CONSIDERATIONS ON THE CRUSHING TEST FOR ROCK MATERIALS AND A PROPOSAL FOR A BETTER STANDARDISATION

CONSIDERAZIONI SULLA PROVA DI FRANTUMAZIONE DEI MATERIALI LAPIDEI E PROPOSTA PER UNA MIGLIORE NORMALIZZAZIONE

The findings of tests on the crushing coefficient of rocks of different lithologic type, indicate that the coefficient is influenced by varying the initial grain size composition within a prescribed range. The extent of this influence is dependent on the type of material, and the standardisation of a reference grain size distribution is therefore proposed to eliminate any bias. An experiment is described showing the use of this reference value, to arrive at the crushing coefficient. This was achieved by using a sample with a random grain size distribution falling however within the prescribed range for the normal test procedure. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03732916
• Corporate Authors:

  Permanent International Assoc of Road Congresses

  Via Andreani 4
  Milan,   Italy 
• Authors:
  • Loraschi, D
  • Diraschi
• Publication Date: 1975-1-2

Language

• Undetermined

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 67-75
• Serial:
  • Strade
  • Issue Number: 1
  • Publisher: Casa Editrice la fiaccola
  • ISSN: 0373-2916

Subject/Index Terms

• TRT Terms: Coefficients; Compression; Crushed rock; Crushing; Grain size (Geology); Rocks; Standardization; Testing; Tests
• Uncontrolled Terms: Particle size distribution
• ITRD Terms: 6410: Coefficient; 5532: Compression; 5176: Crushing; 6200: Particle size distribution; 4154: Rock; 6255: Test
• Subject Areas: Geotechnology; Highways; I36: Aggregates;

Filing Info

• Accession Number: 00159836
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Feb 16 1978 12:00AM