ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 8

Influence of Suction Dissipation on Compression of Compacted Rock Aggregates Due to Immersion

Yoshida, N
Associate Professor, Research Center for Urban Safety and Security,

Nishi, M
Emeritus Professor, Kobe University, Rokkodai, Nada, Kobe,

(Received 18 May 2001; accepted 12 September 2001)

Abstract

This paper focuses on the influence of suction dissipation upon the development of compressive settling in compacted rock aggregates due to immersion. The influence of disintegration of the material upon the development of compressive settling is also addressed. For this, a staged compression-immersion test is carried out on compacted quartz porphyry as well as mudstone aggregates. The results show that for the quartz porphyry aggregates, the influence of suction is slight. For the mudstone aggregates, a relatively high suction exists initially, probably due to the inherent nature of this type of rock, and the influence of the dissipation of mere suction upon compressive settling could be smaller than that of disintegration or degradation of the aggregates.

Keywords:
rock aggregates, mudstone, suction, compressive settling, immersion, deterioration

Paper ID: JTE12296J
DOI: 10.1520/JTE12296J
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