الفهرس 
CHAPTER (1): INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
A Self-compacting concrete (SCC) is the one that can be placed in the form and can go through obstruction by its own weight and without the need of vibration.
The main aim of this research was study the feasibility of enhancing the durability of self-compacted concrete ”SCC”cast using recycled aggregates as recycled-aggregate self-compacted concrete ”RA-SCC ”. The durability of RA-SCC was studied in terms of sulfates and chlorides attack for different periods. Also, the effects of using several available enhancing materials to improve the durability of RA-SCC were studied.
The experimental investigation was divided into two stages. The first was performed to obtain the main fresh and hardened properties. The second was conducted to study the durability enhancement by using three improving materials. Durability was evaluated under sulfate attack and chlorides attack. The fresh properties were obtained mainly in the term of slump flow test. The hardened properties were introduced in terms of compressive, splitting tensile, flexural, and bond strength. Test results indicated that using suggested enhancing materials improve the recycled aggregate self-compacted concrete. Using the waterproofing powder improved the durability against sulfates and chlorides compared to other suggested materials. Based on this study, self-compacting concrete cast using recycled-aggregate can be improved by using the suggested improving materials with satisfied durable characteristics under the attack of the sulfate and chloride (in the range of this study).