Effect of Using Different Supplementary Cementitious Materials in High Strength Self Compacting Concrete

摘要

High strength self-compacting concrete (HSSCC) is one of the most significant recent advances in concrete technology. Replacing cement with different supplementary cementitious materials has a good impact on the environment according tothe reducing of the generated amount of carbon dioxide. Supplementary materials can be usednot only as a cement replacement but also as a filler to help in reducing the total voids content in concrete. Replacing cement with supplementary cementitiousmaterialwasaffected the workability and strength of concrete and modify the microstructure of the matrix.An experimental investigation wascarried out to study the effect of replacing cement with different contents of silica-fume, fly ash and marble powder or with mix of two types of these supplementary materials. The rapid chloride penetration test (RCPT) was conducted as an indicator for concrete permeability and durability.Inaddition,the micro-structural analysis using SEM helped in confirming the compressive strength results.