RHEOLOGICAL PROPERTIES OF CEMENT PASTES - EFFECT OF ADDITIVES

The effects of plasticizers on cement paste are as follows: (1) experimental results indicate the existence of a critical shear rate; (2) by using a particular vibration mixing method, reversible flow curves can be produced after mixing times which increase with decrease in w/c ratio of the paste; (3) at lower shear rates, the results indicate that a cement paste behaves as an elastic solid and bleeding occurs; (4) under the influence of a polymer additive, the paste assumes the qualitative rheological properties of the additive; (5) for the range of shear rates considered. The apparent effect of the additive is to decrease the workability of the paste. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00375225
• Corporate Authors:

  ASBL Silicates Industriels

  32 rue de Malplaquet
  B-7000 Mons,   Belgium 
• Authors:
  • Jones, T
  • Taylor, S
• Publication Date: 1978

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 83-88
• Serial:
  • Silicate Industriels
  • Volume: 43
  • Issue Number: 4/5
  • Publisher: ASBL Silicates Industriels
  • ISSN: 0037-5225

Subject/Index Terms

• TRT Terms: Admixtures; Bleeding (Pavements); Cement paste; Flow; Fluid dynamics; Mix design; Plasticizers; Polymers; Rheological properties; Rheology; Shear rate; Shear strength; Vibration; Workability
• Old TRIS Terms: Flow curve
• ITRD Terms: 4736: Admixture; 4917: Bleeding (concrete/bitumen); 4767: Cement paste; 5430: Flow (fluid); 4714: Mix design; 4725: Plasticizer; 7481: Polymerization; 5442: Rheology; 5531: Shear; 5558: Vibration; 5941: Workability
• Subject Areas: Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00324387
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Oct 28 2003 12:00AM