Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 3 (Q.No. 5)
5.
Efflorescence in cement is caused due to an excess of
alumina
iron oxide
silica
alkalis
magnesium oxide.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Parsolian said:   4 years ago
Due to the presence of N2O and K3O which is soda and potash emerge on the surface as the moisture vaporized.

Disha Makvana said:   7 years ago
Alkalies like K20 and Na20 causes efflorescence is the white powdered material seems on the surface of the brick after immersed out from the water.

S B said:   7 years ago
Lime, silica, iron oxide imparts strength, alumina quick setting, when alkalies in excess, causes efflorescence.

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