A Methodology to Assess Robustness of SCC Mixtures

This paper highlights the importance of a robust SCC mixture for the successful introduction of this innovative technology in the concrete industry. A methodology to quantify SCC mixture robustness is also proposed. A central composite design was conducted to mathematically model influences of 5 mixture parameters and their coupled effects on deformability, passing and filling abilities and compressive strength of SCC mixtures. The target SCC mix composition, to be applied during full-scale tests in a precast factory, was selected as the central point in factorial design. The mixture parameters suggested by the Japanese SCC-designing method were adopted. The derived models were used to estimate SCC properties while mixture parameters variations were simulated based on daily fluctuations inherent from the production process. SCC robustness was assessed by measure of how frequently properties of simulated mixes fall inside acceptance intervals.

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  • Supplemental Notes:
    • Abstract reprinted with permission from Elsevier
  • Authors:
    • Nunes, Sandra
    • Figueiras, Helena
    • Oliveira, Paula Milheiro
    • Coutinho, Joana Sousa
    • Figueiras, Joaquim
  • Publication Date: 2006-12

Language

  • English

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Filing Info

  • Accession Number: 01042231
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 15 2007 6:56PM