THE WORKABILITY OF NO-SLUMP CONCRETE FOR USE IN HOLLOW-CORE SLABS

The purpose of this paper was to determine factors affecting the workability of no-slump concrete. The investigation has been performed by compiling information available and by carrying out laboratory and full-scale tests. Equipment has been specifically designed for measuring the workability of no-slump concrete, a so-called intensive compaction tester (ic-tester). The particle shape of the aggregate used and the amounts of fines, fly ash and silica fume are the most important factors affecting the workability. The workability is reduced by a too high specific area or amount of fine aggregate, and by a too large proportion of crushed aggregate. Because the manufacturing process requires no-slump concrete to be used, its workability can be improved only to a very small extent by adding water. Fly ash or silica fume has been added to improve the workability of fresh concrete. For the covering abstract see IRRD 812060.

• Corporate Authors:

  NORSKE BETONGFORENING

  KRONPRINSENSGATE 17
  Oslo 2,   Norway 
• Authors:
  • Juvas, K
• Publication Date: 1987-12

Language

• English

Media Info

• Pagination: p. 121-30
• Serial:
  • Nordic Concrete Research
  • Issue Number: 6
  • Publisher: Nordic Concrete Federation

Subject/Index Terms

• TRT Terms: Aggregates; Concrete; Development; Fly ash; Measurement; Measuring instruments; Size; Workability
• ITRD Terms: 4577: Aggregate; 6155: Apparatus (measuring); 4755: Concrete; 9013: Development; 9014: Dimension; 4580: Fly ash; 6136: Measurement; 5941: Workability
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00481181
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 30 1989 12:00AM