ABSTRACT OF - COMPENDIUM OF CASE-HISTORIES ON REPAIR OF EROSION-DAMAGED CONCRETE STRUCTURES

This report is a companion to ACI 21OR. It contains a series of case h istories on hydraulic structures that have been damaged by erosion fro m various physical, mechanical, and chemical actions. Many of these st ructures have been successfully repaired. There were many examples to select from; however, the committee has selected recent, typical proje cts, with differing repair techniques, to provide a broad range of cur rent experience. These case histories cover only damage to the hydraul ic surfaces due to the action of water, waterborne material, or chemic al attack of concrete from fluids conveyed along the hydraulic passage s. In addition to repairs of the damaged concrete, remedial work frequ ently includes design modifications that are intended to eliminate or minimize the action that produced the damage. This report does not cov er repair of concrete damaged by other environmental factors such as f reeze-thaw, expansive aggregate, or corroding reinforcement.