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Standard Deviation
Posted January 15th, 2009 by P.K.Mallick
Project: | www.sefindia.org |
Component: | Code |
Category: | support request |
Priority: | critical |
Assigned: | civilenggmink |
Status: | active |
Description
Grade of concrete in a particular construction is unknown.However cubes' strength are available. Cubes have been taken in right frequency as per IS:456-2000. Is it possible to determine the Grade of concrete from available data of cubes' strength?
Updates
#1 submitted by sunilkshrivastav on Thu, 02/11/2010 - 05:47
Dear Mr P K Mallick
You should calculate standard deviation and mean of all sample results thenafter apply the acceptance criteria as per page 30 table 11 of IS 456:2000 with amendments No.3.From this you can find out strength of concrete for your decision making.
Sunil Kumar Shrivastav
SEFI Member
#2 submitted by civilenggmink on Fri, 09/24/2010 - 16:09
Title: | GRADE OF CONCRETE. | » Standard Deviation |
Assigned to: | P.K.Mallick | » civilenggmink |
Dear Sir
i want to know why we need calculate standard deviation for concrete....?
pls ..