أرسل هذا في رسالة قصيرة: The use of municipal solid waste slag as a supplementary cementitious material and the effects of particle size on the properties of slag-derived concrete

__    __     ___     ______      ___      ______  
\ \\ / //   / _ \\  |      \\   / _ \\   /_   _// 
 \ \/ //   / //\ \\ |  --  //  | / \ ||    | ||   
  \  //   |  ___  |||  --  \\  | \_/ ||   _| ||   
   \//    |_||  |_|||______//   \___//   /__//    
    `     `-`   `-` `------`    `---`    `--`