A methodology to assess robustness of SCC mixtures

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Sandra Nunes (Autor) FEUP; Helena Figueiras (Autor) Outra; Paula Milheiro Oliveira (Autor) FEUP; Joana Sousa Coutinho (Autor) FEUP; Joaquim Figueiras (Autor) FEUP

Revista

Título: Cement and Concrete Research

Vol. 36 Nº 12

Páginas: 2115-2122

ISSN: 0008-8846

Editora: Elsevier

Indexação

ISI Web of Knowledge - 40 Citações

ISI Web of Science

Scopus - 52 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia civil

CORDIS: Ciências Físicas > Matemática > Matemática computacional > Modelos computacionais ; Ciências Tecnológicas > Engenharia > Engenharia civil > Engenharia do betão

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8