Results 1 to 10 of about 2,038,816 (256)

Fractional Stress Relaxation Model of Rock Freeze-Thaw Damage

open access: yesAdvances in Materials Science and Engineering, 2021
Freeze-thaw cycle is a type of fatigue loading, and rock stress relaxation under freeze-thaw cycles takes into account the influence of the freeze-thaw cycle damage and deterioration.
Q. Liu   +7 more
doaj   +2 more sources

Experimental Study on Damage Characteristics of Solidified Mud under Coupling Action of Freeze-Thaw Cycle and Chloride Salt

open access: yesGeofluids, 2022
The physical properties of solidified mud will deteriorate under the combined action of freezing-thawing cycle and chlorine salt, which will affect the safety and stability of solidified mud engineering.
Jinsong Zhang   +4 more
doaj   +2 more sources

Analysis of Microscopic Pore Characteristics and Macroscopic Energy Evolution of Rock Materials under Freeze-Thaw Cycle Conditions

open access: yesMathematics, 2023
The repeated cyclic freeze-thaw effect in low-temperature environments causes irreversible damage and deterioration to the microscopic pore structure and macroscopic mechanical properties of a rock.
Yigai Xiao   +3 more
doaj   +2 more sources

Study on the Properties of Malan Loess in Lyuliang Area Under Freeze-thaw Cycles

open access: yesTaiyuan Ligong Daxue xuebao, 2021
Little research has been mode on freezing and thawing landslides in Shanxi, a typical seasonally frozen soil area, but landslides caused by freezing and thawing every year are frequent.
Lingling ZHANG   +3 more
doaj   +2 more sources

Experiment research on unfrozen water content and pore characteristic of cement improved soil under freeze-thaw cycle

open access: yes矿业科学学报, 2023
Grouting with cementitious materials is a commonly-recognized measure to control the freezing and thawing deformation of artificial freezing strata. This study investigated the unfrozen water content of silty clay with different cement content under ...
Liu Bo   +5 more
doaj   +2 more sources

Transformation characteristics of pore structure of coal by freezing-thawing cycle

open access: yesMeikuang Anquan, 2022
In order to improve the effect of the gas extraction, to explore the transformation characteristics of freezing and thawing cycle of coal pore, vacuum full anthracite coal samples of water are placed in cooler(-20 ℃), the nuclear magnetic resonance T2 ...
YUAN Junwei, XIA Jingyi, CHU Shaofei
doaj   +1 more source

Study on the influence of freeze-thaw cycles on the deformation and mechanical properties of expansive soil

open access: yesShuili Shuiyun Gongcheng Xuebao, 2021
In order to explore the influence of the severe weather in the seasonal freezing area on the expansion and contraction deformation and physical and mechanical properties of the canal base expansive soil with different water contents, the expansive soil ...
CHEN Yong   +5 more
doaj   +1 more source

Responses of feldspathic sandstone and sand-reconstituted soil C and N to freeze–thaw cycles

open access: yesOpen Chemistry, 2023
The Mu Us Desert in China is significantly affected by seasonal freeze–thaw processes. In order to evaluate the adaptation potential of reconstituted soil with different proportions of feldspathic sandstone and sand to extreme environment, the laboratory
Zhang Haiou   +4 more
doaj   +1 more source

The Effect of Freeze/Thaw Cycles on Reproducibility of Metabolic Profiling of Marine Microalgal Extracts Using Direct Infusion High-Resolution Mass Spectrometry (HR-MS)

open access: yesMolecules, 2014
During normal sample preparation, storage in freezers and subsequent freeze/thaw cycles are commonly introduced. The effect of freeze/thaw cycles on the metabolic profiling of microalgal extracts using HR-MS was investigated.
Hans Chr. Eilertsen   +5 more
doaj   +1 more source

Mechanical Properties and Freeze–Thaw Durability of Basalt Fiber Reactive Powder Concrete

open access: yesApplied Sciences, 2020
Basalt fiber has a great advantage on the mechanical properties and durability of reactive powder concrete (RPC) because of its superior mechanical properties and chemical corrosion resistance. In this paper, basalt fiber was adopted to modified RPC, and
Wenjun Li   +5 more
doaj   +1 more source

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