The correlations between rock compressive strength, including static compressive strength σ cs and dynamic compressive strength σ cd, and water-weakening factors f w with …
The uniaxial compressive strength (UCS) has been used widely for drilling optimization and ROP prediction for a long time before some drill-bit experts realized that the use of UCS is …
The basalt of the study area can be described as "highly porous" and ignimbrite as "extremely porous" according to the classification by Anon (1979). The average UCS of basalt is determined as 26.65 MPa. For the ignimbrite, the lowest UCS is observed in the black ignimbrite as 22.39 MPa, and the highest value in the brown ignimbrite as 27.69 MPa.
Empirical Estimation of Uniaxial Compressive Strength of Rock: Database of Simple, Multiple, and Artificial Intelligence-Based Regressions Adeyemi Emman Aladejare, Emmanuel Damola Alofe, Moshood Onifade, Abiodun Ismail Lawal, Toochukwu Malachi Ozoji & Zong-Xian Zhang Geotechnical and Geological Engineering 39, 4427–4455 ( 2021) Cite this article
Empirical Estimation of Uniaxial Compressive Strength of Rock: Database of Simple, Multiple, and Artificial Intelligence-Based Regressions Adeyemi Emman Aladejare, Emmanuel …
Typical values of strength parameters for intact basalt at ambient temperature (20°C) and negligible confining pressure are Young's modulus, 78±19 GPa; Poisson's ratio, 0.25±0.05; …
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...
Generally, 100-300 Mpa or Megapascal is the compressive strength. Its tensile strength is10-30 Mpa, and its shear strength is 20-60 Mpa, which denotes that depending on the mineral …
• Compressive strength : ~20 - 40 MPa (~3000 - 6000 psi) Typical properties of Basalt rock are: • Density : 2630 +/- 140 kg/m3 (164 lb/ft3) • Compressive strength : ~144 - 292 MPa (20,885 –42,351 psi) Basalt rock can be 4-7 X stronger in compression than … The Use of Basalt-Hamadallah Al-Baijat
For basalt rocks, Malik et al. 12 investigated Deccan basalt rock and found the dynamic compressive strength between about 170 MPa and 260 MPa at a strain rate of about 400/s to 1600/s. Lindholm et al. 13 found a much lower dynamic strength of about 110 MPa to 125 MPa at a strain rate of about 600/s and 1100/s for Dresser basalt rock.
Generally, 100-300 Mpa or Megapascal is the compressive strength. Its tensile strength is10-30 Mpa, and its shear strength is 20-60 Mpa, which denotes that depending on the mineral makeup, basalt rocks fall in the category of a strong – very strong. Rock hardness property is common among the densest, fine-grained textured rocks, such as basalt.
Typical values of strength parameters for intact basalt at ambient temperature (20°C) and negligible confining pressure are Young's modulus, 78±19 GPa; Poisson's ratio, 0.25±0.05; tensile strength, −14.5±3.3 MPa; unconfined compressive strength, 266±98 MPa; and …
Granite Basalt Gneiss Schist Quart-zite Marble Lime-stone Sand-stone Shale Av. Co Max. Co Min. Co Range No. of samples 181.7 324.0 48.8 275.2 26 214.1 358.6 104.8 253.8 16 ... Rock Tensile Strength (MPa) Compressive Strength (MPa) Limestone Sandstone Sandstone Sandstone Mudstone Limestone Limestone Ironstone Sandstone 18.00 ± 0.62 (20) 19.17 ...
The results of determining the importance weights for the texture-based characteristics revealed that compressibility, roundness, and homogeneity with the values of 0.1995, 0.1754, and 0.1704 are...
The correlations between rock compressive strength, including static compressive strength σ cs and dynamic compressive strength σ cd, and water-weakening factors f w with strain rate are derived. The experimental AE waveform data is analyzed using a new methodology named statistical analysis of dominant frequency, from which we infer the intrinsic rock …
Representative values of strength parameters for intact basalt at ambient temperature (20°C)and negligible confining pressure are: Young's modulus, 73 GPa; Poisson's ratio, 0.25; tensile strength, −14 MPa; unconfined compressive strength, 262 MPa; fracture toughness, 1–3 MPa m ½ cohesion, 66 MPa; and coefficient of friction, 0.6.
They concluded that the estimation of compressive strength for basalt stone using rebound number and UPV in combined method was more reliable than using UPV or rebound number alone. Juneja and Endait ( 2017) …
The levels of the uniaxial compression strengths range from ca. 250 MPa (basalt), ca. 200 MPa (quartzite), ca. 160 MPa (gabbro), ca. 100 MPa (granodiorite), to ca. 45 MPa (sandstone), and comprises therewith a large, representative variation of strengths of hard rocks from medium strong to extremely strong rock (terms according to EN ISO 14689–1 ).
The uniaxial compressive strength (UCS) has been used widely for drilling optimization and ROP prediction for a long time before some drill-bit experts realized that the use of UCS is somewhat problematic because the apparent strength of the rock in the downhole is apparently different from Ref. UCS,,, . Some researchers discovered that the bit performance is greatly …
The basalt of the study area can be described as "highly porous" and ignimbrite as "extremely porous" according to the classification by Anon (1979). The average UCS of basalt …
In order to study the mechanism and effect of basalt fiber reinforced clay soil, a series of unconfined compressive strength tests conducted on clay soil reinforced with basalt fiber have been performed under the condition of optimum water content and maximum dry density. Both the content and length of basalt fiber are considered in this paper.
The levels of the uniaxial compression strengths range from ca. 250 MPa (basalt), ca. 200 MPa (quartzite), ca. 160 MPa (gabbro), ca. 100 MPa (granodiorite), to ca. 45 MPa …
The results of determining the importance weights for the texture-based characteristics revealed that compressibility, roundness, and homogeneity with the values of 0.1995, 0.1754, and 0.1704 are...
An Equation to Evaluate the Unconfined Compressive Strength of Rock from Splitting Tensile Strength Test Results Kedar C. Birid Received: 22 July 2015/Accepted: 12 September 2015/Published online: 22 September 2015 ... to be varied from 5 to 143 for the Basalt and the Tuff rocksamplesfromMumbai,Indiabasedonthetesting carried out for different ...
They concluded that the estimation of compressive strength for basalt stone using rebound number and UPV in combined method was more reliable than using UPV or rebound number alone. Juneja and Endait ( 2017) analyzed the relation between UPV and physical properties of vesicular basalt.
For basalt rocks, Malik et al. 12 investigated Deccan basalt rock and found the dynamic compressive strength between about 170 MPa and 260 MPa at a strain rate of about 400/s to 1600/s. Lindholm et al. 13 found a much lower dynamic strength of about 110 MPa to …