The shape factor of quarry rock - Reassessment of the value and study into parameters of influence

Witteman, D; Ngan-Tillard, D.J.M.; Stam, CJM; Stive, Marcel; Verhagen, H. J.

The shape factor of quarry rock - Reassessment of the value and study into parameters of influence

Other (2015)

Authors

D Witteman External organisation

D.J.M. Ngan-Tillard

CJM Stam External organisation

Marcel Stive Coastal Engineering -

H. J. Verhagen Coastal Engineering -

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Published Date

2015

Language

English

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Abstract

The shape factor of quarry rock - defined by the ratio of the median nominal diameter and median sieve diameter - is often applied throughout various phases in the realization of a granular hydraulic structure. In this research, the value as well as the variability of the shape factor is reassessed. Also the dependency of the shape factor on elongation and blockiness - two parameters to describe the shape of rock - is examined. In order to do so a series of experiments has been performed on multiple rock samples.
The research focuses on experimental rock data. Each file represents a specific rock grading. On each grading, sieve tests, density tests and shape tests have been performed in both IJmuiden, the Netherlands and Slovag, Norway.