02-Voved Vo Tehnologija Na Betonot
description
Transcript of 02-Voved Vo Tehnologija Na Betonot
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2 /87 .1.011
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3 ASTM C150-94:
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4 EN197-1:
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6 6500 .... , , , , , , . .
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7 1756 John Smeaton Eddystone Lighthouse, CornwallC t E l dCoast, England . .
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8 1756 John Smeaton
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9 1756 John Smeaton
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1796 James Parker:
Roman C t Cement, .
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1813 Joseph Vicat:
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1824 Joseph Aspdin:
1824 , 1824 . . - .
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1824 Joseph Aspdin:
, , . . .
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1824 Joseph Aspdin:
, Dover, England.
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1845 Isaac Johnson:
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: :
CaO, SiO2 C3S, C2S C-S-HAl2O3 Fe2O3 C3A C4AF AF AFt Al2O3, Fe2O3 C3A, C4AF AFm, AFt
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CaCO3
CaO, SiO2, Al2O3, Fe2O32 2 3 2 3
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CaO, CaCO3
SiO2, Al2O3, Fe2O3
CaO, SiO2, Al2O3, Fe2O3
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:(CaO)/(SiO2+Al2O3+Fe2O3)(CaO)/(SiO2+Al2O3+Fe2O3) 1.7-2.3
1.7 2 3 , 2.3 .
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:(SiO2)/(Al2O3+Fe2O3) 1 9 2 7 1.9-2.7
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:(Al2O3)/(Fe2O3) 1 5 2 5 1.5-2.5
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1110
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119
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1., 2. , 3. ,4. , 5. , 6. ,
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7., 8. , 9. ,10., 11.
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, . 1250C.
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,,
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54%,, 2%,
.,.,, 1%,
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7%,
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C3S :
C=CaO, S=SiO2
50% . .
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C2S :
C=CaO, S=SiO2
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C3 :
C=CaO, S=SiO2, A=Al2O3
24 , 24 , .
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- C2xF1-x :
C=CaO, S=SiO2, A=Al2O3, F=Fe2O3
, C3A . .
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/87:
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: - .
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PC k - PC kk-
- 15% 15% 30% PC 15z k
PC 30z k
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- 15% 15% 30%.
PC 15p k PC 15p kPC 30p k
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- 15% 30%
PC 15d (z p) k PC 15d (z p) kPC 30d (z p) k
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- 30% 30%
85%.
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- 30% 30% 85%. P
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- 30%, ( ) 5-40%. Mp kp
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25, 35S, 35B 45S 45B 5535B, 45S, 45B 55.
-S -B B
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[MPa]
1 3 7 28 1 3 7 28 fzs fp fzs fp fzs fp fzs fp
25 / / / / 2.5 10.0 4.0 22.035 S / / / / 3.5 14.0 5.0 31.035 S / / / / 3.5 14.0 5.0 31.0
B / / 3.0 14.0 / / 5.0 31.045 S / / 3 0 14 0 / / 5 5 40 045 S / / 3.0 14.0 / / 5.5 40.0
B / / 3.5 18.0 / / 5.5 40.055 3.5 18.0 / / / / 6.5 49.0
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0.09mm0.09mm Blaine
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Le
Sh t liShatelier -
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