Results 11 to 20 of about 2,038,816 (256)

Experimental study on pore structure and dynamic mechanical properties of modified rubber concrete after freeze-thaw cycle [PDF]

open access: yesScientific Reports
In this paper, the pore structure and mechanical characteristics of freeze-thaw cycled plain concrete, rubber concrete and modified rubber concrete (rubber volume content 10%) under impact load were investigated by using nuclear magnetic resonance ...
Minggao Chen   +3 more
doaj   +3 more sources

Experimental Study on Freeze-Thaw Cycle Duration of Saturated Tuff

open access: yesAdvances in Civil Engineering, 2020
The freeze-thaw duration is one of the important factors affecting the change of rock properties. However, this factor has not formed a unified standard in the freeze-thaw cycle test.
Man Huang   +4 more
doaj   +2 more sources

Study on Long-Term Dynamic Mechanical Properties and Degradation Law of Sandstone under Freeze-Thaw Cycle

open access: yesShock and Vibration, 2020
This study is based on the tunnel-face slope engineering of Dongfeng tunnel in Shanxi section of China’s Shuozhou-Huanghua Railway. The sandstone specimens in the perennial freeze-thaw zone of the slope were collected to carry out freeze-thaw cycle ...
Qingsong Pu   +6 more
doaj   +2 more sources

Study on Strength Characteristics of Solidified Contaminated Soil under Freeze-Thaw Cycle Conditions

open access: yesAdvances in Civil Engineering, 2018
Cement solidification/stabilization is a commonly used method for the remediation of contaminated soils. The stability characteristics of solidified/stabilized contaminated soils under freeze-thaw cycle are very important.
Qiang Wang, Jinyang Cui
doaj   +2 more sources

Microscopic mechanism of calcium silicate hydrate(C-S-H) freeze-thaw cycle based on molecular dynamics [PDF]

open access: yesScientific Reports
In order to study the microstructure changes of C-S-H under the freeze-thaw cycling, the freeze-thaw cycle simulation of C-S-H is carried out based on molecular dynamics in this paper.
Xiaotian Lin   +6 more
doaj   +2 more sources

Research on Fractal Characteristics and Energy Dissipation of Concrete Suffered Freeze-Thaw Cycle Action and Impact Loading [PDF]

open access: yesMaterials (Basel), 2019
In order to study the fractal characteristics and energy dissipation of concrete suffered freeze-thaw cycle actions and impact loading, C35 concrete was taken as the research object in this paper, and freeze-thaw cycle tests were carried out with a ...
Wenbiao Liang   +3 more
core   +2 more sources

The Relationship between Mechanical Properties and Gradual Deterioration of Microstructures of Rock Mass Subject to Freeze-thaw Cycles [PDF]

open access: yesEarth Sciences Research Journal, 2018
Under freeze-thaw cycles, the relationship between rock microstructure deterioration and its macroscopic mechanical characteristics has drawn extensive attention from engineers. With the objective to incorporate freeze-thaw cycle experiment into headrace
Haibo Jiang
doaj   +2 more sources

Experimental Study on Deformation and Damage Evolution of Cracked Red Sandstone Under Freeze–Thaw Cycles

open access: yesApplied Sciences
Cracked rock masses in cold regions are subjected to freeze–thaw cycles over extended periods, resulting in freeze–thaw deformation. The combined effects of freeze–thaw cycling and the depth of cracks significantly influence the stability and durability ...
Xize Han   +8 more
doaj   +2 more sources

Study on the Frost Heaving Characteristics and Strength Deterioration of Saturated Red Sandstone Under a Unidirectional Freeze–Thaw Cycle

open access: yesApplied Sciences
In order to explore the influence of the temperature gradient on rock failure degree during freezing and thawing, freeze–thaw-cycle tests were carried out on saturated red sandstone under the conditions of all-directional freeze–thaw and unidirectional ...
Zhongyao Li   +4 more
doaj   +2 more sources

Freeze/thaw protection of concrete with optimum rubber crumb content [PDF]

open access: yes, 2012
This research looks at utilising an optimum quantity of rubber crumb as an air entraining ad-mixture in concrete, thus providing maximum freeze-thaw protection and maximum strength.
Kathryn A. Coventry   +5 more
core   +1 more source

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