الفهرس 
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Abstract
The SCC is a highly flowable, non-segregating concrete that can spread in place, compacted into every corner of a formwork, purely by means of its own weight and without the need for vibrating compaction by reducing the water to powder ratio and adding super plasticizer. Shale is a classic sedimentary rock and it is the name given to rock that has mostly clay-sized particles (less than 1/256 millimeter in diameter). Shale also has the individual property of breaking along surface planes, because the flat clay minerals in the shale separate easily along their flat surfaces, it is usually gray color. Tafla is a local term widely used in geotechnical engineering practices for such range of soil material. -Research scope: Studying the effect of using a new type of coarse aggregate (Burned shale) on fresh and hardened concrete properties. -Research objective: Produce high-performance self compacting concrete by using a new type of coarse aggregate (Burned shale) and locally available materials in our region such as sand, silica fume and limestone powder. Study the fresh properties and hardened properties of burned shale concrete. Study the performance of burned shale concrete under influence of a solution of sodium sulphate on hardened properties. -Steps study: Tests were carried out on the material used in this study to determine the chemical and physical properties of these materials, the mixes were casted with different ratios to study effect of a new type of coarse aggregate (burned shale) and cement content on the fresh and hardened concrete. -Conclusions: The increase in temperature of burn of shale lead to decrease fresh SCC properties. The compressive strength increase by increase in temperature of burn in formation coarse aggregate (shale), so The best temperature of burn is 700 oC and 1000 oC. Effect of sulphates attacking on compressive strength at 700 oC and at 1000 oC curing by solution of sodium sulphate give compressive strength less than curing in water and at 500 oC curing by solution of sodium sulphate give nearly the same compressive strength curing in water.