I can then provide more technical specifications or a more narrative-driven draft. 2025 Standard Specifications for Highway Construction
Bridge decks face constant threats from heavy traffic, freezing temperatures, and road salts. Without a robust barrier, moisture seeps into the concrete, rusting the steel reinforcement and causing structural failure. Section 420 provides the "gold standard" for this protection by combining a thick, flexible membrane with a durable asphalt driving surface. Key Components of the System
Strict limits on how hot the material can be heated to prevent damage to the polymers.
