CONCRETE SETTS FOR TRAFFIC AND RECREATION ZONES

BETONPFLASTERSTEINE FUER VERKEHRS- UND ERHOLUNGSZONEN

MASS PRODUCTION, LAYING BY SKILLED WORKFORCE, EASY, QUIET METHODS OF RE-LAYING WITHOUT WASTE ARE GIVEN AS THE ADVANTAGES OF CONCRETE SETTS. IN DIN 18501, HOWEVER, ONLY SQUARE AND RECTANGULAR STONES OF THICKNESSES EQUAL TO OR GREATER THAN 80 MM ARE COVERED. BN 550 IS PRESENTED. FOR 80 MM THICK STONES THIS GIVES A MINIMUM STRENGTH OF 636 KP/SQ CM. AS THE STANDARD COMPRESSION STRENGTH TESTS MAY BE CARRIED OUT ON COMPLETE SETTS, ON CUT-OUT SPECIMENS AND BETWEEN PRESSURE PLATES, THE COMPRESSIVE STRENGTH OBTAINED CAN ONLY BE COMPARED TO A LIMITED DEGREE. UNTIL THE STANDARD IS REVISED, THEREFORE, IN SUPPLY CONTRACTS THE METHOD OF TESTING HAS TO BE AGREED. FOR AREAS SUBJECTED TO LIGHT TRAFFIC, SETTS LESS THAN 80 MM THICK CAN CURRENTLY BE TESTED IN ACCORDANCE WITH THE REGULATIONS FOR GENERAL NON-STANDARD CONCRETE PRODUCTS, FOR WHICH A BENDING STRENGTH OF MORE THAN 60 KP/SQ CM IS NECESSARY. DETAILS ARE GIVEN OF HOW SUCH FACTORS AS SKIDDING RESISTANCE, FROST AND DE-ICING SALT RESISTANCE AND PROTECTION AGAINST THE EFFECTS OF OTHER AGGRESSIVE MATERIALS CAN BE ACHIEVED. FURTHER DATA ARE GIVEN FOR THE TOTAL CONSTRUCTION PROCESS IN THE "SPECIFICATION FOR THE PRODUCTION OF CONCRETE SETTS" ISSUED BY THE FORSCHUNGSGESELLSCHAFT. A VARIETY OF SKETCHES AND PHOTOGRAPHS ILLUSTRATE NUMEROUS TYPES INCLUDING EDGING STONES AND CURVED STONES.

Language

  • German

Media Info

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Filing Info

  • Accession Number: 01302751
  • Record Type: Publication
  • Source Agency: Forschungsgesellschaft für Straßen- und Verkehrswesen (FGSV)
  • Files: ITRD
  • Created Date: Nov 21 2010 8:48AM