UFC 4-150-07
19 June 2001
CHAPTER 3
MATERIALS AND PREVENTIVE MAINTENANCE
3-1
GENERAL. Common structural materials used for construction and
repair in waterfront areas are: wood, reinforced concrete, steel, and plastic.
Selecting the proper materials and systems can reduce maintenance costs and
increase the life of facilities. Wood preservatives, coatings, quality control of the
reinforced concrete materials, cathodic protection, and carefully selecting alloys
and synthetic materials help extend the life of the materials and structures.
This Section describes types of materials used in the construction and
repair of waterfront facilities; types of deterioration, corrosion, and other problems
that may be encountered; and preventive maintenance (PM) actions that should
be taken. Table 3-1 summarizes PM actions that should be a part of all
waterfront maintenance programs.
Table 3-1. Summary of Preventive Maintenance Actions
PREVENTIVE MAINTENANCE ACTION
PARAGRAPH
NUMBER
Wood and Timber General
Use pressure-treated member
3-2.3.1
Treat exposed areas: cuts, bolt holes, pile tops
3-2.3.2
Embed fumigant in pile top
3-2.3.3.5
Use pile top bonnet and preservative
3-2.3.3.5
Timber Piles
Install plastic wrapping or jacket
3-2.3.5
Concrete - General
Use Type II or V cement
3-3.2.1
Avoid marine aggregates
3-3.2.2
Provide adequate cover over reinforcing steel
3-3.3
Use coating on concrete above splash zone
3-3.6
Treat cracks with a flexible elastomeric or with polyurethane
3-3.6.4
injection
Steel General
Design Actions
Select type of steel for environmental conditions of use
3-4.1
Select proper protective coating for immersed steel
3-4.3.1
Provide cathodic protection system
3-4.3.3
Substitute corrosion resistant metals for steel
3.5
Increase thickness to allow for corrosion over life cycle
Minimize galvanic corrosion:
3-5.5
Minimize use of different metals
3-5.5
Insulate different metals from each other
3-5.5
Maintain protective coatings
3-5.5
Keep cathodic area small relative to active metal
3-1
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