Dear friends,
As a civil engineer, we must have knowledge about IS codes and there uses in construction so that we can be more confident and can perform the work easily according to Indian standards and quality.
So Myself Er. Suleman Ansari trying to give some points that will definitely increase your knowledge and can perform according to that.
I want to give the information that I have a youtube channel named tech civil world so please visit and search Important points for IS CODE 456 I have explained in proper way.
THE VERY FIRST POINTS
ABOUT
CONCRETE
CLAUSE-7.1 PG-17 (IS CODE
456
2000)
WORKABILITY OF
CONCRETE-
(EASE OF PLACING OF
CONCRETE)
SLUM CONE TEST AND
CRITERIA OF ACCEPTANCE
The second point is
Frequency of sampling of
concrete CUBE- pg.-
29- 15.2.2-
IS CODE 456 -2000
•11) for 1 to 5 cum of concrete.:- 1
•2) for 6 to 15 cum of concrete.:- 2
•3) for 16 to 30 cum of concrete.:- 3
•4) for 31 to 50 cum of concrete.:- 4
•5) for 51 and above:- 4 + one additional
three settings for each
sample for curing period of
28 days
MINIMUM CURING PERIOD OF
CONCRETE
13.5.1—PG -27-IS 456 2000
•1) At least 7 days from the date of
placing of concrete.
•2) In Case of Portland cement- minimum 10
days when mineral admixture or blended cement is used.
•3) At least 10 days in dry and hot
weather conditions.
•4) minimum days extended to 14 days.
DESHUTTERING PERIOD OF CASTING CONCRETE OF DIFFERENT STRUCTURES
PG NO. 25 Clause-11.3.1 is code 456-
2000
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Go for this link for is code 456 2000
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