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Cyclic Resistance of Fly Ash Influenced by Anisotropic Stress Condition, Sand Contents, and Gravel Content by Zhen-Zhen Nong; Sung-Sik Park; Sae-Byeok Lee; Peng-Ming Jiang is a Engineering article available to read on EtoBox.

What is Cyclic Resistance of Fly Ash Influenced by Anisotropic Stress Condition, Sand Contents, and Gravel Content about?

A series of cyclic triaxial tests were performed to study the effect of anisotropic stress, sand content (in a fly ash-sand mixture), and addition of gravel on the cyclic resistance of fly ash. The results indicated that the failure mode of pure fly ash in the presence of isotropic stress was cyclic mobility and that the cyclic resistance of pure fly ash was significantly lower than that of clean Nakdong River sand for given test conditions. The cyclic resistance of pure fly ash decreased when the effective confining stress increased from 100 to 200 kPa, as expected. The failure of pure fly ash conducted in the absence of stress reversal was due to the initial axial strain accumulation and subsequent sudden runaway deformation, and this failure mode differed dramatically from that of fly ash conducted under symmetrical stress reversal. An increase in the anisotropic ratio resulted in a decrease in the cyclic resistance of pure fly ash. Nakdong River sand and gravels were added to pure fly ash and it was examined whether the cyclic resistance of fly ash increased. Addition of sand was observed to decrease the cyclic resistance for 10% and 20% sand content by volume, regardless of th

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Author

Zhen-Zhen Nong; Sung-Sik Park; Sae-Byeok Lee; Peng-Ming Jiang

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)