pca slab-on-grade design charts
 

pca slab-on-grade design charts
i am looking for the formulas used to develop the pca slab-on-grade design charts. i want to put these formulas into a spreadsheet so that i won't have to use those awful charts.
i am using the charts found in "designing floor slabs on grade" 2nd ed. by ringo and anderson.
i've always wanted to do that too....perhaps a call to pca?