The modulus of elasticity of sand is in the range of 20 to 24 MPa. This variation is almost 16 . The range of modulus of elasticity of sand as per literature is 10 to 25 MPa 2. Therefore, it can be said that Es value which is experimentally determined confirms the range given in the literature for the soil under consideration. IV.
Get PriceThe modulus of elasticity of sand can be computed from the following expression based on the theory of elasticity Terzaghi. Si qB 1 Where, Si is immediate elastic settlement of soil, q is intensity of contact pressure, B is least lateral dimension of footing, Es is modulus of elasticity of soil, is Poissons ratio, If is influence ...
Get PriceTable 1 Characteristics of the bonded sand specimens used in the elastic modulus PUNB measurements. Sand Type IC55 round grain silica lake sand Binder Pepset x1000, x2000 Catalyst Pepset 3500 Binder Percentage 1.25 by total weight Binder Ratio 6040 Catalyst Percentage 8 of binder weight Additives 3 black iron oxide by total weight
Get PriceIn this study, we used artificial neural networks ANN to estimate static Youngs modulus Estatic for sandstone formation from conventional well logs. ANN design parameters were optimized using the self-adaptive differential evolution optimization algorithm. The ANN model was trained to predict Estatic from conventional well logs of the bulk density, compressional time, and shear time.
Get PriceJan 06, 2012 437. With the increasing use of concrete and steel in combination, the modulus of elasticity of cement mortar and concrete assumes a new importance, since the ratio of the stresses in the two materials depends upon the relative moduli of elasticity. Some of the earlier determinations of the modulus of mortar gave very high values. This may have been due to the use of richer mixtures,
Get PriceSince the stress-strain curve of the cemented sand artificial material is nonlinear and changes more significantly with increasing stress strain, the elastic modulus is correlated with the selected reference points. Many parameters can be described, such as initial modulus E I, secant modulus E s, tangent modulus E t, and mixed modulus E 26. This study uses the mixed modulus i.e., the slope of the
Get PriceJan 29, 2019 The stressstrain curve and modulus of elasticity were recorded at the age of 28 days, whereas the other mechanical properties were measured at 91 days because of a large number of specimens. The air-dried and oven-dried densities of the concrete was recorded at the age of 28 days based on the procedure outlined in ASTM C138 2012 .
Get PriceWhen the time changes from 0.001 to 0.004 seconds, the elastic modulus decreases by 50. The elastic modulus will be 10 of initial value with a longer time of more than 0.1 seconds. The elastic modulus of oil sand under a loading time of more than 10 seconds was very low, and its elasticity can be neglected compared with the solid grains.
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Get PriceELASTIC STIFFNESS MODULI OF HOSTUN SAND Declaration The work described in this project report is all my own unaided effort, as are all ... 1993 or G e Robertson et al. 1995 for elastic shear modulus or G 0 Houlsby and Wroth, 1991 for shear modulus at zero strain, as whether or not the soil
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