أرسل هذا في رسالة قصيرة: RECYCLED CONCRETE AS FINE AND COARSE AGGREGATES IN CONCRETE.

            ______   _____      ______    ______  
  ____     /_   _// |  __ \\   /_   _//  /_____// 
 |    \\    -| ||-  | |  \ ||   -| ||-   `____ `  
 | [] ||    _| ||_  | |__/ ||   _| ||_   /___//   
 |  __//   /_____// |_____//   /_____//  `__ `    
 |_|`-`    `-----`   -----`    `-----`   /_//     
 `-`                                     `-`