For the cements A and B, whose chemical compositions are given in the table below: a) Calculate the main Mixed Oxide values using BOGUE formulas. b) Compare the strength change by time of both types of cement by showing them on the same graph. Accordingly, if you need to remove the mold early, please specify which cement you will choose by explaining the reason. c) Indicate which cement is more resistant to sulphate attack by explaining the reason. d) Indicate which cement can be used in mass concreting by explaining the reason. Cement A 66,nn Cement B Bogue Formulas 61,nn Сао C3S 4.0710CaO-7.6024SIO2-1.4297FE2O3-6.7187A12O3 SiO2 23,7 3,0 2,8 23,0 Al2O3 5,5 C2S 8.6024SIO2+1.1FE2O3+5.0683A12O3-3.0710CAO Fe:O3 6,5 MgO SO3 1,0 0,5 C3A 2.6504A1203-1.6920FE2O3 1,0 1,0 Others 1,9 2,5 Fineness C4AF = 3.0432FE2O3 3900 2800 (cm2/g)

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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nn=02

Q.2:
For the cements A and B, whose chemical compositions are given in the table below:
a) Calculate the main Mixed Oxide values using BOGUE formulas.
b) Compare the strength change by time of both types of cement by showing them on the
same graph. Accordingly, if you need to remove the mold early, please specify which
cement you will choose by explaining the reason.
c) Indicate which cement is more resistant to sulphate attack by explaining the reason.
d) Indicate which cement can be used in mass concreting by explaining the reason.
Cement A
Cement B
Bogue Formulas
Сао
66,nn
61,nn
C3S = 4.0710CaO-7.6024SIO2-1.4297FE2O3-6.7187Al2O3
SiO2
23,7
23,0
Al2O3
Fe2O3
3,0
5,5
C2S = 8.6024SIO2+1.1FE2O3+5.0683A12O3-3.0710CAO
2,8
6,5
MgO
1,0
0,5
C3A 2.6504A½O3-1.6920FE2O3
SO3
1,0
1,0
Others
1,9
2,5
Fineness
C4AF = 3.0432FE2O3
3900
2800
(cm2/g)
Transcribed Image Text:Q.2: For the cements A and B, whose chemical compositions are given in the table below: a) Calculate the main Mixed Oxide values using BOGUE formulas. b) Compare the strength change by time of both types of cement by showing them on the same graph. Accordingly, if you need to remove the mold early, please specify which cement you will choose by explaining the reason. c) Indicate which cement is more resistant to sulphate attack by explaining the reason. d) Indicate which cement can be used in mass concreting by explaining the reason. Cement A Cement B Bogue Formulas Сао 66,nn 61,nn C3S = 4.0710CaO-7.6024SIO2-1.4297FE2O3-6.7187Al2O3 SiO2 23,7 23,0 Al2O3 Fe2O3 3,0 5,5 C2S = 8.6024SIO2+1.1FE2O3+5.0683A12O3-3.0710CAO 2,8 6,5 MgO 1,0 0,5 C3A 2.6504A½O3-1.6920FE2O3 SO3 1,0 1,0 Others 1,9 2,5 Fineness C4AF = 3.0432FE2O3 3900 2800 (cm2/g)
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