SUPERPLASTICIZED HIGH-WORKABILITY CONCRETE SOME PROPERTIES IN THE FRESH AND HARDENED STATES

The paper describes the first stage of a wide-ranging investigation into superplasticized high-workability concrete. The properties studied were, in the fresh state, flow characteristics, stability (bleeding and segregation) and air content and, in the hardened, compressive strength (both early and subsequent up to 90 days) and drying shrinkage. A ranking order of the superplasticizers used was obtained, together with proposals on the flow and segregation behaviour in response to variations in cement content and sand grading. The bleeding of the superplasticized high-workability concrete was found to be higher, and the air content generally lower, than for the corresponding normal concrete. Compressive strength was found to be generally of the same order as that of normal concrete, whilst drying shrinkage was higher for the superplasticized high-workability concrete. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00249831
• Corporate Authors:

  Cement and Concrete Association

  Wexham Spring
  Slough SL3 6PL, Buckinghamshire,   England 
• Authors:
  • Dhir, R K
  • Yap, AWP
• Publication Date: 1983-12

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 214-228
• Serial:
  • MAGAZINE OF CONCRETE RESEARCH
  • Volume: 35
  • Issue Number: 125
  • Publisher: Thomas Telford Limited
  • ISSN: 0024-9831

Subject/Index Terms

• TRT Terms: Air conditioning systems; Air entrained concrete; Bleeding; Bleeding (Pavements); Cement; Cement content; Compression; Compressive strength; Concrete; Concrete hardening; Drying; Fresh concrete; Mechanical analysis; Mix design; Motorist aid systems; Physical properties; Plasticizers; Rheology; Sand; Shrinkage; Stability (Mechanics); Strength of materials; Superplasticizers; Workability
• Uncontrolled Terms: Concrete properties; Hardened concrete; Particle size distribution; Segregation
• Old TRIS Terms: Concrete shrinkage; Highway user services
• ITRD Terms: 4742: Air entrained concrete; 4917: Bleeding (concrete/bitumen); 4758: Cement; 5532: Compression; 4755: Concrete; 5184: Drying; 4750: Fresh concrete; 4714: Mix design; 6200: Particle size distribution; 4725: Plasticizer; 5442: Rheology; 4105: Sand; 5261: Segregation (mater); 4743: Shrinkage; 5544: Strength (mater); 5941: Workability
• Subject Areas: Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00386602
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 30 1991 12:00AM