Match list I with list II and select the correct answer from the given below lists.
|
Column I (Constituent of cement) |
Column II (Contribution to property of cement) |
||
|
A. |
Lime |
1 |
Influences setting property |
|
B. |
Alkalis |
2 |
Cause efflorescence and staining |
|
C. |
Alumina |
3 |
Imparts strength |
|
D. |
Iron oxide |
4 |
Imparts colour |
• Lime : Imparts strength
Lime is the principal constituent of cement and contributes mainly to strength.
• Alkalis : Cause efflorescence and staining
Excess alkalis may lead to efflorescence and staining.
• Alumina : Influences setting property
Alumina helps in quick setting of cement.
• Iron oxide : Imparts colour
Iron oxide gives cement its greyish colour and also assists in clinker formationPreparing students for success in a changing World.
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