Results 31 to 40 of about 46,332 (305)

Uranium storage mechanisms in wet-dry redox cycled sediments

open access: yesWater Research, 2019
Biogeochemical redox processes that govern radionuclide mobility in sediments are highly sensitive to forcing by the water cycle. For example, episodic draining and intrusion of oxidants into reduced zones during dry seasons can create biogeochemical seasonal hotspots of enhanced and changed microbial activity, affect the redox status of minerals ...
Vincent Noël   +4 more
openaire   +3 more sources

Experimental Research on Compression Properties of Cement Asphalt Mortar due to Drying and Wetting Cycle

open access: yesAdvances in Materials Science and Engineering, 2014
Uniaxial compression test of cement asphalt (CA) mortar specimens, due to drying and wetting cycle of 0, 2, 4 and 8 times, is carried out by using the electronic universal test machine, with the strain rate ranging from 1 × 10−5 s−1 to 1 × 10−2 s−1.
Ping Wang   +4 more
doaj   +1 more source

Degradation mechanism of shear strength and compressive strength of red sandstone in drawdown areas during reservoir operation

open access: yesYantu gongcheng xuebao, 2019
So far, the researches on the degradation of macroscopic strength of rock under cyclic wetting-drying conditions in the course of reservoir operation mainly focus on simulations of single environmental conditions without considering the combined actions ...
ZHANG Zhen-hua , WANG Ye
doaj   +1 more source

Influences of Saturation and Wetting-Drying Cycle on Mechanical Performances of Argillaceous Limestones from Liupanshan Tunnel, China

open access: yesAdvances in Materials Science and Engineering, 2019
Water-rock interaction is a vital factor to affect the stabilities of rock projects. This paper conducted a series of experiments on argillaceous limestones to investigate the influences of saturation and wetting-drying cycle on the physical and ...
Bo Meng   +3 more
doaj   +1 more source

Failure mechanism of canal slopes of expansive soils considering action of wetting-drying cycles

open access: yesYantu gongcheng xuebao, 2019
The canal of expansive soils is in the state of wetting-drying cycle because of seasonal water level fluctuations, and its slope instability is easily induced.
CAI Zheng-yin 1, CHEN Hao 1,2, HUANG Ying-hao 1, ZHANG Chen 1
doaj   +1 more source

Analysis of changes in volume and propagation of cracks in expansive soil due to changes in water content [PDF]

open access: yesRevista Brasileira de Ciência do Solo, 2020
Expansive clay soils are a problem for agriculture and engineering because they are susceptible to change in volume due to seasonal variation in water content and temperature.
Silvio Romero de Melo Ferreira   +4 more
doaj   +1 more source

Giant osmotic pressure in the forced wetting of hydrophobic nanopores [PDF]

open access: yes, 2015
The forced intrusion of water in hydrophobic nanoporous pulverulent material is of interest for quick storage of energy. With nanometric pores the energy storage capacity is controlled by interfacial phenomena.
Charlaix, Elisabeth   +3 more
core   +3 more sources

Study on Hygroscopic Swelling and Dehumidification Cracking Characteristics of Expansive Soil under Acid Rain and Cyclic Drying-Wetting

open access: yesAdvances in Civil Engineering, 2021
In this study, to reveal the swelling and cracking characteristics of expansive soil subjected to cyclic drying-wetting of acid rain, the effects of acid rain and cyclic drying-wetting on the swelling deformation of expansive soil were studied by using ...
Jin Chang   +6 more
doaj   +1 more source

Successive cycles of soil drying and wetting improve tolerance to drought in mangabeira [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2023
The objective of this work was to evaluate biomass accumulation and photosynthesis in mangabeira, in response to water deficit and to successive soil drying and wetting cycles.
Adriana Miguel Fernando   +1 more
doaj   +1 more source

Network modelling of the influence of swelling on the transport behaviour of bentonite [PDF]

open access: yes, 2016
Wetting of bentonite is a complex hydro-mechanical process that involves swelling and, if confined, significant structural changes in its void structure.
Athanasiadis, Ignatios   +2 more
core   +2 more sources

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