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WORK PACKAGE 9: PRACTICAL BRIDGE MANAGEMENT - page 24 / 67

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SAMCO Final Report 2006 F09 Report on Bridge Management

Investigation type code

Description

1 2 3 4 5 6 7 8

Alkali-silica reaction Chloride contamination Carbonation Corrosion of reinforcement/prestressing cables Structural steel paintwork Accidental damage Spalling of masonry, brick or concrete

Chloride ion levels in reinforced concrete decks before waterproof- ing or on re-waterproofing

Table 6. Investigation types to be used for different cases.

Priority H

Description

High; work should be done during the next financial year to ensure the safety of the public or safeguard structural integrity or avoid a high cost penalty.

M

Medium; work should be done during the next financial year. Postpone- ment carries some cost penalty.

L

Low; work should be done within the next two financial year. Table 7. Priority levels.

In addition to completing the forms, the findings from Principal and Special Inspec- tions are described in detailed reports. These include details of the structure includ- ing a drawing showing the form of construction and a description of the deck, sup- ports, articulation, deck ancillaries such as expansion joints, waterproofing, parapets, and any other relevant information. The reports also include the maintenance history of the structure, previous inspections and a detailed description of the condition of each element inspected.

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