DETERMINATION OF A LIMIT WATER/CEMENT RATIO AS A FUNCTION OF CEMENT, TO BE USED AS AN INDEX FOR EXPOSED CONCRETE

ERMILLUNG EINES ZEMENTABHAENGIGEN GRENZWASSERZEMENTWERTES ALS KENNGROESSE FUER SICHTBETON

Details are given of a method for determining the viscosity of cement paste. Based on analyses of the viscosity of cement pastes varying in water/cement ratio, a viscosity curve can be plotted for each type of cement. It was shown that, in exposed concrete structures, the viscosity of the cement paste must not fall below a limit viscosity if the formation of filaments on the surface of the exposed concrete is to be avoided. This limit viscosity corresponds to a certain water/cement ratio which is defined as the limit water/cement ratio for exposed concrete. This limit ratio is not constant for all types of cement, but is an index which is a function of the cement and which must be determined for each cement before laying begins. Other possible applications of cement paste viscosity measurements are outlined. /IRRD/

• Corporate Authors:

  Bauverlag GmbH

  Wittelbacherstrasse 10
  6200 Wiesbaden,   Germany 
• Authors:
  • Teubert, J
• Publication Date: 1969-11

Language

• German

Media Info

• Features: Figures; Photos; Tables;
• Pagination: p. 654-659
• Serial:
  • Betonwerk und Fertigteil-Technik
  • Issue Number: 1
  • Publisher: Bauverlag GmbH

Subject/Index Terms

• TRT Terms: Cement paste; Concrete; Graphics; Measurement; Viscosity; Water cement ratio
• Uncontrolled Terms: Graphical analysis
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00081894
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 22 1975 12:00AM