Properties Assessment of Concrete Containing Sirjan Pozzolan

摘要

The possibility of using Sirjan (a city located in the west of Kerman province of Iran) Pozzolan (SP) in concrete was studied in this study. To find out the proper percentage of the cement replacement by pozzolan, a number of concrete specimens containing of 5 to 16% of pozzolan with constant water to binder ratio of 0.5 were casted and the compressive strength, flexural strength, shrinkage and expansion for different curing conditions were measured up to 365 days. The tests results show that the cement replacement by Sirjan Pozzolan (SP) caused both the quality and mechanical property alterations. Also it can be seen that the flexural strength, shrinkage and expansion of specimens increased, whereas the compressive strength decreased in initial days. Also To verify the pozzolanic mechanism, the specimens were examined by SEM.