Paper 121 EFFECT OF GRANULATED BLAST FURNACE SLAG ON THE DURABILITY Title:

Paper 121
EFFECT OF GRANULATED BLAST FURNACE SLAG ON THE DURABILITY
Title:
OF SELF COMPACTED CONCRETE IN DIFFERENT ENVIRONMENTS
slag
hot climate
Author
curing
keywords:
strength
durability
Self-compacting concrete (SCC) is a fluid concrete which is characterized by its high
volume of paste content and the presence of different mineral additions such as ground
granulated blast furnace slag (GGBFS), natural pouzzolana and metakoalin. The
performance of SCC in moderate climate is well investigated. However, few studies
are available on the effect of hot and dry environment. North Africa and the Middle
East regions are characterized by a hot climate environment and there is need to
investigate the effect of local hot environment on the performance of SCC. This paper
reports the results of an experimental study conducted to evaluate the effect of GGBFS
and initial water-curing period on the performance of SCC. Cement was substituted by
blast furnace slag by weight at two different levels of substitution (15% and 25%).
Abstract:
Concrete specimens were stored either in a standard environment (T=20 °C, RH =
100%) or in the open air in the north of Algeria during the summer period (T= 35 to
40 C° and RH=100%) after an initial humid curing period of 3, 7 or 28 days.
Compressive strength at 28 and 90 days, water capillary, sorptivity, water permeability
and porosity were investigated. The increase in the substitution level of slag from 15
to 25% resulted in a compressive strength at 28 days comparable to that of cement
without addition, irrespective of the period of curing. Conservation of specimens in the
open air contributes to the physico-chemical changes which result in an increase in the
porosity, water permeability and capillary absorption compared to that stored in the
fresh water.
Authors
Web
first name last name email
country organization
corresponding?
site
university of
Said
Kenai
[email protected]
Algeria
✔
blida
University of
Walid
Yahiaoui
Algeria
Blida1
University of
Menadi Belkacem [email protected] Algeria
✔
Blida1