ROADSTONE ASSESSMENT - AN ART OR A SCIENCE?

A discussion is presented of the aims of roadstone testing: (1) to assess the quality and usefulness of sources of stone, (2) to ascertain whether the type of stone from a given source is changing significantly, (3) to compare samples from a given source to ensure constant quality, (4) to compare stone quality from different sources, and (5) to ensure that stone quality satisfies specification requirements. The usefulness of a number of standard roadstone evaluation tests (e.g. aggregate strength, aggregate abrasion and polished-stone value) is examined together with the use in certain circumstances of non-standard tests such as affinity for bituminous binders and frost resistance. The effect of metrification on roadstone gradings and test standards is also discussed. The paper was presented at a one-day symposium on roadstone held at the University of Bristol on June 28, 1972. /TRRL/

• Corporate Authors:

  Quarry Managers Journal Limited

  62-64 Baker Street
  London W1M 2BN,   England 
• Authors:
  • Cox, E A
• Publication Date: 1973

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 169-177
• Serial:
  • Quarry Managers' Journal
  • Volume: 57
  • Issue Number: 5

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregates; Aggregates by source; Materials tests; Metric system; Quality control; Specifications; Stone; Strength of materials
• Uncontrolled Terms: Aggregate sources; Aggregate testing; Quality
• Old TRIS Terms: Aggregate characteristics
• ITRD Terms: 4577: Aggregate; 9102: Method; 3822: Polishing; 5544: Strength (mater); 6255: Test; 5293: Wear
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00083301
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: May 29 1975 12:00AM