EFFECT
OF MINERAL ADMIXTURES ON STRENGTH & DURABILITY OF FIBRE REINFORCED REACTIVE
POWDER CONCRETE
J.Thomas Britto
Dept of civil engineering
Thomasbritto3@gmail.com
ABSTRACT
Recently the High Strength Concrete (HSC) and High Performance
Concrete (HPC) have been widely used in construction projects. The construction
industries focus on how to eliminate the contraction and brittleness of high
strength concrete and high performance concrete and also how to improve the
strength of concrete. HSC and HPC is not just a simple mixture of cement, water
and aggregates. Quite often, it contains mineral components and chemical
admixtures having very specific characteristics, which impart specific
properties to the concrete. HSC and HPC lead to achieve the maximum compressive
strength of 120 to 150 MPa. At such level of strength the coarse aggregate
becomes the weakest link in concrete. In order to improve the strength and
durability of concrete by the way of removing the coarse aggregate and
employing the mineral admixtures and steel fibers is the philosophy to develop
Reactive Powder Concrete (RPC).
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