Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 1 (Q.No. 8)
8.
According to I.S. : 456, the number of grades of concrete mixes, is
Discussion:
62 comments Page 2 of 7.
DEEPAK MARTHA said:
7 years ago
According to IS 456:2000 c-9.3 nominal concrete may be used M20 or less.
So, according to IS 456:2000 the nominal mix concrete is M5, M7.5, M10, M15, M20 mention in the table no-09 of is 456:2000.
So, according to IS 456:2000 the nominal mix concrete is M5, M7.5, M10, M15, M20 mention in the table no-09 of is 456:2000.
Lukman ada said:
10 years ago
According to IS 456-2000 grade of concrete are as follows,
Ordinary Concrete - M 10 to M 20(3 grade).
Standard Concrete - M 25 to M 55(7 grade).
High strength Concrete - M 60 to M 80(5 grade).
Ordinary Concrete - M 10 to M 20(3 grade).
Standard Concrete - M 25 to M 55(7 grade).
High strength Concrete - M 60 to M 80(5 grade).
SABYASACHI SEN said:
1 decade ago
Nominal concrete grades are from M5 TO M25 maximum. But still we need to have mix for M 25 also.
Here we take std concrete which starts from M 25 TO M 55 (i.e. 7) from IS 456:2000 table 2.
Here we take std concrete which starts from M 25 TO M 55 (i.e. 7) from IS 456:2000 table 2.
Koushik Ghosh said:
3 years ago
Nominal grade of concrete 5 nos.
M5, M7. 5, M10, M15, M20.
Standard Grade of Concrete 7 nos.
M25, M30, M35, M40, M45, M50, M55.
High Strength of Concrete 5 NOs.
M60, M65, M70, M75, M80.
M5, M7. 5, M10, M15, M20.
Standard Grade of Concrete 7 nos.
M25, M30, M35, M40, M45, M50, M55.
High Strength of Concrete 5 NOs.
M60, M65, M70, M75, M80.
(23)
Nitin Gavit said:
8 years ago
As per IS 456 : 2000 grade of concrete is:
Ordinary concrete - M10, M15, M20.
Standard concrete - M25, M30, M35 M40 M45 M50 M55.
High strength concrete - M60 M65 M70 M75 M80.
Ordinary concrete - M10, M15, M20.
Standard concrete - M25, M30, M35 M40 M45 M50 M55.
High strength concrete - M60 M65 M70 M75 M80.
ABHISHEK said:
7 years ago
According to IS 456:2000 NOMINAL MIN IS FROM M5 TO M25.
BUT ACCORDING TO IS 456: 2013 NOMINAL MIX IS FROM M5 TO M20.
Mix m25 and above are now regarded as design mix.
BUT ACCORDING TO IS 456: 2013 NOMINAL MIX IS FROM M5 TO M20.
Mix m25 and above are now regarded as design mix.
Akshey Sharma said:
6 years ago
@All.
Just read the question again they asking the number of grade, Not standard, not ordinary also not high strength.
So, Total no of grade is 15 (M10-M80).
Just read the question again they asking the number of grade, Not standard, not ordinary also not high strength.
So, Total no of grade is 15 (M10-M80).
(1)
Vishnu said:
8 years ago
According to old code(IS 456-1978) there are 7 grades of concrete(M10 to M40).
According to new code(IS 456-2000) there are 9 grades (M10 to M50).
According to new code(IS 456-2000) there are 9 grades (M10 to M50).
Biplab Sarkar said:
2 years ago
As per IS456-20, amendment 4.
Ordinary Concrete : M10,M15,M20 (3Nos).
Standard Concrete: M25-M60 (8Nos).
High Strength Concrete: M65-100 (8Nos).
Ordinary Concrete : M10,M15,M20 (3Nos).
Standard Concrete: M25-M60 (8Nos).
High Strength Concrete: M65-100 (8Nos).
(13)
Neha said:
7 years ago
IS 456-2000 has designated the concrete mixes into a number of grades as M10, M15, M20, M25, M30, M35 and M40.
This is the correct answer.
This is the correct answer.
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