Title: High-Performance Concrete: Early Age Cracking, Pore Structure, and Durability

Author(s): Erik J. Sellevold

Publication: Symposium Paper

Volume: 159

Issue:

Appears on pages(s): 193-208

Keywords: cement pastes; chlorides; cracking (fracturing); curing; freeze thaw durability; high-performance concretes; porosity; Materials Research

DOI: 10.14359/1382

Date: 2/1/1996

Abstract:
Practical use of high-strength concrete in Norway has shown that it is susceptible to cracking at early ages and that it normally is subjected to high curing temperatures due to high cement contents. The paper summarizes the results of a number of investigations at The Norwegian Institute of Technology and SINTEF research institute, both in Trondheim, Norway. The topics are: (1) early volume changes in the binder phase and early cracking sensitivity of high-performance concrete; and (2) the consequences of elevated curing temperatures on pore structure characteristics, permeability to chloride, and frost resistance of high- performance concrete.