Freeze-thaw
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Freeze-thaw action on brick
... This paper deals mainly with those service conditions that affect freeze-thaw action, particularly the temperature changes experienced by a brick in a wall and th[r] ...
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Poromechanical behavior of cement-based materials subjected to freeze-thaw actions with salts : modeling and experiments
... to freeze-thaw loadings can be classified as three different sorts based on the characteristics of deformation curves, see Table ...with freeze-thaw cycles because the ice gem nucleated on the ...
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Characteristics of ultrasonic acoustic emissions from walnut branches during freeze–thaw-induced embolism formation
... ual freeze–thaw-induced UAEs were investigated for sample segments with three different ψ ranges (Table ...a freeze– thaw cycle was observed ...In freeze–thaw conditions, the ...
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Freeze/thaw mapping using SMAP data over the Canadian tundra : Sheldrake and Nastapoka (Turjusuk park).
... Freeze/ Thaw mapping using SMAP data over the Canadian Tundra: Sheldrake and Nastapoka (Turjusuk park) Chaima Touati 1 , Tahiana Ratsimbazafy 1 , Monique Bernier 1 , Lingxiao Wang 2 , Ralf Ludwig 2 1 ...
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Freeze-Thaw Stress: Effects of Temperature on Hydraulic Conductivity and Ultrasonic Activity in Ten Woody Angiosperms
... classic thaw-expansion hypothesis (Mayr and Sperry, 2010); however, all species studied have pro- duced UE on freezing, which cannot yet be explained (Raschi et ...during freeze-thaw cycles in ...
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Using available time series of passive and active microwave to develop smap freeze/thaw algorithms adapted for the Canadian Subarctic.
... seasonal Freeze/Thaw (F/T) cycle plays an important role in Boreal and Arctic regions where structure, condition and distribution of vegetation are strongly regulated by environmental factors such as soil ...
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Development of SMAP (soil moisture active and passive) Freeze/Thaw algorithms adapted for the Canadian Tundra.
... SMOS, Freeze/Thaw, Nunavik 1. INTRODUCTION The seasonal Freeze/Thaw (F/T) cycle is a major phenomenon in the climate system and plays an important role in ecosystem functioning [2] by ...
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Cavitation and water fluxes driven by ice water potential in Juglans regia during freeze–thaw cycles
... Abstract Freeze–thaw cycles induce major hydraulic changes due to liquid-to-ice transition within tree ...during freeze–thaw cycles in Juglans regia ...during freeze–thaw cycles ...
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Detailed detection of active layer freeze-thaw dynamics using quasi-continuous electrical resistivity tomography (Deception Island, Antarctica)
... The consistency of our full-year results with previous stud- ies in more easily accessible alpine and polar regions (e.g., Hilbich et al., 2011; Supper et al., 2014; Keuschnig et al., 2017; Tomaskovicova, 2018; ...
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STUDYING WITH A FULL-FIELD MEASUREMENT TECHNIQUE THE LOCAL RESPONSE OF ASPHALT SPECIMENS SUBJECTED TO FREEZE- THAW CYCLES
... In this study, four Hot Mixtures Asphalt (HMA) specimens with 0%, 20%, 40% and 100% of RAP (Recycled Asphalt Pavement) content were considered. These materials were used in a previous study, which was devoted to the ...
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Petroleum hydrocarbon biodegradation under seasonal freeze-thaw soil temperature regimes in contaminated soils from a sub-Arctic site
... from -5 to 4 °C at a thawing rate of +0.16 °C d -1 . In the unamended (control) tank, the F2 fraction only decreased by 14% during the same period. Biodegradation of individual hydrocarbon compounds in the ...
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Mapping freeze/thaw cycle in Turjusuq Park using active and passive data.
... Boreal and arctic regions form a complex land cover mosaic where vegetation structure, condition and distribution are strongly regulated by environmental factors such as soil moisture and permafrost. The main purpose of ...
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Freeze-thaw durability of porous building materials
... Freeze-thaw durability of porous building materials Litvan, G. G. https://publications-cnrc.canada.ca/fra/droits L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions ...
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How does freeze-thaw affect solvent-based paints?
... How does freeze-thaw affect solvent-based paints? O'Doherty, G. A.; Ashton, H. E. https://publications-cnrc.canada.ca/fra/droits L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux ...
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Particulate admixture for enhanced freeze-thaw resistance of concrete
... https://doi.org/10.1016/0008-8846(78)90057-1 Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Particulate admixture for enhanced freeze-thaw ...
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Moisture content and freeze-thaw cycles of masonry materials
... Moisture content and freeze-thaw cycles of masonry materials Ritchie, T.; Davison, J. I. https://publications-cnrc.canada.ca/fra/droits L’accès à ce site Web et l’utilisation de son contenu sont assujettis ...
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Development of SMAP Freeze/Thaw algorithms adapted for the Canadian tundra.
... Springtime Thaw In The Terrestrial High Latitudes: Monitoring A Major Control On The Biospheric Assimilation Of Atmospheric Co(2) With Spaceborne Microwave Remote ...Boreal Freeze/Thaw With ALOS ...
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Preliminary evaluation of the freeze-thaw resistance of hydraulic lime mortars
... uni-directional freeze-thaw ...of freeze-thaw resistance. Factors which influenced freeze-thaw resistance were the type and source of hydraulic lime, length of initial damp ...
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Further study of particulate admixtures for enhanced freeze-thaw resistance of concrete
... 5-Residual expansion as a function of the num- ber of freeze-thaw cycles of duplicate cement paste specimens (water-cement ratio = 0.48) with an without particulate admix[r] ...
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Special requirements for freeze/thaw resistance of concrete in PWR nuclear civil works
... It is also acceptable to waive the requirement for the minimum air content for concrete exposed to frequent or very frequent attack from de-icing agents (XF2 or XF4) – in such case the scaling test according to XP P ...
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