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vishwanath singh
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Join Date: Nov 2009
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Compressing Strength of Cube

06/16/2011 2:02 AM

For M30 grade of concrete if the value of 7 days and 28 days results found differ from the design value(Means instead of 20.1 for 7 days it comes 23.0,25.0 and for 28 days it instead of 30 it comes 35.0,40.0) then the result will failure or not?
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

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#1

Re: compresing strength of cube

06/16/2011 2:10 AM

?? In each case, it sounds as though the concrete has exceeded the specifications.

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lyn
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#2

Re: compresing strength of cube

06/16/2011 7:20 AM

Not.
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RCE
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#3

Re: Compressing Strength of Cube

06/17/2011 11:14 AM

Are you concerned that the concrete is too strong? the break results show it is stronger than the minimum design specification. In most applications I have ever dealt with this is fairly typical and what you would normally expect on good concrete. Many times the plants and/or subcontractors call for something slightly stronger just to make sure they make the minimum design strength.
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ba/ael
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#5
In reply to #3

Re: Compressing Strength of Cube

06/20/2011 1:10 PM

RCE,

Isn't it also true that cube tests provide higher apparent strengths than cylinder tests?

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Pineapple
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#4

Re: Compressing Strength of Cube

06/17/2011 12:52 PM
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