Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 2 (Q.No. 10)
10.
Addition of pozzolana to cement causes
Discussion:
4 comments Page 1 of 1.
Bhupi said:
6 years ago
PPC increases shrinkage? Please tell me.
Praveen said:
7 years ago
@Jagtar.
It increases curing time because hydration of PPC is taking too much time or a long time if we don't provide curing for a long time so some unhydrated cement have been left in concrete paste so because of this strength of concrete is reduced.
It increases curing time because hydration of PPC is taking too much time or a long time if we don't provide curing for a long time so some unhydrated cement have been left in concrete paste so because of this strength of concrete is reduced.
Er.Indra Raj Joshi said:
7 years ago
REDUCED SHRINKAGE.
PPC in concrete helps to reduce drying shrinkage & plastic shrinkage. Drying shrinkage is reduced because of lower internal concrete stresses & slower heat generation. Plastic shrinkage is also reduced considerably because concrete bleeds less at a given slump or workability by using PPC.
PPC in concrete helps to reduce drying shrinkage & plastic shrinkage. Drying shrinkage is reduced because of lower internal concrete stresses & slower heat generation. Plastic shrinkage is also reduced considerably because concrete bleeds less at a given slump or workability by using PPC.
Jagtar singh said:
7 years ago
How it increases the curing time? Explain, please.
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