CONCRETE DESIGN: PROPORTIONING AGGREGATE TO FINISH THE PROCESS

This article examines the cement content of concrete mixtures by dividing the water content by the water-cement ratio. A two-step process for proportioning the cement paste (water content developed from the desired workability coupled with aggregate gradation, followed by cement content), carried out in this specific sequence, is necessary to ensure that the proposed mix meets the contractor's requirements for workability while meeting the designer/specifier's need for concrete strength and permeability. Workability improvements may be achieved by adjusting aggregate grading or the coarse/fine/intermediate blend. Measurements of unit weight and yield are useful in confirming that aggregate properties are correct and that batching is accurate.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10519629
• Supplemental Notes:
  • Page Range: pp 52-54, 56
• Corporate Authors:

  Civil Engineering News, Incorporated

  1255 Roberts Boulevard, Suite 230
  Kennesaw, GA  United States  30144
• Authors:
  • Hover, K C
• Publication Date: 1998-11

Language

• English

Media Info

• Features: Figures;
• Pagination: 4 p.
• Serial:
  • Civil Engineering News
  • Volume: 10
  • Issue Number: 10
  • Publisher: Civil Engineering News, Incorporated
  • ISSN: 1051-9629

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregate mixtures; Cement content; Cement paste; Concrete; Concrete aggregates; Concrete mixing; Mix design; Permeability; Proportioning; Strength of materials; Water in concrete; Workability
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00759757
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 15 1999 12:00AM