Theorically how is it possible to select the most economical combination of mix ratio for a concrete (e.g. 5000 Psi)? Is there any procedure?
There are several procedures for determining the most economical mix design and may are in the form of computer programs and spreadsheets. Some take into account the costs of the various materials. For use on the job, you will have to trial the mix to check out bleed, slump, stiffening time, setting time and propensity to segregate.
Good afternoon
You can se the ACI 211.1 report, this very good for to design mixture concrete
It is difficult to your question because it depends upon several variables. The use of superplasticizer (type and dosage), cement type (strength class) aggregate grading... There are several mix design procedures that you can easily find online which can help you
Ya, there r indeed Mix design procedures, but those do not consider economic side. For example, for 5000 psi concrete you can have different mix ratios but to have the most economic combination u need to calculate manually....... Can any one add more regarding this?
One difficulty is that, not only is such a calculation place specific, it is also project specific, mix use specific, supplier specific and time specific.
You can automate this if you want, in an Excel spreadsheet.
I am sure that many of the large suppliers have such spreadsheets, but do not publish them..
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