The SURVIVOR OTR Concrete Deck truck scale is well suited for resisting corrosion and rust, and generally requires less maintenance than steel decks, helping to extend the life of the scale. A concrete surface also yields better traction in wet and icy conditions. Because of their design, concrete decks distribute the load over a wider area than steel decks. Concrete decks are poured at the job site and typically have a?cure strength of 4,000 PSI at 28 days. The concrete is reinforced with steel rods and a minimum of two wide-flange main beams and seven wide-flange beams below.