الفهرس 
Experimental Program
Aggregate Test Results and AnalysisOnly 14 pages are availabe for public view
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Abstract
Recently, Egypt witnessed a boom in the construction of road networks. This boom requires the availability of road construction materials, the most important of which is natural aggregates, whose production represents a great pressure on the environment. And with the availability of huge quantities of demolition and construction wastes in Egypt, began to think about the use of these wastes as an alternative to natural aggregates in the construction of roads because the use of these wastes will preserve the environment and provide the cost of roads construction. One of the most important elements of the construction and demolition waste is Recycled Concrete Aggregates (RCA). RCA has seen promising results when utilized as ordinary aggregates, base aggregates and Portland Cement Concrete (PCC) aggregates.
In this study, we examine the extent to which RCA can be used in the design of hot asphalt mixtures using Marshall mix design method. The concrete aggregate obtained from crushing the concrete cubes and beams from Concrete Laboratory at Ain Shams University and sieving to get the required sizes of aggregate particles to make locally asphalt mixtures (Type 4C and 3D) with percent (25,50,75,100) % from the percentage of course aggregate.
The performance of the asphalt mixtures has been evaluated according to the following tests: Marshall test, Loss of Stability test, Indirect Tensile Strength test and finally the Dynamic Modulus test (E*).