2. OBJECTIVES
1. To compare the performance of ASTM Type-I and V when mixed with
microsilica.
2. To determine the influence of different constituents present in the hydrated
microsilica admixed concrete on some selective physico-chemical and mechanical
properties of concrete.
3. To determine the corrosion behavior of rebarred concrete containing microsilica
in chloride and seawater environment.
4. To study the chloride permeability in different microsilica added concrete mixes
and its influence on corrosion rates.
5. Evaluation of corrosion protection performance of microsilica containing concrete
by electrochemical method.
3. EXPERIMENTAL
Concrete mixes were made using ASTM Type-I (OPC) and Type-V (SRC) cement with
and without microsilica. Microsilica used in this test program were of two types,
densified and undensified, and it was supplied by Saudi Al-Amar for Trading and
Industry, Dammam. The concrete mixes were batched and mixed by M/S Al-Bassam
Global Corp. at their readymix batch plant in Al-Jubail Industrial City. The mixes were