?????? ???：???? ??? ??? ???? ????? ?? ????? ???? ????? ?????? ???? ????? ?? ???? ????? ????? ???

????? ???? ???? ???? ???? ??????? ?????? ?? ???? ????? ????? ?? ??? ???? ??????? ????? ???

Raw Materials Used in Aggregates

?????? ?????? ??? ??? ??? ?? ???? ??? ???? ?????

????

???? ????? ??? ??? ??? ???? ??? ????? ?????? ??? ??? ???? ??? ?? ????? ??? ??? ??? ????? ?????? ????? ???? ?????? ???? ???? ?????? ?100 ??? 300 ?????? (MPa) ?????? ?????? ???????? ?????? ?? ????? ????? ?? ??? ??? ?? ???? ?? ????? ????? ???? ?????? ????? ?????? ?????? ??? ???? ?????? ???? ??? ???? ?????? ???? ?? ?? ??? ???? ????? ?????? ??? ?????? ????? ?????? `

basalt

?????

?????, ?????? ????? ????? ????? ???? ???? ??? ????? ???? ??????? ?????? ?????? ?????? ?????? ??? ??? ????? ???? ??? ????? ?? ????? ?? ????? ???? ??? ?????? ????? ????? ? 30 ??? 140 ?????? ?????? ?????? ???? ?? ???? ???? ????? ???? ?????? ???? ???? ?????? ???? ???? ???? ?? ??? ?? ????? ?? ????? ???? ??????? ??? ??? ???? ????? ?? ????? ?? ?? ??? ???? ????? ??????

Limestone

?????

?????, ??? ??? ??? ???, ??? ??? ???? ?? ?? ??? ?????? ????, ?????? ?? ?? ?????, ????? ?? ??? ??????? ????? ???. ?????? ????? ? 200 MPa ???? ????, ??? ???? ???? ??? ????? ??????. ?????? ?? ??? ??? ???? ????? ??? ????? ????? ?????? ?????, ??? ???? ????? ???? ?? ????? ??????? ??? ??? ?????? ????? ????? ??????. ???? ????? ????? ??? ??????? ?? ????? ?????? ???? ???????

Granite

?????

??????? ???? ???? ??? ???? ???? ???? ??? ????? ????? ??????? ???? ??? ???? ????? ????? ???? ??? ??????? ???? ?? ? 300 ?????? ????? ????? ???? ??? ?????? ?????? ???? ????? ??? ?? ???? ???? ???? ??? ???? ??? ???? ???? ??????? ???? ?????? ?????? ???? ???? ??? ???? ??? ???? ??????? ?????? ????? ????? ?? ?? ??? ?????? ?????? ??? ???? ????? ???? ?????? ????? ????????? ???? ???? ???? ????? ?? ???? ????

Quartzite
????? ?????SiO2 ??? ??????? ??? ?? ??????

???? ???

???? ???, ????-??? ???? ??? ?????? ???? ??? ?? ?????, ????? ????? ??? ???? ????? ??? ??. ????? ??? ???? ?? ????? ??? ?????? ???? ???? ?? ??? ?? ?????? ??. ??????, ????? ??? ????? ???? ? 20 ??? 250 MPa ?????. ??? ??? ???? ????? ??? ????? ??? ??? ???? ????, ??? ???? ?????? ?? ?? ????? ???? ????. ???, ????? ??? ???? ??? ???? ?? ???? ????? ????? ????. `

Sandstone

??? ?? ????

???? ??? ???? ??? ???? ????? ??? ???? ??? ?? ?? ???? ???? ????? ?? ??????? ?????? ?????? ????? ???? ????? ??? ??? ??????? ?????? ??? ??????? ??? ???? ??? ?????? ????? ?? ??????? ????? ?????? ???? ???? ???? ?? ??? ????? ???? ????? ????? ???? ????? ????? ??? ??? ??? ???? ???? ????? ???? ?????? ???? ??????? ???? ???? ?????? ???? ????? ????? ????? ??????? ??? ????? ????? ??

slag

??? ????? ?????? ???

????? ????? ??? ?? ????? ????? ????? ???? ??? ??? ??? ?????? ???? ??? ??? ??? ???? ??????? ???? ????? ??? (RCA) ?????? ??? ???? ??? ?????? ???? ??? ?? ????? ?? ???? ???? ?? ???? ???? ? RCA ?????? ? ????? ????? ???? ?? ????? ?? ?? ????? ?????? ??? ??? ???? ???? ??? ???? ??? ??? ??????? RCA ???? ?? ????? ???? ????? ??????? ????? ?? ???? ????? ???? ? ????? ????? ????? ?? ???? ?? ?? ????? ?????

Recycled Concrete Aggregate

??? ???? ????? ???? ?????

??? ???? ???? ??? ????? ????? ?? ??? ???? ???? ??? ?????? ??????

????→????? ?????→??? →?? ???? →. ???? ???? ?? ???

?????? ??? ?????? ??? ??? ?? ????? ?????? ?? ?????? ?? ??? ?? ?????? ??? ??? ???? ??? ?? ????? ??? ???? ???? ?????

aggregates production processes

1. ????

?????? ??? ??? ??????? ??? ??? ???? ???? ??? ?? ??? ??????? ????? ?????

  • ???? ????: ????? ????? ??? ?? ????? ???? ?????? ?????? ???? ???? `
  • ??? ?????: ?????? ???? ????? ???? ???? ????? ????? ???? ???? ??? ?? ?????

2. ????? ????

????? ???? ?? ??? ???? ???? ??? ????? ?????? ?????

  • ???: ???? ????? ??? ???? ??? ???? ?? ???? ?????? ?????? ????? ????? ????? ??? ???? ???? ?? ??? ?? ???? ???? ???? ?????? ????? ??? ?? ?????? ??? ?? ????? `
  • ????: ???? ???? ???? ?? ?? ??? ???? ????? ??????? ??? ??????? ????? ??????? ????? ???? ??????? ?????? ???????

3. ???

???? ????? ????? ???? ??? ??? ???? ??? ?? ?????? ?????? ??? ??? ??? ?? ??? ????????? ??? ????? ????? ?????? ??????? ?? ????? ?? ???? ????? ???????

4. ?????

???? ???? ??????? ??? ????? ????? ?????? ???? ?????? ???? ? `

5. ??? ????

??? ???? ????? ??? ??????? ????? ??? ??? ????? ????? ????? ???? ??? ??????? ??????? ??????? ??????? ????? ????? ????? ????? ????? ??????

  • ??? ????: ????? ??? ???? ??? ????? ??????
  • ?? ????? ????: ????? ??? ????? ??? ???? ???? ?????
  • ?? ????? ???? ???: ????? ??? ??????? ?????? ???????
  • ??? ???: ????? ??? ???? ???? ????? ?? ???? ??? ????? ???????

?????? ???? ??? ??? ???? ?? ???? ???? ????? ????????? ????? ??? ???? ??? ?? ??? ??? ????? ??? ??????? ??? ??? ?? ????? ?? ???? ?????? ???? ???? ???? ?? ????? ????? ??? ??? ???????? ??? ???? ?? ????? ????? ??? ???? ??? ???? ??? ????? ?????? ?? ?????? ???? ??? ????? ????? ????? ?????? ?????? ?? ?? ????? ??? ?????? ??????? ????? ?? ???? ?? ??? ????? ?????? ??? ????? ????? ??? ?? ... `