A methodology to assess robustness of SCC mixtures

• Type: Article in International Scientific Journal
• Date: 2006

Authors

Sandra Nunes (Author) FEUP; Helena Figueiras (Author) Other; Paula Milheiro Oliveira (Author) FEUP; Joana Sousa Coutinho (Author) FEUP; Joaquim Figueiras (Author) FEUP

Journal

Title: Cement and Concrete Research

Vol. 36 No. 12

Pages: 2115-2122

ISSN: 0008-8846

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 40 Citations

ISI Web of Science

Scopus - 52 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Physical sciences > Mathematics > Computational mathematics > Computational models ; Technological sciences > Engineering > Civil engineering > Concrete engineering

Other information

Authenticus ID: P-004-FKT

DOI: 10.1016/j.cemconres.2006.10.003

Abstract (EN): The present paper highlights the importance of a robust SCC mixture for the successful introduction of this innovative technology in the concrete industry. A methodology to quantity SCC mixture robustness is also proposed. A central composite design was carried out to mathematically model the influence of five 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 to be the central point in the 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 production process. SCC robustness was assessed by measuring how frequently the properties of simulated mixes fall inside the acceptance intervals.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8