Results 41 to 50 of about 11,779 (284)

Effect of drying-wetting cycles on triaxial compression mechanical properties of sandstone [PDF]

open access: yes, 2016
To investigate the geological hazards caused by the action of drying-wetting cycle on rocks, we conducted a conventional triaxial compression test on sandstone under a high number of repeated drying-wetting cycles.
Kegang, Li   +3 more
core   +1 more source

STUDY ON SOIL BEHAVIOR UNDER MULTIPLE WETTING AND DRYING CYCLES [PDF]

open access: yes, 2019
During thermal seasonal variations, expansive soils may exhibit increase in volume upon wetting (swell) and decrease in volume during drying (shrinkage).
Hajjat, Jumanah Ahmad Mohammad
core   +1 more source

Aging of recycled aggregates mortars by drying-wetting cycles

open access: yesConstruction and Building Materials, 2021
ABSTRACT: Due to the large amount of CO2 emissions produced nowadays by the construction sector, the scientific community is looking for measures that will bring constructions to the be as environmental-friendly as possible. One of the most popular lines of research is the use of construction waste as recycled aggregates for the production of recycled ...
Sainz-Aja Guerra, José Adolfo   +5 more
openaire   +2 more sources

Constitutive Relation with Double Yield Surfaces of Expansive Soil Improved by Lime and Flyash Subjected to Wetting-drying Cycles

open access: yes工程科学与技术, 2021
The elasto-plastic stress-strain constitutive relation with double yield surfaces of expansive soil improved by lime and flyash was studied based on the ellipse-parabola constitutive model.
Yunye DENG, Changping WEN
doaj  

Effect of Dry–Wet Cycling on Methanotrophs in Wetland Soils

open access: yesBiology
Wetlands occupy a mere 6% of Earth’s land surface, yet they contribute 25–45% of global natural methane (CH4) emissions. A key contradiction emerges here: it is the soil of these wetlands that serves as the host for methane-trophic microorganisms, which can oxidize the vast majority of the methane they produce under specific conditions (for example ...
Xi Zhu   +3 more
openaire   +2 more sources

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 study on influences of wetting-drying cycles on microstructure and water-retention characteristics of clay

open access: yesYantu gongcheng xuebao
The Long-term wetting-drying cycles can weaken the engineering characteristics of subgrade fillers, resulting in engineering disasters. It is necessary to study the effects of the wetting-drying cycles on their microstructure and water-retention ...
YANG Xu 1, CAI Guoqing 1, 2, LIU Qianqian 1, LI Fengzeng 3, SHAN Yepeng 1
doaj   +1 more source

Long Term Strength and Durability of Clayey Soil Stabilized With Lime [PDF]

open access: yesEngineering and Technology Journal, 2011
This study deals with durability characteristics and unconfined compressive strength of clayey soil stabilized with lime. The tests comprises of unconfined compressive strength for samples stabilized with the optimum lime percent (4%), and subjected to ...
Abdulrahman H. Al-Zubaydi   +2 more
doaj   +1 more source

Influence of cyclic wetting‐drying on the mechanical strength characteristics of coal samples: A laboratory‐scale study

open access: yesEnergy Science & Engineering, 2019
Water‐coal interactions have gained much recent attention, although few studies focus on the strength of coal under wetting‐drying cycles. This study investigates changes in the microstructure and mechanical strength of coal that are induced by water ...
Shaojie Chen   +5 more
doaj   +1 more source

Nonequilibrium Wet–Dry Cycling Acts as a Catalyst for Chemical Reactions

open access: yesThe Journal of Physical Chemistry B
Recent experimental studies suggest that wet-dry cycles and coexisting phases can each strongly alter chemical processes. The mechanisms of why and to which degree chemical processes are altered when subject to evaporation and condensation are unclear. To close this gap, we developed a theoretical framework for non-dilute chemical reactions subject to ...
Haugerud, Ivar Svalheim   +2 more
openaire   +4 more sources

Home - About - Disclaimer - Privacy