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#1
10th April 2013, 08:14 PM
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What does it mean by RCC grad 20 M?
What does it mean RCC grad 20M ?...pelase tell me the details
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#2
9th August 2017, 03:02 PM
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Re: What does it mean by RCC grad 20 M?
"RCC grad 20M" is the Indian standard term used in Concrete mixing design in Civil Engineering. Basically RCC stands for Reinforced Concrete Cement.
RCC Grade 20M indicate as under: Specified minimum strength of 20 N/Sq mm, For cement, you have to refer table no. 5 of IS:456-2000 Also the above coding give an idea of durability requirement and work ability. |
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#3
10th August 2017, 02:57 PM
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Re: What does it mean by RCC grad 20 M?
According to the Indian standard, M15, M20, M30 etc. are grade designations.
It means a 150 mm cube cast from the concrete mix designed for the number mentioned is supposed to attain at least that many N/mm˛ at the end of 28 days. For example, M20 concrete is supposed to have a compressive strength of at least 20 N/mm˛, 28 days after casting. |
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