The different indexes analyzed above indicate different degrees of rock damage. Damage variable assessment is an important analysis to measure the irreversible deterioration degree of rock materials, which can quantitatively evaluate the degree of rock damage. The choice of expression method should be com...
However, when the freezing method was altered to rapid freezing using liquid nitrogen, the environmental stability of lead diminished compared to the slow freezing process at −20 °C. The proportions of exchangeable lead and residual lead were 10.34% and 55.83%, respectively, indicating the less...
Freeze–thaw effects pose the significant challenge to asphalt pavement durability, leading to various types of distress and deterioration. This study investigates the freeze–thaw damage mechanism of Styrene–Butadiene–Styrene (SBS) asphalt mixtures co
The pouring process of the composite column adopted the method of pouring the UHPC shell first and then pouring the internal concrete. To maintain the integrity of the steel strain gauge, a detachable transparent acrylic plate was used as the outermost mold, and the PVC pipe was used as the ...
The pouring process of the composite column adopted the method of pouring the UHPC shell first and then pouring the internal concrete. To maintain the integrity of the steel strain gauge, a detachable transparent acrylic plate was used as the outermost mold, and the PVC pipe was used as the ...
was chosen as the research object of alpine open-pit coal mines. Using the method of indoor testing, different freeze–thaw freezing temperatures, different numbers of cycles, changes in the mechanical properties of the mine-road materials, and microscopic changes were studied. From the experimental...
which means this method can maintain the structure of the soil well. Four groups of soil samples were taken, and the sampling locations are shown inFigure 4andTable 4. After that, the internal structures of soil samples were obtained through CT in the Cold and Arid Regions Environmental and ...
The liquid nitrogen spray freezing method, as a cold storage method for frozen vegetable products, can rapidly reduce the central temperature of the product to about −18 °C, supplemented by post-harvest pre-crushing, vacuum deoxidation, and other treatments, and can effectively delay the loss...
To meet normality for these analyses, we transformed all the variables using the square root (sqrt), log, or BoxCox transformation method (Table S1). 3. Results 3.1. Soil Properties and Enzyme Activities Our treatments had different influences on soil properties. Soil NH4+-N and TDN were ...
(i.e., 6%, 10%, 14%, 18%, and 22%). Subsequently, these samples were moved to a sealed container for 24 h before the laboratory tests. After the settling period, the compaction method was applied to generate the cylindrical specimens with a dimension of 79.8 mm and a height of 20.0...