?????????(High-performance Concrete ???????????????)

1
?????????

• ???????????
• ?? ??

2
?????????(High-performance Concrete
???????????????)

• 1990??????????????????????????????????????????.By
  Okamura
• ?????????????????W/C????????W/B?25-30????????????
  ?????????????????????????.

3
????????????

• ?????????(High-strength Concrete)
• ????????????,???????????.??????????fck60MPa??,??
  ??fck42MPa??,??????????fck100MPa??
• ?????????(High-durability Concrete)
• ????????????,????????????(???????????????????????
  ?)? ????????????????????(50?)???????????,?????????
  ??????,????100???????????????
• ?????????(High-fluidity Concrete)
• ???????????????,????????????????.????,????????????
  ??????????????????????(Self-compacting
  Concrete)???.

4
?????????

• ???????????????(fc-C/W?????)
• ????????????(???????????200,000cm2/g,????????????
  ??8000cm2/ggt????????????3000cm2/g)??????????????
  ??(???????????)
• ???(Transition Zone)????????????????????20µm?????
  ??,????????????????,????????????????????????????.(
  ???????????????????,????????????)
• ???(AE)????????????????????????
• ?????????????gt??????????

5
???????????????????????????

• ?????????????(?????)
• W/C50,AE???,????8cm,???4.5,fck30N/mm2
• ????????????
• W/B25,BCSF,SF/(CSF)10,???AE?????,????8cm
  or ???????60cm,???4.5,fck80N/mm2
• ??
• ??????????????,????????????????,LCC???
• ???????????????(?,PC??)

6
?????????????

• ????(???????)??????????????????.? ????
  ftk0.23fck2/3,fck30MPa?ftk2.22MPa,fck60MPa(
  2?)?3.53MPa(1.6?),??????????????1/13.5?1/17
• ?????????,????????(??????).
• ??????????????????? ?
• ?????????????????.???????????????
• ??????????????????????? ?(? ?????????????????????
  ??,????????)

7
?????????

• ????????????????????????????????????????.???????
  ????????????????????????,??????????.
• ??????????????
• ?????????????????????????(GGBS,SF,FA)??????,??????
  ???????????(???????????)
• ???????????????

8
?????????????(1)

• ??????
• W/C????????????
• ???????????????(???????????,???????????)
• ????????????????????(???????Cl-?C3A??????3CaOAl2
  O3CaCl210H2O???)?????????????
• ???????
• W/C????????????
• ???????????????
• ???????????????,(?????????????)???????????????(???
  ?????????????.)

9
?????????????(2)

• ??????
• W/C45??,???4-6(???????5??)????????
• ?W/C,???????,??????????????????,??,???????.(????30
  0?????????????????.)?????????????,????????????????
  ,AE???????????????.
• ASR????
• ???(???,FA,SF)??????
• ?,????,????????????
• ????????????????ASR????????.
• ?????????
• ?????????????,????????????????????????.
• ??????????????(????????????????)?????????????????
  ???

10
?????????

• ????????,???????(???),??????????????????????????
  ???????????????
• ?????????????????(???????500-750mm),???V????(????
  ??7-13s),?????????????????????????????????????????
  ?(?????300mm??)

11
????????????(?????????????????)

• ???????????????????,????????????,??????????(???)?
  ?????????????.
• ????-??????,????????????????????????.
• ???-????????????,??????????????,?????????????????
  ?????????????????????

12
????????????

• ??????????????
• ??????????,???(AE)???(SP?)???????
• ??????? ?,??????????????
• ??????????????????????.(???)
• ???????????(????????,SP??????????????)
• ?????????,??????????????????????,????,???????
• ?????????????????? ?
• ??
• ???????????(???????????.? ????????,???????????)
• ????(????)
• ??????????????(?????????,???,???????????????????)
• ???
• ???,????,?????