BACKUP PROTECTION FOR SEALED STRUCTURAL EXPANSION JOINTS

摘要

A retrofit for diverting water leaking into an elevated expansion joint (EJ1) is formed by lowering an applicator (1B1) that carries an adhesively treated water run-off arrangement (AD1 + AD2) into the joint and pressing the arrangement against inside walls of the joint with an expanding bladder (PT1 + PT2) under fluid pressure. When the adhesive cures, reducing the pressure collapses the bladder (PT1 + PT2) and allows withdrawal of the applicator.