Heat of hydration and strength development in high-performance concrete

Title: Heat of hydration and strength development in high-performance concrete
Author(s): Maria Kaszynska
Paper category : conference
Book title: International RILEM Symposium on Concrete Science and Engineering: A Tribute to Arnon Bentur
Editor(s): J. Weiss, K. Kovler, J. Marchand, and S. Mindess
Print-ISBN: None
e-ISBN: 2912143926
Publisher: RILEM Publications SARL
Publication year: 2004
Nb references: 14
Language: English

Abstract: The paper deals with the effect of concrete maturing conditions on early age cracking, due to thermal and shrinkage stress. This is a concern about high performance concrete subjected to higher temperatures induced by exothermic hydration, and the effect of increased temperatures on the strength growth as well as volumetric changes in the initial stage of setting and hardening. Tests were carried out to determine the hydration heat of cement binders with pozzolanic additives and chemical admixtures. The results are presented for the cement paste specimens hardened in a calorimetric apparatus under isothermal conditions as well as concrete specimens with the same w/b ratio as those made of cement paste and hardened in calorimetric apparatus under adiabatic conditions. The purpose of the presented research is to determine the relationship between the amount and kinetics of heat generation and the early age compressive strength of high performance concrete cured in a real structure, with continuously changing concrete temperature.

Online publication: 2004-03-25
Classification: Driving Forces
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143926.023