Creep and shrinkage of high-strength self-compacting concrete: experimental and analytical analysis

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Aslani, F (Author) Other; Lino Maia (Author) FEUP

Journal

Title: Magazine of Concrete Research

Vol. 65

Pages: 1044-1058

ISSN: 0024-9831

Publisher: ICE Publishing Ltd.

Indexing

ISI Web of Knowledge - 26 Citations

Scopus - 31 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering > Concrete engineering

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-006-805

DOI: 10.1680/macr.13.00048

Abstract (EN): In the present paper, a numerical and experimental study about creep and shrinkage behavior of a high strength self-compacting concrete is performed. Two new creep and shrinkage prediction models based on the comprehensive analysis on the available models of both conventional concrete and self-compacting concrete are proposed for high strength self-compacting concrete structures. In order to evaluate the predictability of the proposed models, an experimental program was carried out. A concrete which develops 60 MPa within 24 h was used to obtain experimental results. Several specimens were loaded: (i) at different ages and (ii) with different stress-to-strength ratios. Deformation in non-loaded specimens was also measured to assess shrinkage. All specimens were kept under constant stress during at least 600 days in a climatic chamber with temperature and relative humidity of 20 degrees C and 50%, respectively. Results showed that the new models were able to predict deformations with good accuracy, although provided deformations overestimated slightly.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15