Long-Span Bridge Programs Drive Low-Relaxation Specification
Bridge engineers are increasingly specifying low-relaxation strand for long-span and cable-stayed bridge construction, driven by the superior stress retention this grade provides over standard-relaxation products across the multi-decade design life public infrastructure agencies require. This demand has grown fastest among agencies replacing aging bridge infrastructure built decades ago, where current engineering standards mandate low-relaxation strand specification that older standard-relaxation designs never required. Several major producers have expanded dedicated low-relaxation production lines specifically to serve this growing demand, recognizing that once an agency approves a supplier for a major infrastructure program, switching suppliers becomes difficult given the certification and testing involved.
Market Impact: Adds 3.5 percent replacement demand








