Thermal volume changes of saturated sand during loading-unloading-heating phase

The influence of temperature on the volume change of loose, saturated sand was assessed through a series of temperature-controlled hollow-cylinder triaxial tests. The sand specimens were isotropically compressed and unloaded to induce an overconsolidation effect, then subjected to drained heating. During drained heating, water was expelled from the sand specimens and the thermally-induced axial and volumetric strains were negative, reflecting isotropic expansion.

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Influence of Temperature on the Volume Change Behavior of Saturated Sand

Geotechnical Testing Journal ◽

10.1520/gtj20160308 ◽

2018 ◽

Vol 41 (4) ◽

pp. 20160308 ◽

Cited By ~ 10

Author(s):

Hong Liu ◽

Hanlong Liu ◽

Yang Xiao ◽

John S. McCartney

Keyword(s):

Volume Change ◽

Saturated Sand ◽

Influence Of Temperature ◽

Change Behavior ◽

Influence Of Temperature On ◽

Volume Change Behavior

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The influence of temperature on autogenous volume changes in cementitious materials containing shrinkage reducing admixtures

Cement and Concrete Composites ◽

10.1016/j.cemconcomp.2012.04.003 ◽

2012 ◽

Vol 34 (7) ◽

pp. 855-865 ◽

Cited By ~ 27

Author(s):

Gaurav Sant

Keyword(s):

Cementitious Materials ◽

Volume Changes ◽

Influence Of Temperature ◽

Influence Of Temperature On ◽

Shrinkage Reducing Admixtures

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Application of Image Processing for Volume Measurement in Multistage Triaxial Tests

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.931-932.501 ◽

2014 ◽

Vol 931-932 ◽

pp. 501-505 ◽

Cited By ~ 2

Author(s):

Dolrerdee Hormdee ◽

Nicha Kaikeerati ◽

Piyoros Jirawattana

Keyword(s):

Image Processing ◽

Volume Change ◽

Volume Measurement ◽

Triaxial Tests ◽

Volume Changes ◽

Change Measurement ◽

Air Volume ◽

Volume Change Measurement ◽

Expansion Effect ◽

Liquid Measurement

To investigate the unsaturated soil properties, the measurement of volume change is dealt with both water and air volume changes. It cannot be defined by using only the volume of water flown in out from the specimen as saturated soil. This paper presents the volume change measurement by using image processing (IP) from the series of consolidated undrained (CU) and constant water content (CW) tests for saturated and unsaturated conditions of soil, respectively. The results, obtained between IP and the cell liquid measurement considered movement of piston and the cell expansion effect with pressure including creep, are good corresponding except the specimen has an irregular deformation.

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Effect of Temperature on Internal Shear Strength Mechanism of Needle-Punched GCL

Sustainability ◽

10.3390/su13084585 ◽

2021 ◽

Vol 13 (8) ◽

pp. 4585

Author(s):

Yang Yang ◽

Jianyong Shi ◽

Xuede Qian

Keyword(s):

Shear Strength ◽

Large Scale ◽

Peak Strength ◽

Effect Of Temperature ◽

Influence Of Temperature ◽

Scale Temperature ◽

Influence Of Temperature On ◽

Temperature Controlled ◽

Increasing Temperature ◽

Direct Shear Apparatus

Needle-punched geosynthetic clay liner (NPGCL) has been widely used in landfills. The internal strength of the GCL changes with temperature variation, which affects its application in landfills. A large-scale temperature-controlled direct shear apparatus was developed to study the internal shear strength characteristics of GCL affected by temperature. The internal strength of the GCL was dependent on the bentonite, the fibers, and the interaction between the fibers and the bentonite. The influence of temperature on the internal strength of the GCL was mainly reflected in the displacement at peak strength. However, the peak strength was basically unchanged. The strength of the bentonite and the fibers-reinforced bentonite increased when the temperature increased. The tensile strength of needle-punched fibers decreased with increasing temperature. The peak strength displacement of the fibers-reinforced bentonite decreased with increasing temperature.

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The influence of temperature on the activity and water use of farmed mink (Mustela vison)

Animal Science ◽

10.1017/s1357729800053376 ◽

2003 ◽

Vol 76 (1) ◽

pp. 111-118 ◽

Cited By ~ 5

Author(s):

C.P.B. Hansen ◽

L.L. Jeppesen

Keyword(s):

Body Temperature ◽

Water Use ◽

Stereotyped Behavior ◽

High Ambient Temperature ◽

Influence Of Temperature ◽

Behavioral Mechanism ◽

Level Of Activity ◽

Different Temperatures ◽

Influence Of Temperature On ◽

Temperature Controlled

AbstractSubmerging in water is used by many species as a behavioral mechanism to reduce body temperature, and farmed mink have been shown to increase their swimming activity during summer months. Therefore we investigated whether a maintained, seasonally independent, high ambient temperature would lead to more swimming in farmed mink. Twelve mink were housed in a temperature controlled room and subjected to two periods of four different temperatures (8, 16, 24 and 32 °C) with each temperature lasting 4 days. Although some types of activities changed with changes in temperature, the total level of activity was not affected. At high temperatures, the mink did not show any increase in either swimming or stereotyped behavior. It is concluded that within the limits of the experiment, mink will not use submerging in water as a thermoregulatory mechanism.

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The effect of temperature on high-resolution TEM image contrast

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100139573 ◽

1995 ◽

Vol 53 ◽

pp. 640-641

Author(s):

T. Geipel ◽

W. Mader ◽

P. Pirouz

Keyword(s):

Form Factor ◽

Inelastic Scattering ◽

Accurate Method ◽

Waller Factor ◽

Effect Of Temperature ◽

Specimen Thickness ◽

Influence Of Temperature ◽

Debye Waller Factor ◽

Influence Of Temperature On ◽

Atomic Form Factor

Temperature affects both elastic and inelastic scattering of electrons in a crystal. The Debye-Waller factor, B, describes the influence of temperature on the elastic scattering of electrons, whereas the imaginary part of the (complex) atomic form factor, fc = fr + ifi, describes the influence of temperature on the inelastic scattering of electrons (i.e. absorption). In HRTEM simulations, two possible ways to include absorption are: (i) an approximate method in which absorption is described by a phenomenological constant, μ, i.e. fi; - μfr, with the real part of the atomic form factor, fr, obtained from Hartree-Fock calculations, (ii) a more accurate method in which the absorptive components, fi of the atomic form factor are explicitly calculated. In this contribution, the inclusion of both the Debye-Waller factor and absorption on HRTEM images of a (Oll)-oriented GaAs crystal are presented (using the EMS software.Fig. 1 shows the the amplitudes and phases of the dominant 111 beams as a function of the specimen thickness, t, for the cases when μ = 0 (i.e. no absorption, solid line) and μ = 0.1 (with absorption, dashed line).

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