Size effect in concrete structures and influence of loading rate

Zdenek P Bazant*, Ravindra Gettu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

The size effect law models the influence of the dimensions of the structure or specimen on the failure stress. This model can be used to quantify the brittleness of failure, and determine material fracture parameters. Recent applications of the method are reviewed. Furthermore, results from an experimental investigation of the influence of loading rate on size effect and fracture behavior, in the static regime, are presented and discussed. The size effect on the fracture of concrete increases significantly with increasing time to failure. It also appears that as the loading rate decreases, the effective process zone length decreases, implying increase in the brittleness. The fracture toughness also decreases with increasing time to failure, explaining the usually observed decrease in strength.

Original languageEnglish (US)
Title of host publicationServ Durability Constr Mater Proc First Mater Eng Congr
PublisherPubl by ASCE
Pages1113-1123
Number of pages11
ISBN (Print)0872627772
StatePublished - Jan 1 1990
EventServiceability and Durability of Construction Materials - Proceedings of the First Materials Engineering Congress Part 1 (of 2) - Denver, CO, USA
Duration: Aug 13 1990Aug 15 1990

Publication series

NameServ Durability Constr Mater Proc First Mater Eng Congr

Other

OtherServiceability and Durability of Construction Materials - Proceedings of the First Materials Engineering Congress Part 1 (of 2)
CityDenver, CO, USA
Period8/13/908/15/90

ASJC Scopus subject areas

  • Engineering(all)

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