Effects of Rock Classes and Porosity on the Relation between Uniaxial Compressive Strength and Some Rock Properties for Carbonate Rocks

2011 ◽  
Vol 45 (1) ◽  
pp. 113-122 ◽  
Author(s):  
M. A. Rajabzadeh ◽  
Z. Moosavinasab ◽  
G. Rakhshandehroo
Keyword(s):  
Compressive Strength ◽  
Uniaxial Compressive Strength ◽  
Carbonate Rocks ◽  
Rock Properties

Effect of Rock Properties on Excavation-Loading Operation in Selected Quarries

2013 ◽  
Vol 824 ◽  
pp. 86-90 ◽  
Author(s):  
B. Adebayo ◽  
A.E. Aladejare
Keyword(s):  
Compressive Strength ◽  
Uniaxial Compressive Strength ◽  
Strong Relationship ◽  
Strength Properties ◽  
Biotite Granite ◽  
Point Load ◽  
Rock Properties ◽  
Filling Rate ◽  
Strength Parameters ◽  
Point Load Strength

The effect of rock properties on excavation-loading operation in quarries was investigated by conducting test on the mechanical properties of selected rocks. These rock samples were tested in the laboratory for specific gravity, point load strength, uniaxial compressive strength and mineral composition using weigh balance, point load tester, 1100kN compression machine and petrological microscope respectively. The filling rates of the front end loaders bucket were determined. The result obtained show that value of uniaxial compressive strength varied from 29.22 MPa-30.87 MPa. The bucket filling rate varied from 0.180-0.250 m3/s and 0.145-0.170 m3/s for porphyritic biotite granite and coarse biotite granite respectively. There is strong relationship between bucket filling rate and strength properties with values of R2 ranging from 0.9737 to 0.9981.Therefore strength parameters of the rock have effect on excavation loading operation in quarries.

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