A COMPARATIVE STUDY OF MIX DESIGN METHODS

In this comparative study, four popular design methods are chosen and three particular aspects are included, namely, the versatility of the methods, the economy and the accuracy of their prescriptions. It is concluded that LJ Murdock's method, though relatively cumbersome, is the most flexible whereas the British Department Of The Environment (DOE) procedure, the simplest. Murdock's prescriptions are also found to be the most economical over a large strength range while the New Zealand-PCA method prevails over the remainder; the ACI method yields the most expensive mixes and the DOE's lie somewhere in between for most cases. Results from a test programme indicate that the actual strengths of the mixes prescribed by all four methods are considerably lower than the design values. This is attributable to the poorer strength quality of the locally manufactured cement. Remedial measures are suggested to make each method applicable under given conditions. The number of the covering abstract for the conference is TRIS no 394142. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0858252015
• Supplemental Notes:
  • Papers Presented during the Symposium on Concrete 1983, the Material for Tomorrow's Demands, Institution of Engineers, Perth, Australia, 20-21 October 1983.
• Corporate Authors:

  Institution of Engineers

  11 National Circuit
  Barton, A.C.T.,   Australia 
• Authors:
  • LOO, Y C
• Conference:
  • Papers Presented during the Symposium on Concrete 1983, the Material for Tomorrow's Demands, Institution of Engineers, Perth, Australia, 20-21 October 1983.
• Publication Date: 1983-8

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 18-23

Subject/Index Terms

• TRT Terms: Accuracy; Aggregates; Alternatives analysis; Cement; Concrete; Conferences; Costs; Errors; Evaluation and assessment; Methodology; Mix design; Strength of materials; Water; Workability
• Uncontrolled Terms: Concrete strength
• ITRD Terms: 4577: Aggregate; 4758: Cement; 4755: Concrete; 8525: Conference; 224: Cost; 6440: Error; 9020: Evaluation (assessment); 9102: Method; 4714: Mix design; 5544: Strength (mater); 4355: Water; 5941: Workability
• Subject Areas: Finance; Geotechnology; Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00394144
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 0-85825-201-5
• Report/Paper Numbers: 83/12
• Files: ITRD, TRIS, ATRI
• Created Date: Aug 31 1985 12:00AM