ULTRASONICS FOR THE CONTROL OF CONCRETE MANUFACTURING TECHNOLOGY

ULTRASCHALL ZUR KONTROLLE DER HERSTELLUNGSTECHNOLOGIE DES BETONS

THE RATE OF SOUND PROPAGATION IN THE ULTRASONIC TEST IS A REFLECTION OF THE ELASTICITY OF THE CONCRETE. IF THE SOUND SPEED IS DETERMINED CONTINUOUSLY DURING THE SETTING PROCESS, THE INFORMATION OBTAINED CAN BE USED TO ASSESS THE INCREASE IN STRENGTH. THUS IT CAN BE PROVED THAT DURING VIBRATION THE STRENGTH DECREASES INITIALLY (THIXOTROPIC FLOW OF THE CEMENT PASTE), AND THEN INCREASES (COMPACTION). THE OPTIMUM VIBRATION TIME CAN THEREFORE BE DETERMINED. MOREOVER THE POINT OF TIME OF THE ONSET OF SETTING, AND THE EFFECTS OF HEAT TREATMENT OR THOSE OF HARDENING AT LOW TEMPERATURES CAN BE ESTABLISHED.

• Corporate Authors:

  VEB Autobahnbaukombinat

  Templinestrasse 19
  Potsdam,   Germany 
• Authors:
  • Pimenov, V V
  • Barkan, R D
  • Grapp, V B
• Publication Date: 1972

Language

• German

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 378-380
• Serial:
  • Bauplanung-Bautechnik
  • Volume: 26
  • Issue Number: 8

Subject/Index Terms

• TRT Terms: Cement paste; Compaction; Concrete; Concrete setting; Manufacturing; Mechanical elasticity; Physical properties; Sound; Strength of materials; Temperature; Thixotropy; Ultrasonic tests
• Uncontrolled Terms: Concrete properties; Setting time
• ITRD Terms: 4755: Concrete; 9013: Development; 4722: Hardening; 3647: Manufacture; 5544: Strength (mater); 6255: Test; 5934: Thixotropy; 5414: Time; 6739: Ultrasonic; 3630: Vibratory driving
• Subject Areas: Construction; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00080563
• Record Type: Publication
• Source Agency: Bundesanstalt für Straßenwesen (BASt)
• Files: ITRD, TRIS
• Created Date: Mar 26 1975 12:00AM