Investigating Durability Properties of Binary and Ternary Self-Consolidating Concrete Mixtures in Simulated Marine Environement (Persian Gulf)

The performance of binary and ternary self-consolidating concrete (SCC) samples immersed in Persian Gulf simulated water including compressive strength, electrical resistance, bulk water absorption, total voids and chloride ions penetration were investigated. Portland cement was partially replaced with 8, 20, and 50% (by mass) of silica fume, metakaolin and slag, respectively. In addition, ternary blends containing the mentioned percentages of metakaolin and silica fume as well as slag and metakaolin were cast. The water to binder ratio was considered 0.45. The results indicated the improvement in the performance of immersed binary and ternary SCC samples compared with control samples. SCC containing the studied supplementary cementing materials showed better performance compared to the plain SCC when immersed in sea water from the view point of resistance against chloride ions attack. The best performance was arrived to the ternary SCC containing metakaolin and silica fume. The samples containing slag did not perform well in the Persian Gulf exposure which can be related to the poor quality of the studied slag.