Identify the correct pairs from the following with respect to the manufacturing techniques of different types of cement.
|
Type of Cement |
Physical or chemical properties |
|
|
1. |
Quick-setting cement |
Use of reduced gypsum content as compared to that used in ordinary Portland cement. |
|
2. |
Low heat cement |
Use of reduced C2S content as compared to that used in ordinary Portland cement. |
|
3. |
Sulphate-resistant cement |
Cement with C3A content not more than 5% |
1
Only 1 and 2
2
Only 2 and 3
3
Only 1 and 3
4
1, 2 and 3