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Keywords: compressive strength
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1113
... have varied mineralogy, the volume fraction of gravel (Vg), the median grain size (D), and the compressive strength. Rock drillability is measured under the combined pressure conditions by Rollow's micro-bit method. Through the experiment, the influence of different components on the rock drillability...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1663
... cement + 35% by weight of cement (BWOC) of silica flour. The second slurry composed of class G cement with the optimum concentrations of granite (40% BWOC). The results showed that, granite waste can take the role of silica flour in well cementing. Using granite waste increased the compressive strength...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1666
.... Two cement formulations (with and without perlite particles) were prepared under high temperature and high pressure. The impacts of PP on the properties of well cement such as density variation, viscosity, gel strength, compressive strength, Young's modulus and permeability were examined. The results...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1855
... mechanics volumetric block proportion reservoir characterization upstream oil & gas cohesion gravel block gravel layer conglomerate mechanical properties bz block compressive strength matrix reservoir geomechanics strength vbp internal friction angle shortest axis bimrock logging data...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1863
... performance requirement rock mechanics anti-sloughing performance water content shale formation organic amine characteristic rock sample upstream oil & gas jidike formation keshen block compressive strength rock mechanical parameter mudstone cohesion requirement mechanical parameter...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1941
... contemporary civil engineering materials with advantages of abundant raw materials, low price, and simple preparing process. High-performance mortar has many applications on highways, bridges, and high-rise buildings due to its high structural strength and good durability. The compressive strength of high...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1397
... oil well cement cement hydration cement formulation viscosity evolution transit time ht hp consistometer cement property upstream oil & gas property evolution mpa cement slurry cement chemistry thickening time consistency compressive strength apparent activation energy different...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1412
... ABSTRACT: Static Young's modulus ( E ), Poisson's ratio ( ν ), bulk modulus ( K ), and maximum compressive strength ( MCS ) are among the most important parameters in rock mechanics. This work investigates a new approach to accurately estimate static E , ν , K , and MCS from multistage...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1795
... of crushed rocks are commonly used raw materials for production of geopolymers. Geopolymerized mine tailings have a wide application in building and construction industry. The compressive strength of geopolymer was extensively studied by many researchers; however, the tensile strength remains largely...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1822
..., a Bentonite NP concentration of as little as 3%, based on weight of cement (BWOC) increased the Unconfined Compressive Strength (UCS) substantially when compared to the control. The addition of Bentonite NPs also proved to be effective in reducing the thickening time of cement slurry. Testing of the tensile...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1152
... in order to figure out that. The result shows that under the same experimental condition, brittle deformation occurs in tight dolomite, while plastic deformation appears in tight limestone; in addition, compressive strength and Young's modulus of dolomite surpass limestone. The deformation mechanism...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1159
... method of rock softening degree of shale hydration was put forward. The rock mechanical parameters and the dynamic change law of induced microfractures were analyzed. The results shown that shale hydration has an important influence on rock mechanical parameters, in which rock compressive strength, peak...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1735
..., the effects of (i) lower binder proportions (2 wt.% and 4 wt.% by solids mass), and (ii) internal vibration on the designed CTB density, unconfined compressive strength (UCS), tensile strength, and the amount of tailings usage were evaluated. The results showed that the 4 wt.% binder backfill specimens...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1437
... by systematically comparing of uniaxial and triaxial compressive strength, tensile strength, shear strength, internal friction angle, cohesion strength, Young's modulus, Poisson's ratio, brittleness index, fracture amount, and failure modes versus depth. Sandstone strength and mechanical behavior were analyzed...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1438
... mechanic experiments were conducted on shale samples from the same formation with various depths. Rock mechanical properties such as triaxial compression and brittleness were focused on to acquire variation laws of mechanical parameters such as triaxial compressive strength, tensile strength, shear...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1570
... "reservoir" zones. Subsequently, a detailed mechanical characterization was carried out on core plugs taken from each of these zones. Results show nominally "ductile" zones are weaker in terms of UCS, tensile strength, fracture toughness, and confined compressive strength. However, by a variety...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1614
.../cm 3 respectively. The compressive strength and tensile strength of the rocks investigated varied up to 200 MPa and 17 MPa respectively. There is very limited property correlation in the literature for the rocks. Vipulanandan correlation model was effective in relating the tensile strengths...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2079
.... The larger slippage of fracture causes higher loads on casing and ultimately, the loads on casing reaches to a constant value because of the plastic deformation of casing. The elastic modulus of cement sheath has little effect on the loads of casing. But on the contrary, compressive strength of cement sheath...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2129
... compressive strength information probability monte carlo pacific northwest national laboratory principal stress ARMA 21 2129 State of Stress Uncertainty Quantification and Geomechanical Risk Analysis for Subsurface Engineering Burghardt, J. and Appriou, D. Pacific Northwest National Laboratory...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2138
...; therefore, specimens with various crystal orientations are tested and evaluated. The specimens investigated in cyclic tests at 70%–80% of their unconfined compressive strength did not exhibit a significant change in their Young's modulus and damage parameters even after 30 cycles. However, the specimen...

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