Comprehensive concrete fracture tests: Description and results

Christian Hoover, Zdeněk P. Bažant, Jan Vorel, Roman Wendner, Mija H. Hubler

Research output: Contribution to journalArticle

73 Scopus citations

Abstract

Although hundreds of concrete fracture tests exist, their evaluation is ambiguous because they have limited ranges of specimen size, initial notch depth and postpeak response, and refer to different concretes, different batches of concrete, different ages, different environmental conditions, different loading rates and test procedures, and different specimen types. Presented is an experimental investigation of unprecedented comprehensiveness and low scatter, using specimens made from one batch of concrete. It includes: (1) notched and unnotched beams tested at virtually the same age; (2) crack depths ranging from 0% to 30% of beam depth; (3) a broad size range (1: 12.5); (4) tests in transition between type 1 and type 2 size effects; (5) virtually complete postpeak softening data; (6) properly correlated loading rates; and (7) complete standard characterization of the concrete used. The analysis is relegated to a follow-up paper.

Original languageEnglish (US)
Pages (from-to)92-103
Number of pages12
JournalEngineering Fracture Mechanics
Volume114
DOIs
StatePublished - Dec 1 2013
Externally publishedYes

Keywords

  • Concrete fracture
  • Flexural strength
  • Fracture testing
  • Modulus of rupture
  • Notch depth effect
  • Scaling of strength
  • Statistical scatter

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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