A master's thesis at the College of Engineering at the University of Basrah discussed an experimental study of the punching shear resistance of recycled reactive crushed concrete slabs.
The thesis submitted by student Sarah Farid Muhammad addressed the topic
An experimental study and analysis of the results of both the mechanical properties of samples and the punching shear behavior of crushed concrete slabs and recycled reactive crushed concrete.
A series of sixteen mixtures of reactive crushed concrete and recycled reactive crushed concrete were prepared and tested. A reference mix was tested without recycled aggregate.
In addition, three mixtures of recycled reactive crushed concrete were examined using recycled concrete brick aggregate.
Fourteen roofs were cast and tested.
The letter concluded a decrease in compressive, bending and tensile strength with increasing particle size. It was observed that the effect of increasing the particle size is more pronounced in reducing the compressive strength at
Comparing it to the bending and tensile strength for the same particle size and replacement ratio.