Title: Cracks in Concrete Core Due to Fire or Thermal Heating Shock

Author(s): Lene Kristensen and Torben C. Hansen

Publication: Materials Journal

Volume: 91

Issue: 5

Appears on pages(s): 453-459

Keywords: cement pastes; concretes; cracking (fracturing); fires; heating; thermal stresses; Materials Research

DOI: 10.14359/4063

Date: 9/1/1994

Abstract:
It is shown theoretically and demonstrated experimentally that rapid heating (thermal shock) of specimens of cement paste and concrete can cause internal cracks due to stresses that develop when temperature differences between core and surface of specimens exceed 30 C (54 F) for cement paste and 50 C (90 F) for concrete.