Influence of hydration reaction on engineering properties of hardening concrete

Title: Influence of hydration reaction on engineering properties of hardening concrete
Author(s): G. De Schutter
Paper category : journal
Serial title: Concrete Science and Engineering
Abreviated Serial title: Concr. Sc. Eng.
ISSN: 1295-2826
Publisher: RILEM Publications SARL
Volume: 4
Issue: 15
Issue date: 2002-09-01
Publication year: 2002
Pages: 447 - 452
Total Pages: 6
Nb references: 20
Language: English

Abstract: The engineering properties of hardening concrete
depend on the microstructure of the cementitious material,
and thus on the amount of hydration products formed.
A determining measure for the amount of hydration
products is the amount of reacted cement, which can be
described by means of the degree of hydration. An
extended experimental program was carried out in order
to verify the influence of the degree of hydration on the
engineering properties of hardening concrete. The
instantaneous and time dependent mechanical behaviour
was investigated experimentally on hardening concrete
with different compositions. Portland cement as well as
blast furnace slag cement were considered. Furthermore,
the fracture energy of hardening concrete was investigated,
using a deformation controlled three-point bending
test. It was concluded that the degree of hydration is a
fundamental parameter for the description of hardening
concrete, including time-dependent mechanical behaviours
and fracture properties. Based on the experimental
results and on a phenomenological view of hydration,
engineering models were developed, enabling an accurate
simulation of the behaviour of early-age concrete (i.e. first
28 days).

Online publication: 2002-06-20
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00