INFLUENCE OF CONCRETE TECHNOLOGICAL AND VIBRATION PARAMETERS ON THE COMPRESSIVE STRENGTH OF CONCRETE

EINFLUESSE DER BETONTECHNOLOGISCHEN UND RUETTELTECHNISCHEN PARAMETER AUF DIE BETONDRUCKFESTIGKEIT

THE LACK OF A CONSISTENT THEORY OF CONCRETE COMPACTION MEANS THAT THE FACTORS GOVERNING THE ACHIEVEMENT OF HIGH COMPRESSIVE STRENGTHS IN CONCRETE BLOCKS ARE IN THE MAIN DETERMINED EMPIRICALLY. THIS PROBLEM GAVE RISE TO THE SYSTEMATIC INVESTIGATION OF THE FACTORS WHICH INFLUENCE THE COMPRESSIVE STRENGTH OF CONCRETE. AS THE GRAPHICAL EVALUATION OF THE TEST RESULTS SHOWS, THE OPTIMUM COMBINATION FOR CONCRETE PAVING BLOCKS MADE WITH AN EXTREMELY DRY CONCRETE MIX CONSISTS OF A VIBRATING SYSTEM HAVING A MASS ENERGY OF 20 CMKP AND A FREQUENCY OF 100 HZ, AND FROM A CONCRETE TECHNOLOGICAL ASPECT A MIX CONSISTING OF THREE SEPARATE AGGREGATE FRACTIONS AND HAVING A CEMENT CONTENT OF 320 KG/M3. THE TESTS RESULTED IN THE DEVELOPMENT OF A NEW AND VERSATILE VIBRATION EQUIPMENT WITH A CHOICE OF FREQUENCIES OF 50, 60 AND 100 HZ. THE USE OF THE NEW EQUIPMENT FOR THE CONTINUOUS PRODUCTION OF CONCRETE PAVING BLOCKS SHOWS ABOVE AVERAGE RESULTS WITH REGARD TO OPTIMUM SURFACE DENSITY AND COMPRESSIVE STRENGTH.

• Authors:
  • Bergerhof, W
• Publication Date: 1977

Language

• German

Media Info

• Pagination: 12-20
• Serial:
  • BAUSTOFFLEHRE - MATERIALPRUEFUNG
  • Volume: 3
  • Publisher: INSTITUT FUER BAUSTOFFLEHRE UND MATERIALPRUEFUNG AN DER UNIVERSITAET INNSBRUCK

Subject/Index Terms

• TRT Terms: Compaction; Compression; Concrete; Equipment; Pile driving; Pressure; Slabs; Strength of materials; Tests; Vibration; Vibratory equipment
• ITRD Terms: 3686: Compaction; 5532: Compression; 4755: Concrete; 3674: Equipment; 5412: Pressure; 3491: Slab; 5544: Strength (mater); 6255: Test; 5558: Vibration; 3630: Vibratory driving
• Subject Areas: I32: Concrete;

Filing Info

• Accession Number: 01292871
• Record Type: Publication
• Source Agency: Bundesanstalt für Straßenwesen (BASt)
• Files: ITRD
• Created Date: Nov 21 2010 3:44AM