Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 2 (Q.No. 20)
20.
For construction of structures in sea water, the cement generally preferred to, is
Discussion:
32 comments Page 3 of 4.
Prashant said:
8 years ago
Porland pozzolana cement use because it is a sulphate resisting cement, high alumina to should be in the option.
Pristi said:
8 years ago
What about sulphate resisting cement?
I guess they have better resistance to sulphate attack. Am I right?
I guess they have better resistance to sulphate attack. Am I right?
Ankit kumar said:
9 years ago
IS:1489(part-I ) -1991 (using flyash).
It gives low heat of hydration and reduces the leaching of calcium hydroxide. This cement should be used only after proper evaluation. This should be tested as per IS:1489 (Pt I) " 1991. It is used for:
- Hydraulic structures-dams, retaining walls.
- Marine structures.
- Mass concrete works- like bridge footings.
- Under aggressive conditions.
- Masonry mortar and plastering.
It gives low heat of hydration and reduces the leaching of calcium hydroxide. This cement should be used only after proper evaluation. This should be tested as per IS:1489 (Pt I) " 1991. It is used for:
- Hydraulic structures-dams, retaining walls.
- Marine structures.
- Mass concrete works- like bridge footings.
- Under aggressive conditions.
- Masonry mortar and plastering.
Vicky6 said:
9 years ago
Why there is no use of quick-setting cement in sea structures?
Shubham said:
9 years ago
Rapid hardning cement is used as sudden hardening is important for such structures.
Suman Ramachandran said:
9 years ago
High alumina cement use sea waters.
Adil hussain said:
9 years ago
There is more sulphates presence in sea water and PPC is a good sulphate resisting cement. So A option is correct.
Jeetendra singh said:
10 years ago
Yes PPC are used in sea water but given option high alumina cement. So high alumina cement.
Prashant Bhardwaj said:
10 years ago
Low heat cement is used, option C.
Basu said:
1 decade ago
Alumina has better resistance against salt content water and it increase heat of hydration.
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