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 1 of 7.
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)
Kusal Pal said:
4 years ago
According to IS 456-1978.
There are only 7 Grades.
But According to IS 456-2000;
(M10-M20) = nominal mix.
(M25-M60) = standard mix M60 was added to standard mix from high mix in amendment of IS 456:2000 code in 2013).
M65 - M100.
So, there are 19 grades of concrete mix.
There are only 7 Grades.
But According to IS 456-2000;
(M10-M20) = nominal mix.
(M25-M60) = standard mix M60 was added to standard mix from high mix in amendment of IS 456:2000 code in 2013).
M65 - M100.
So, there are 19 grades of concrete mix.
(15)
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)
Yasir said:
4 years ago
The answer @Junaid Nisar gave is correct.
According to IS 456:2000:
M10-M20 (nominal mix)
M25-M60 ( standard mix M60 was added to standard mix from high mix in amendment of IS code in 2013).
M65-M100.
So, basically there are 19 grades of concrete.
According to IS 456:2000:
M10-M20 (nominal mix)
M25-M60 ( standard mix M60 was added to standard mix from high mix in amendment of IS code in 2013).
M65-M100.
So, basically there are 19 grades of concrete.
(4)
Sandeep Rana said:
4 years ago
As per Is code.
M5, M10, M15, M20, M25, M40, M80,
M5, M10, M15, M20, M25, M40, M80,
(3)
Junaid Nisar said:
4 years ago
As per IS 456-2000 there are 19 grades for concrete mix.
(2)
Arshad Ali said:
5 years ago
IS 456-2000 has designated the concrete mixes into a number of grades as M10, M15, M20, M25, M30, M35 and M40. In this designation, the letter M refers to the mix and the number to the specified 28-day cube strength of mix in N/mm2.
(2)
Nitin bairagi said:
6 years ago
Acc.to IS 456- 7 grades:
M10
M15
M20
M25
M30
M35
M40
M10
M15
M20
M25
M30
M35
M40
(1)
Diya said:
9 years ago
The value should be 15 as per IS 456 - 2000.
(1)
Samsung said:
9 years ago
For above M25 grade we follow mix design as per IS or design method.
(1)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers