Self-compacting concrete Features, especially in the fresh phase, the necessity of using relatively high amounts of cement in this material is inevitable. High consumption of cement in addition to increasing economical costs, environmental pollution and excessive energy consumption, followed difficulties due shrinkage of concrete and increase degree of hydration, that are not favorable. Nowadays need to reduction of cement consumption by adopting various methods or replacement part of cement with material that does not jeopardize cement paste performance in terms of strength and durability everyone has been proven. In this research the feature of low cement self compacting concrete is studied.Much previous research has been done to reduce the consumption of cement, more focused on the replacement of cement with filler materials and other adhesive materials such as limestone and pozzolans. For achievement to the purposes of research, in addition to replacement part of cement with other filler materials, has also been noted to particle size distribution materials especially to optimized packing density of aggregates. In this regard among of curves and models of packing density of aggregates, has used of modified Anderson curve for achieve to the best particle size distribution and highest density. In this study first the effect of parameters such as the size of limestone powder (sizes 40 and 150 microns), the length of the fiber (6 and 12 mm), the percentage of use of polypropylene fiber (0.05, 0.1, 0.15 and 0.2 volumetric weight percent of fiber), the percentage of volumetric replacement of natural zeolite with cement (15, 20 and 25 per cent) and the distribution modulus of aggregate in modified Anderson curve (0.2, 0.4, 0.3, 0.25 and 0.5) on the fresh and hardened properties of self compacting mortar has been studied. Then flexural and compressive samples of concrete based on optimum mixing of the mortar designs resulting from the first step of research built and has been tested. In study of the properties of fresh mortar, mini slump flow and mini V-funnel test and for self compacting concrete, slump flow tests, T50 test, v-funnel and visual stability index (VSI) has been examined. The results of tests in this research shows that suitable distribution modulus of aggregate for achievement to desirable fresh and hardened properties in self compacting concrete is in the range of 0.25-0.3. Concrete made on the basis of aggregate distribution modulus equal 0.5 show suitable hardened and weak fresh properties. As well as in some cases bleeding and particle segregation observed. Self compacting concrete containing 0.1 percent polypropylene fibers has more flexural and compressive strength than concrete without fiber. Replacing 15% of cement volume with zeolite increase compressive and flexural strength of self compacting concrete though the slump flow of concrete containing zeolite and fiber reduce and concrete viscosity increases. In this research, reduction of self compacting concrete powder down to 300 kg per cubic meter also is studied. The results of this part of research show that in samples with the amount of powder less than 400 kg, the fresh properties of self-compacting concrete well not respect and to preserve the properties of concrete within acceptable and standards scopes, proper use of water and super plasticizer, is necessary. Key Words: Self compacting concrete, Fiber, Zeolite, Modified Anderson curve, Aggregate Optimum Packing Density