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铝、锌和其合金及成分涂料进行热喷(金属喷镀法)施 工为钢板提供防腐保护的规范 Application of metallic thermal spray coating (TSC) of aluminum, zinc, and their alloys and composites for the corrosion protection of steel.
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Duplex systems, also known as painting over hot dip galvanized steel, are extremely effective corrosion protection systems. However, careful surface preparation techniques need to be used to alleviate potential coating failures. The age and characteristics of the galvanized coating should be used to determine what type of surface preparation is needed. Surface preparation should develop an anchor profile for the paint without removing the zinc coating.
Reinforced concrete is the most common building material in water and wastewater treatment facilities. It is very common to see unprotected concrete in severely corrosive environments or corroding reinforcing steel that has been exposed due to construction defects or coating failures. The decision to coat new and existing concrete structures can be very difficult for owners due to the cost, turn-around times for putting structures back into service, and lack of confidence in certain protective coatings.
Successful coating and lining application on concrete substrates are contingent, in part, on the basic design and installation of the concrete itself. Protective coatings and linings are effected by the amount and movement of water in the concrete, the compressive and tensile strength of the concrete and the concrete's ability to resist cracking from internal and external forces. Through attention to sub-grade conditions, water cement ratios, aggregate grading and content, and finish and cure techniques, probability of successful coating and lining application can be greatly increased.
This paper studies empirical and correlation modelling of corrosion test-data for detailing C10H18N2Na2O10 (ethylenediaminetetraacetic disodium salt: EDTA-Na2) performance on concrete steel-rebar corrosion in 3.5% NaCl medium simulating saline/marine environment.
DOWNLOADABLE HISTORICAL DOCUMENT - Electrochemical realkalization (ER) for conventionally reinforced concrete structures. Common industry practices for the application of ER. Part II of 2. Part I (Item 24214) is on electrochemical chloride extraction.