16. Standardizing the approach to specifying quarried rock in coastal structures and breakwaters
-
Published:1992
J. D. Simm, J.-P. Latham, C. Orbell-Durrant, 1992. "16. Standardizing the approach to specifying quarried rock in coastal structures and breakwaters", Coastal structures and breakwaters: Proceedings of the conference organized by the Institution of Civil Engineers, and held in London on 6&8 November 1991, The Institution of Civil Engineers
Download citation file:
Quarried rock, widely used in coastal structures and breakwaters, is often ill defined and specified. Economy is thereby often lost and payment disputes are frequent. This paper summarises the main problems encountered and sets out a workable and coherent set of defined parameters together with guidance values for these parameters. Aspects covered include density, durability, nominal diameter, shape, grading, profile measurement and payment procedure. The paper concludes with reference to standard gradings and methods of optimising quarry output and to the European standardisation issue.
SYNOPSIS
INTRODUCTION
HISTORICAL PROBLEMS IN SPECIFICATION AND MEASUREMENT
FIRST LEVEL OF STANDARDISATION-COMMON DEFINITIONS AND APPROACHES
SECOND LEVEL OF STANDARDISATION: GUIDANCE VALUES FOR DEFINED PARAMETERS
THIRD LEVEL OF STANDARDISATION: METHODS OF ACHIEVING MORE ECONOMIC USE OF AVAILABLE ROCK
EUROPEAN STANDARDISATION
ACKNOWLEDGEMENTS
REFERENCES
