Turf Enhancement

Our soil composition is mostly river silt. The soil turns to a fine powder when it it dry. I have a feeling the soil is rich in nutrients,but the soil does not hold moisture well. I was on a golf course that had just been refurbished and I observed that the fairways and greens were more sand than anything. I also observed that the course had a large pile of sand and a large pile of clay which they must have mixed together as part of the soil.
That set me to thinking. I think our soil needs bolstering with sand and clay. This cat litter is clay. It is the very least expensive at Wal-Mart. I got this Quikrete all-purpose sand at Home Depot and mixed the and and Litter together in a ratio roughly 2 bags of sand to 1 bag of litter. I used my drop spreader to apply the mixture to the yard.
I hope that doing this at intervals will help build up the soil. I'm thinking the soil will have a better compaction and it will begin to retain moisture better. This is really just an experiment and doing it on a small scale, a few sacks at a time will help me control my experimentation.