Reinforced concrete structure construction: Shotcrete is applied by the worker on the left, who sprays mixed concrete against the back side form and around the reinforcing steel. Worker on right clears away overshot shotcrete from back form and resteel using high pressure air from his wand/sprayer. Together, they place concrete to build a reinforced concrete wall. Pallazo, Westwood, Los Angeles, California, January 2006.

Reinforced concrete structure construction: Shotcrete is applied by the worker on the left, who sprays mixed concrete against the back side form and around the reinforcing steel. Worker on right clears away overshot shotcrete from back form and resteel using high pressure air from his wand/sprayer. Together, they place concrete to build a reinforced concrete wall. Pallazo, Westwood, Los Angeles, California, January 2006.