. Workability of SCC is described in terms of filling ability, passing ability, and stability, and is characterized by specific testing methods. Obtaining these features makes SCC a mix with less coarse aggregates and more binder than regular concrete. The main goal of this research was to study the effect of pozzolans on the durability of SCC in the sulfate environment. Sulfate effects on SCC could be studied by measuring the variation of compressive strength, volume and weight of specimens. Thus to control the effect of magnesium sulfate consistency on the durability of concrete two solution of 5% and 10% of magnesium sulfate were made. Twenty two SCC mixtures with water to cementitious materials ratio (W/CM) of 0.38 were prepared using single and binary binders. The mixtures were divided into two groups. These two groups of mixtures contained 0 and 0.1% poly propylene fibers (PP) by volume, respectively. The single binder was made by 100% type I Portland cement. The binary binders contained silica fume (5%,10%,15%), metakaolin (5%,10%,15%) and Zeolite (5%,10%,15%) that were replaced with the same weight of cement. Difference between compressive strength, volume and weight after 3, 6 and 9 months of specimens those were immersed in the 5% and 10% magnesium sulfate with the specimens those were immersed in water were noticed. Also some specimens were subjected to wet and dry cycles to study the durability of the concrete under wet and dry condition. Microstructure images of four different types of concretes, which had 10% silica fume, 10% metakaoline, 10% zeolite and without pozzolan were observed by SEM test. Also the EDX analyses were carried out to show the ingredients of four different concretes after being nine months in the 10% sulfate magnesium solution. To perform a statistics analysis of the data which had obtained from the experimental program, variance analysis was carried out by using SAS software. Results of the analysis showed that using silica fume would reduce the durability of concrete in the magnesium sulfate environment. It is also concluded that both metakaoline and zeolite would increase durability of the concrete but the effect of metakaoline is more than that of zeolite. It was seen that using PP fibers would reduce the volume increase and weight decrease of the specimens were immersed in the magnesium sulfate solution. Effect of the silica fume, metakaoline and zeolite on the fresh and mechanical properties of the SCC specimens with and without PP fibers is also considered in this research. The slump flow, T50 and V-funnel test were carried out for determining the properties of fresh concrete. It was seen that using VMA is necessary for gaining the stability of metakaoline concrete. Zeolite would decrease the fluidity and increase the stability of the SCC and PP fiber would increase its viscosity.