | Relationship between compressive strength and Young's from publication: The Influence of Concrete Composition on Young's Modulus | This paper presents a dynamic ...
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Diabase Mud-Based Geopolymer Paste: Formulation and …
Materials. Diabase mud (DM) is a silica-rich residue yielding from aggregate crushing and washing operations in quarries. This work focuses on identifying the geopolymerization potential of a diabase mud through characterization of its mineralogical composition, investigation of its reactivity, and assessment of the early compressive strengths of alkali activated mixtures …
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Physical and Mechanical Properties of Portland Cement
The objectives of this research were as follows: (1) quantify the compressive creep behavior of different UHPC-class materials; (2) assess the effects of strength, maturity, and loading age on ...
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Diabase Mud-Based Geopolymer Paste: Formulation and Properties …
When the value of Na 2 SiO 3 decreased, the compressive strength of diabase mud-based geopolymer paste was also found to decrease. The decline in the compressive strength of the specimens largely relies upon the chemical process controlling the geopolymerization . A few mixtures representing a diminished compressive strength since their ...
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Eco-efficient concretes, optimized by Alfred's packing model, …
The performed studies resulted in the conclusion that adding diabase dust significantly increased the tightness and density of concrete, which impacts the increase of compressive strength by 7, 21 ...
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The influence of aggregate type on the strength and …
Compressive strength of concrete has been accepted as the most important mechanical property of structural concrete. The relationship between concrete composition and compressive strength has long been a matter of interest for researchers [1]. ... for identical materials and similar mix proportions, using diabase and limestone aggregates ...
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Characterization of physical–mechanical and radiological …
The diabase rock classified as "very hard" show good properties of compressive strength with an average value of 195 MPa, therefore, is a suitable material for construction …
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