You require Denver concrete pros who plan for freeze–thaw, UV, and hail. We specify 4,500–5,000 psi, air‑entrained mixes (w/c ≤0.45), #4 rebar at 18-inch o.c., Class 6 bases compacted to 95% Proctor, and saw cuts within 6 to 12 hours. We oversee ROW permits, compliance with ACI/IBC/ADA standards, and time pours by wind, temperature, and mat