Mix design of Concrete: General and IS Method

[@dipendrabhowmick3505]

Sir, many thanks for enlightening with the nuances of mix proportioning. Two queries: 1. In some questions by IS 10262 method, the given data in the exam question is say, 0.9 or so, CF as workability, not in terms of slump. But, T-2 is in terms of slump. So, how to convert CF into known slump to be able to use T-2 of 10262, to proceed for max. Which table should be used from IS: 456 or IS 10262, for conversion? 2. If u can kindly add an example of mix proportioning in DOE method.

[@pks8538]

what is Water content for slump less than 25 mm???

[@RAJ-lc2lg]

Sir im s.naveen raj im civil engineering student can you please clarify my doubt in volume of dry concrete=1.5*volume of wet concrete Hows that 1.5 comes sir will u please explain in comment sir And is that details available in anycode book sir

[@saibabuk4108]

U have to consider voids in C.A(30%) and F.A (20%) = total voids in dry state is 20+30=50% Dry /wet = 1+ (50%/100)= 1.5

[@migmartsering1010]

tu mera hathti, mai tera satii music...!!!!!