Experimental determination of early age fracture toughness and fracture process zone size in cement pastes

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

1 Scopus citations

Abstract

The micro-scratch test and its analysis continue to grow in the fields of material science and engineering, particularly as it relates to materials at smaller scales being used for fracture resistance. In this study, white cement paste specimens were cast, extracted and their hydration was stopped at desired curing ages. A Rockwell probe was used to scratch the surface of the specimens to determine the fracture toughness at that age. Classical Brazilian split-cylinder tests were also performed to compliment the scratch tests. The excellent convergence of the raw data allows the increase of fracture toughness and splitting strength over time to be determined. Finally, Irwin's characteristic length, which is proportional to the fracture process zone size, is determined and shown to asymptotically reach a constant size.

Original languageEnglish (US)
Title of host publicationMechanics and Physics of Creep, Shrinkage, and Durability of Conrete
Subtitle of host publicationA Tribute to Zdenek P. Bazant - Proceedings of the 9th Int. Conf. on Creep, Shrinkage, and Durability Mechanics, CONCREEP 2013
PublisherAmerican Society of Civil Engineers (ASCE)
Pages364-371
Number of pages8
ISBN (Print)9780784413111
DOIs
StatePublished - 2013
Externally publishedYes
Event9th International Conference on Creep, Shrinkage, and Durability Mechanics: A Tribute to Zdenek P. Bazant, CONCREEP 2013 - Cambridge, MA, United States
Duration: Sep 22 2013Sep 25 2013

Publication series

NameMechanics and Physics of Creep, Shrinkage, and Durability of Conrete: A Tribute to Zdenek P. Bazant - Proceedings of the 9th Int. Conf. on Creep, Shrinkage, and Durability Mechanics, CONCREEP 2013

Other

Other9th International Conference on Creep, Shrinkage, and Durability Mechanics: A Tribute to Zdenek P. Bazant, CONCREEP 2013
CountryUnited States
CityCambridge, MA
Period9/22/139/25/13

ASJC Scopus subject areas

  • Mechanics of Materials
  • Building and Construction

Fingerprint Dive into the research topics of 'Experimental determination of early age fracture toughness and fracture process zone size in cement pastes'. Together they form a unique fingerprint.

Cite this