RR184 - Field Studies of the Effectiveness of Concrete Repairs
Phase 3 Report: Inspection of sites, sampling and testing at selected repair sites
Records of the investigations and testing of repairs carried out
at the sites visited in Phase 3.
In total, 46 sites were visited. At certain sites, there was
more than one type, generation or condition of repair, and in total
65 locations were examined. The sites were located in southern,
western and northern England and the midlands. They included
coastal, estuarine, river and inland locations. Elements included
beams, columns, slabs and walls from structures including bridges,
tunnels, power stations and other reinforced concrete frame
buildings. At 48 locations the repairs were investigated with
intrusive sampling, and 60 core samples were examined in the
laboratory. At 13 locations the repairs were examined by visual
inspection and hammer surveying. At 3 locations visual inspection
was supplemented with non-destructive testing (NDT).
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