Title:
Marine Concrete--When to Repair, What to Repair
Author(s):
Valery M. Buslov
Publication:
Concrete International
Volume:
14
Issue:
5
Appears on pages(s):
36-40
Keywords:
concrete durability; corrosion; cracking (fracturing); deterioration; embedment; harbor structures; patching; reinforcing steels; repairs; shotcrete; General
DOI:
Date:
5/1/1992
Abstract:
Attributes failure of repairs in a marine environment to the practice of repairing all existing damage, irrespective of magnitude. Argues that repairs should not be undertaken until corrosion damage is sufficiently well developed to allow for relatively easy removal of concrete around reinforcing steel, because complete embedment of reinforcing steel in the replacement material is necessary to prevent early failure. A 5-year maintenance repair cycle is suggested for concrete marine structures, assuming a 15-year service life for average quality shotcrete repairs. The suggested approach is limited to non-prestressed components of marine structures; prestressed members should be repaired at the first signs of deterioration.