???????：?????? ????? ????????? ??????????? ????? ????????? ??????????, ???? ?????? ???????? ??????? ??????? ????? ??????? ?????????.

?????? ????? ????????? ??????????? ????? ????????? ??????????, ???? ?????? ???????? ??????? ??????? ????? ??????? ?????????. ??????? ??????? ????? ?????????, ?????? ????? ??????????, ????? ???? ???? ????? ???????? ?????? ???????????????. ?????????? 4 ?????? ???? ???? ????? ??????? ????????? ????? ???????.

1. ???????? ???? ????? ??????

??? ????? ?????? ?????? ???????? ???? ????? ??????, ??? ?????? ????????? ?????? ?????? ???? ????? ?????? ?????? ???? ???????? ??????????? ????? ???????. ???????? ???? ????? ?????? ????????? 140 MPa ???? ?????? ??? ????? 15% ???? ?????? ????????? ???? ?????? ???? ??????????? ???????? ????????? ????????? ???????. ?? ??????? ???? ????? ?????? ???? ???????? ???????, ??? ?????? ???????? ???????? ??????? ?? ????????? ???????.

2. ????? ????? sands ????? ??????

????? ????? ????? ????? ???????? ??? ??????????, ????? ??????? ???? ?????? ??????? ???????? ????????. ?????, ??????? ??????? ??????????? ?????????? ?????????????, ??? ?????? ??????? ???? ??????? ???????? ???????. ????????? ?????? ????? ???? ??????? ??????????? ???? ????? ??????? ??????????, ????? ????? ????? ????? ??????? ????? ???? ???????????? ????????? ????? ?? ??????? ????? ????? ?????????????? ??????? ???? ???? ?????????? ????????.

3. ?????? ????? ?????? ????

??????? ?????? ???????? ?????? ????? ??? ???? ????? ?????. ??? ???? ????? ????????? ???? ?????????? ???????? ?????????? ?????? ???? ????? ?????. ??????? ?????? ???????? ?????? ???? ??????????? ???? ??????????? ???? ?????? ????? ????? ??????? ????? ???? ????? ????? ???? ???? ???????? ????? ?????????? ??????? ????? ???????. ??????? ?????? ???????? ?????? ?? ????? ?????? ?????? ??????????????, ??? ????????????? 30% ????? ?????? 40% ????????????. ???? ????? ?????? ????? ???? ????? ?????? ?????? ???? ????? ????? ??????????? ???????????, ????? ???????? ????????? ????????????.

4. ????????? sands ????? ??????

????????? ????? ????? ?????? ????? ?????? ?????????????? ????????? ???? ????? ????? ????? ?????????? ???? ?????????? ?????????????. ????????? ????? ????? ?????? ????? ????? ???????: ????? ??? ????????? ????? ?????? ????? ??????? ????????? ????? ??????. ??? ?.flex?? ?????????? ????? ???? ???????? ????? ????? ????, ??? ????? ?????????? ???? ??????????? ???????? ???? ???????? ????? ??????????? ???????? ??????? ????????? ???????.

????????? ? Gravel? ?????????, ???? ??????? ???????? ????? ??????? ???????????. ???? ? Gravel? ????? ???? ?????????? ????????? ?? ???????? ????????????? ?????????? ????? ????? ?????????????? ??????????!