Maturing Concrete – Designing for anchorage before 28 days.

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Maturing Concrete – Designing for anchorage before 28 days.

Author(s):

Publication: CIA

Volume:

Issue:

Appears on pages(s):

Keywords:

Date: 2/13/2011

Abstract:
This paper explores the issue of utilising concrete properties, primarily strength, well before the concrete reaches the accepted design plateau at 28 days - particularly early strengths in the range from 8MPa to 15MPa. Current trends in construction, driven largely by the popularity of precast concrete and the savings in construction-time it offers, indicate that this topic is already being exploited yet any supporting research does not appear to extend much beyond established concrete material data relating to predictable hydration / strength gain behaviour. Accordingly, there seems to be even less guidance from current Australian Standards relating to either testing or design, specifically AS3600 (Concrete Structures), AS3850 (Tilt-up Concrete Construction). In-house research by the authors of existing anchor systems in typical concrete elements suggests some useful & reliable conclusions to assist designers and builders in the absence of established technical standards so that anchorage into maturing concrete can be exploited safely with confidence.


Concrete Institute of Australia, International Partner Access.

View Resource »