الفهرس 
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Abstract
Concrete has a good reputation for fire resistance as it has a low thermal
conductivity and is non-combustible. It finds wide applications in buildings and other
built infrastructure, where fire safety is one of the primary considerations. In recent
years, self-compacting concrete (SCC) is a new generation of concrete. that can be
compacted under its own weight without the need of external vibration. SCC is being
widely used in place of normal strength concrete (NSC), due to significant economical,
architectural, and structural advantages. SCC can provide as compared to conventional
NSC. With the increased use of SCC, concern has developed regarding the behavior of
such concrete under fire exposure. Proper understanding of the effects of high
temperatures on the properties of SCC is necessary to ensure the safety of buildings
during fire. The fire resistance of concrete structural members is governed by thermal
and mechanical properties of constituent concrete.
The main objective of this investigation was to study the effect of using mineral
admixtures; ground blast furnace slag (GBFS) and ground burned clay bricks (GCB),
on the fresh and hardened properties of SCC after exposed to elevated temperatures.
The present work can be largely divided into two parts.
The first part was concerned with studying the effect of using local wastes mineral
admixtures on the fresh and hardened properties of SCC at room temperature. Two
types of wastes powder, GBFS, GCB and combinations of them were used as a partial
replacement of cement content by 30% by weight. Five mixes were investigated
through the present experimental program. The first mix was control mix without any
mineral admixture. While 30% of cement weight was replaced by GBFS in the second
mix. In the third mix, 30% of cement weight was replaced by 20%GBFS+ lO%GCB.
While in the fourth mix, 30% of cement weight was replaced by I O%GBFS+ 20%GCB.
In the fifth mix, 30% of cement weight was replaced by 30% GCB. The fresh
properties of SCC were evaluated such as; filling, passing and segregation properties.
Also. the 28 days hardened properties of SCC mixes such as; the compressive, splitting
tensile and flexural strengths were measured at room temperature.