Results 11 to 20 of about 1,401 (209)

Mechanical properties of coarse-fine particle mixtures: a laboratory investigation of the effect of fine content

open access: yes, 2023
Abstract The impacts of fine content on the microstructure and mechanical behavior of five types of coarse-fine particle mixtures with different fine contents are examined based on laboratory tests. The samples used in these tests all had a void ratio of 0.6.
Liucheng Chang, Ya Wang, Hongyu Wang
openaire   +1 more source

Multi-scale grading utilization based on the characteristics of recycled concrete aggregates: a review

open access: yesFrontiers in Materials, 2023
The physical and mechanical properties of recycled aggregates (RA) among different particle sizes are compared. Results demonstrate that adhesive mortar content is a significant factor in determining the properties of recycled aggregate concrete (RAC ...
Qi Feng   +4 more
doaj   +1 more source

Model test of debris flow source initiation mechanism in Suyu valley of Helan Mountain

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2022
In this paper, through model test, the test of the debris flow phenomenon incipient and run-out mode and accumulation characteristics were observed and studied the helan mountain Suyu valley debris flow affected by the gully bed slope, soil water content,
Yanxiang HU   +5 more
doaj   +1 more source

Experimental investigation on evolution process of suffusion in gap-graded cohesionless soil

open access: yesYantu gongcheng xuebao, 2023
The suffusion involves selective erosion and gradual migration of fine particles through the voids of soil skeleton formed by coarse particles under seepage flow. As a result, redistribution of soil skeleton stress and deformation of soil may be induced.
ZHANG Liangliang 1, 2, DENG Gang 1, 3, CHEN Rui 1, 2, ZHANG Yinqi 3, LUO Zhiyuan 1, 2
doaj   +1 more source

Study Some Physical Properties For Soil In Tuz khormatu North Of Iraq

open access: yesTikrit Journal of Pure Science, 2023
In this research, a study of some physical properties for the soil of tuz khormatu have been achieved of evaluating these properties represented by physical properties for five locations with different depths.
Abdullah Fouad Ibrahim Al Bayaty   +1 more
doaj   +1 more source

Study on the property and airflow grading of Ningxia coal gasification fine slag

open access: yesCleaner Chemical Engineering, 2022
Coal gasification fine slag (FS) is a solid waste of difficult-to-separate nature. In order to improve the reuse rate of coal gasification fine slag resources, so as to improve the value-added utilization and clean transformation for coal chemical ...
Ying Gao   +6 more
doaj   +1 more source

Experimental Study on Influence of Particle Redistribution on Seepage Characteristics of Reverse-Graded Deposits [PDF]

open access: yes长江科学院院报
[Objective] Reverse-graded deposits are prone to geological disasters under rainfall conditions. To comprehensively understand their seepage characteristics and disaster-causing mechanism, the indoor seepage test is conducted using typical deposits as ...
CUI Xian-ze, DING Wang-zong, FAN Yong, YANG Guang-dong, DING Sheng-yong
doaj   +1 more source

Experimental study of filtration & fine particles migration of calcareous sand in coral reef island

open access: yesRock and Soil Mechanics, 2021
Due to its unique biogenesis, forming environment and deposition process, calcareous sand is featured with irregularity, brittleness, weak structure and low cohesion, and is considered substantially different from the common terrestrial sand deposits ...
JU Yuan-jiang   +4 more
doaj   +1 more source

Experimental study on pore structure and freezing characteristics of graded soils based on NMR

open access: yesYantu gongcheng xuebao, 2022
The freezing characteristics of pore water is the basis for studying the moisture and heat transfer and frost heave of frozen roadbeds. Based on the nuclear magnetic resonance (NMR) technology, the effects of the fine-grained soil type, the fine-grained ...
LIU Qian-qian 1, 2, CAI Guo-qing 1, 2, HAN Bo-wen 2, QIN Yu-teng 2, LI Jian 2
doaj   +1 more source

The Effect of Temperature, Humidity, and Silicon Content on the Oxidation of Fine Iron Particles

open access: yes, 1992
In this study, the oxidation and electrochemical corrosion of Fe-Si particles used in magnetic recording are investigated under controlled thermal and relative humidity conditions. The relative humidity, above a threshold value, dominates the oxidation behavior.
AS Hadad, PP Pizzo
openaire   +3 more sources

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