prestressed

/priːˈstrɛst/
adjective
  1. Describing concrete or another material that has been strengthened by having internal stresses applied before use, typically by stretching steel cables or rods inside it.
    • The new bridge was built with prestressed concrete beams to support heavy traffic.
    • Engineers chose prestressed materials for the stadium roof to ensure it could withstand strong winds.
    • Many modern parking garages use prestressed concrete because it is both strong and lightweight.
Antonyms
verb
  1. To apply internal stresses to a material (such as concrete) before it is put into use, in order to improve its strength and durability.
    • To make the highway last longer, workers prestress the concrete slabs with steel cables.
    • The construction company will prestress the concrete beams before installing them in the building.
    • The factory uses a special machine to prestress the steel rods that reinforce the concrete.