الفهرس 
CHAPTER (1): INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The using of waste damage construction as recycled aggregates to cast concrete is one of the recent methods to decrease its bad environmental effects. This method has a positive environmental impact as well as its economic effect. The concrete cast using recycled coarse aggregates from the construction and demolition wastes as a structural concrete is considered as an economic alternative to conventional concrete. Self-curing ”SC” concrete is a concrete, which has some specific water-soluble chemicals added during the mixing to reduce water evaporation from and within the set of concrete, making it ‘selfcuring.’ The chemicals should have abilities to reduce evaporation from solution and to improve water retention in ordinary Portland cement matrix. Fire and elevated temperatures, consider as one of the factors which may affect badly the performance of concretes. Many researchers have this point to study and analyze the behavior of concretes cast using recycled aggregates to understand the effect of fire or elevated temperatures on concrete. In this research, the main objective is to study the feasibility of using the demolitions of buildings as a recycled coarse aggregate to cast self-curing concrete. The effect of elevated temperature on the recycled-aggregate selfcuring concrete is evaluated. The main variables of this study are; temperature, methods of cooling, storage time after exposure to elevated temperature. The fresh concrete properties of recycled-aggregate self-curing concrete is illustrated in the term of slump test. The main hardened concrete properties after exposure to elevated temperature are introduced in terms of compressive strength, splitting tensile, flexure, and bond tests. Based on the results of the behavior of recycled-aggregate self-curing concrete under the effect of elevated temperature, it can be concluded that using recycled aggregates ”RA” is feasible with self-curing concrete. It can use the recycled aggregate self-curing concrete ”RA-SC” in even elevated temperature by taking into consideration the loss of strength. The use of the RA-SC may consider as an alternative solution to the use of conventional cured concrete in infrastructures at desert areas. Using crushed ceramics followed by using crushed concrete as recycled coarse aggregates is effective at elevated temperature with a strength of about 95-70 % of that recorded for SC cast using dolomite as coarse aggregate.