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

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

manufactured sand in railway construction

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

???? ????? ????? ??? ????? ???? ???? ?? ????? ???? ??? ???? ???? ?????? ???? ???? ??? ???? ??? ??? ????? ??? ????? ???? ???? ??? ??? ?????-

  • 2018 ????? ????- ???? ??? ?10% ??? ???? ????? ???? ??? ??? ??? ????
  • 2018-2022?- ???? ???? ?? ????? ??? ???? ?????? ???? ??? ??? ?14% ?? 50.5% ????? ?????
  • 2023?- ???? ??? ??? ?? 63.5% ????? ?? ???? ???? ?? ??????

???? ???? ?????? ???? ??? ??? ???? ??? ?????? ???? ??? ??? ??????? ???? ??? ???? ?????? ?????? ???? ?????? ????? ???? ??? ??????? ??????? ?????? ?? ???? ??? ??? ?? ????? ??? ??? ???? ????? ???? ???? ???? ??? ??? ????? ?? ??????? ??????? ??????? ???? ??? ????? ?80-90% ??? ????? ?? ?????? ??? ?????? ??? ?95% ??? ?????

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

?2009 ??? ??? ??? ??? ??? ???? ???? ???? ????? ???? ?100 ???? ?? ??? ??? ?????? ??? ??????? ?2014 ??? ??? ??? ??? ??? ????? ??? ???? ????? 110 ???? ?? ??? ?????? ??? ????? ??????? ??? ???? ?? ??? ????? ?800 ??? 900 ?? ??? ???? ??? ??? ??? ???? ?? 90 ???? ?? ???? ???? ??? ??????? ?????? ???? ??? 60% ????? ???? ??? ????? ???? ???? ??? ??? ?? 50 ???? ?? ??????

manufactured sand

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

?? ??????

  • "???? ???? ????? ?????? ???? ??? ?????? ??????": ?????? ??? ????? ???? ??? ??? ?? ??? ??????? ??????
  • "???? ???? ????? ????? ???": ????? ??? ???? ???? ????? ??? ??? ?? ????? ???? ?????? ????? ??????? ???? ???????

?? ????

  • ???? ???": ?????? ???? ???? ????? ????? ??? ???? ??????? ???? ?????
  • ???? ?????
  • ????? ????? ?? ≤ 20% ??? ????? ?? ???? ???? ??? ????? ???? ???? ??? ???? ??? ?????
  • ?? ??? ???? ??? ????? ??? ??? ???? ??? ????? ???? ???? ???? ???

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

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

  • ???? ??? ????? ?????? ???? ????? ??? ???? ???? ??? ???? ????? ????? ???? ????? ???? ??????
  • ????? ?? ???? ???? ???? ???? ????? ?? ????? ????? ??????? ???? ??????

??? ???? ????

  • ??? ?? ???? ???? ????? ????? ?????? ????? ?????? ??? ????? ?????? ????? ??? ???? ?? ?? ????? ??????
  • ???? ????????? ???? ??? ???? ??? ????? ?????? ????? ????? ?????? "???? ?? ??? ???? ?? ??? ??" ????? ?????? ?????
  • ??? ????????? ??? ?????? ??????? ???? ???? ???? ?????? ???? ????? ???? ??? ?? ??? ?????? ???? ????? ???????

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

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

  • ????? ???<b>??? ????? ????? ????? ????? ?? ???? ??? ????? ?????</b></hl>
  • <b>??????? ???</b></hl> <b>????? ????? ????? ?? ?????? ??? ????? ???? ???? ?????</b></hl>
  • <b>?????? ????</b></hl> <b>??? ?? ???? ??? ??? ??????? ???? ??? ?? ????? ??????? ?????</b></hl>

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

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