Durability. A concrete wall can stand up to the test of time, often lasting for a century or longer. Resistance. Do you want a retaining wall that’s fireproof, rot-proof, and rustproof?

Since then, his idea has shifted from a 1,000-mile, solid concrete wall, to a few hundred miles of "steel slats." Here's a look back at how the president's concept of a wall has evolved many times ...

Concrete Shrinkage + Restraints = Tensile Stresses = Wall Cracks Another way of thinking about this shrinkage and restraint behavior is to place our 100 ft. wall in outer space.

Lens Flare This concrete screen wall was inspired by the proportions of camera lenses By Jamie Ferello • September 7, 2018 • Architecture, Facades+, Southwest ...