This set of Tough Concrete Technology Interview Questions and Answers focuses on “Sulphur Infiltrated Concrete, FRC”.
1. Which cement is used in sewage and water treatment plants?
a) Rapid Hardening Cement
b) Low Heat Cement
c) Sulphate Resisting Cement
d) Quick Setting Cement
View Answer
Explanation: Cement with composition has very good resistance to sulphate attack. This type of cement is used in the construction of foundation in soil where subsoil contains very high proportions of sulphate.
2. Which cement is used for mainly building construction where strength required with age?
a) Rapid Hardening Cement
b) Low Heat Cement
c) Portland Pozzolana Cement
d) Quick Setting Cement
View Answer
Explanation: It gains very high compressive strength with age unlike other cement and it is very cheap and affordable.
3. Which cement is used for artificial marble?
a) Rapid Hardening Cement
b) Sulphate Resisting Cement
c) Coloured Cement
d) Quick Setting Cement
View Answer
Explanation: As the name suggests, it is used where coloured cement required for any aesthetic purposes.
4. Which cement is used to create bond with old concrete surface?
a) Rapid Hardening Cement
b) Expansive Cement
c) Sulphate Resisting Cement
d) Low Heat Cement
View Answer
Explanation: As the name suggests, it expands and increases in volume while settled. It is used to avoid shrinkage of concrete.
5. Which cement is used to store for longer duration in wet climatic conditions?
a) Expansive Cement
b) Ordinary Portland cement
c) Hydrophobic Cement
d) Quick Setting Cement
View Answer
Explanation: This type of cement is manufactured by mixing admixtures like petrolatum, napthalene soap which forms layer and act as water repellent.
6. Which cement used in frost resistance concrete?
a) OPC
b) PPC
c) AEC
d) QSC
View Answer
Explanation: It is used to fill up the gap in concrete which are produced by excessive amount of water during casting (later evaporated and leave the gap).
7. Which cement is used for the construction of water-retaining structure like tanks, reservoirs, retaining walls, swimming pools, dams, bridges, piers etc?
a) Waterproof Portland cement
b) Colored Cement
c) High Alumina Cement
d) Low Heat Cement
View Answer
Explanation: This cement is prepared by mixing with OPC or rapid hardening cement with a small percentage of some metal stearates at the time of mixing.
8. ____ cement is used for formwork that can be removed earlier and reused in other areas which save the cost of formwork.
a) Rapid Hardening Cement
b) Colored Cement
c) High Alumina Cement
d) Low Heat Cement
View Answer
Explanation: Rapid hardening cement is used where the formwork can be removed earlier and reused in other areas which save the cost of formwork. This cement can be used in prefabricated concrete construction, road works, etc.
9. Which cement is mainly used for interior and exterior decorative works?
a) Rapid Hardening Cement
b) Colored Cement
c) High Alumina Cement
d) Low Heat Cement
View Answer
Explanation: This Cement is produced by adding 5- 10% mineral pigments with Portland cement during the time of grinding.
10. Which cement is used for works economic where considerations is predominant?
Reservoirs, retaining walls, swimming pools, dams, bridges, piers etc.
a) Waterproof Portland Cement
b) Colored Cement
c) High Alumina Cement
d) Blast Furnace Slag Cement
View Answer
Explanation: It is obtained by grinding the clinkers with about 60% slag and resembles more or less in properties of Portland cement.
Sanfoundry Global Education & Learning Series – Concrete Technology.
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