You require Denver concrete specialists who engineer for freeze–thaw, UV, and hail. We require 4500–5000 psi, air‑entrained mixes (w/c ≤0.45), #4 rebar at 18-inch o.c., Class 6 bases compacted to 95% Proctor, https://marccvbr516040.aboutyoublog.com/46628156/concrete-pouring-experts-denver