Results 21 to 30 of about 279,026 (300)

Effect of Coarse Aggregate Sizes and Replacement Levels on the Strength of Palm Kernel Shell (PKS) Concrete [PDF]

open access: yes, 2013
The maximum coarse aggregate size used in concrete can impact on its strength. An investigation of the effect of coarse aggregate size and replacement level of granite with palm kernel shell (PKS) on the compressive and tensile strengths of PKS concrete ...
Babafemi, A. J, Olusola, K. O
core   +2 more sources

Numerical Modeling of Shock-Induced Damage for Granite under Dynamic Loading [PDF]

open access: yes, 2006
Johnson-Holmquist constitutive model for brittle materials, coupled with a crack softening model, is used to describe the deviatoric and tensile crack propagation beneath impact crater in granite.
Ahrens, T. J., Ai, H. A.
core   +1 more source

Structural features and emplacement of the late Svecofennian Perniö granite sheet in southern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1996
The 1840-1830 Ma old Perniö granite occupies the southern margin of the Sauvo-Perniö granite area located in the western part of the late Svecofennian granite-migmatite zone in southern Finland.
O. Selonen, C. Ehlers, A. Lindroos
doaj   +1 more source

AE Characteristics of Rockburst Tendency for Granite Influenced by Water Under Uniaxial Loading

open access: yesFrontiers in Earth Science, 2020
In deep mining, granite is stored with high energy duing to its structural integrity and brittleness. Rock bursts usually occur because stress changes and mining disturbances during mining, which seriously threaten safe production. Focusing on the factor
Yihan Zhang   +4 more
doaj   +1 more source

Experiment research of the influence of different cooling times on the drillability of high-temperature granite

open access: yes地质科技通报, 2023
To study the drillability and microscopic damage changes of granite after high temperature exposure and to study the influence of different cooling times on drillability after high temperature exposure, granite for high-temperature heat treatment was ...
Shuai Chen   +4 more
doaj   +1 more source

Granite outcrops as possible havens for biodiversity in arid land [PDF]

open access: yesBiodiversity Data Journal
Little is known about granite outcrops in arid regions. The current study sought to determine if granite outcrops generate wetter islands compared to their arid surroundings.
Mohammed Shakdofa   +2 more
doaj   +3 more sources

The Orivesi granite batholith, Southern Central Finland - characteristics and emplacement [PDF]

open access: yesBulletin of the Geological Society of Finland, 1996
The Orivesi granite batholith is situated in an E-W trending belt of granite intrusions along the southern margin of the Central Finland Granitoid Complex (CFGC).
O. Selonen, C. Ehlers
doaj   +1 more source

Comment on “Bilaterian Burrows and Grazing Behavior at >585 Million Years Ago” [PDF]

open access: yes, 2013
Pecoits et al. (Reports, 29 June 2012, p. 1693) describe bilaterian trace fossils and assign them an Ediacaran age based on the age of a granite interpreted as intrusive.
Beri, Angeles   +4 more
core   +2 more sources

Effect of weakening characteristics of mechanical properties of granite under the action of liquid nitrogen

open access: yesFrontiers in Ecology and Evolution, 2023
Liquid nitrogen fracturing and hot dry rock geothermal development are both emerging technologies in the field of energy. However, during the extraction of geothermal energy, it can cause the evolution of geological fractures, leading to the diffusion of
Linchao Wang   +7 more
doaj   +1 more source

Characterization of active layer water contents in the McMurdo Sound region, Antarctica [PDF]

open access: yes, 2010
The liquid soil water contents in the seasonally thawed layer (active layer) were characterized from seven soil climate monitoring sites - four coastal sites from south to north (Minna Bluff, Scott Base, Marble Point and Granite Harbour), and inland ...
Balks, Megan R.   +2 more
core   +2 more sources

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