STRENGTH TESTS ON AUSTRIAN ROADSTONES

FESTIGKEITSPRUEFUNGEN AN OESTERREICHISCHEN STRASSENBAUGESTEINEN

WITHIN THE FRAMEWORK OF RESEARCH PROJECTS (IRRD 700547, 700638, 700658, 701177) A SERIES OF MATERIAL STRENGTH VALUES WAS ASCERTAINED FOR 40 AUSTRIAN ROCKS AND THEIR DERIVED AGGREGATES. THE FOLLOWING TESTS WERE USED: MODIFIED LOS ANGELES TEST ON PARTICLE SIZES 5/8 CONFORMING TO SPECIFICATION AND REGULATIONS FOR HIGHWAY CONSTRUCTION 8.111, LOS ANGELES TEST ON PARTICLE SIZES 5/8 AND 8/12 CONFORMING TO AUSTRIAN STANDARD NO B 3128; MODIFIED DEVAL ATTRITION TEST ON PARTICLE SIZES 5/8, DRY AND WET; SHOCK TEST ON PARTICLE SIZES 8/2 IN CONFORMITY WITH GERMAN SPECIFICATIONS AND THE "RITZ-TEST" (PENETRATION DEPTH OF A ROTATING SPIKE UNDER APPLIED SURCHARGE). THE RESULTS FOR THE VARIOUS PARTICLE SIZES ARE ONLY COMPARABLE WITH EACH OTHER TO A LIMITED EXTENT. THE LOS ANGELES TEST AND THE CRUSHING TEST DESCRIBE FUNDAMENTALLY THE TOUGHNESS OF THE MATERIAL AND THEREFORE PROVIDE SIMILAR RESULTS. THE "RITZ-TEST" DETERMINES THE HARDNESS OF THE CONSTITUENT MINERALS OF THE STONE. SHOULD THE PROHIBITION OF STUDDED TYRES NOT COME ABOUT, THE "RITZ-TEST" PROVIDES A USEFUL ADDITION TO THE EXISTING REQUIREMENTS AND TEST PROCEDURES.

  • Authors:
    • KRZEMIEN, R
  • Publication Date: 1977

Language

  • German

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01292817
  • Record Type: Publication
  • Source Agency: Bundesanstalt für Straßenwesen (BASt)
  • Files: ITRD
  • Created Date: Nov 21 2010 3:43AM