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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Corrosion Protection of Reinforcing Provided by Polymer-Impregnated Concrete
Author(s): David W. Fowler, Donald R. Paul, and Piti Yimprasert
Publication: Journal Proceedings
Appears on pages(s): 520-525
Keywords: bridge decks;cholorides;concrete piles;concrete slabs;corrsion;corrsion resistance;impregnating;plastics, polymers and resins;polymer concrete; protective coatings;reinforced concrete;reinforcing steels;salt water; seawater.
Abstract:The protection against corrsion provided reinfocing bars by polymer-impregnated concrete (PIC) was investigated. Partially-impregnated slabs and fully-impregnated piling specimens were used in the investigation. The slabs were sprayed with salt water for 20 months and the pilings were immersed in seawater for up to 28 months. The bars from the control slabs had about 24 times more surface area corrsion than bars from the treated slabs. The chloride content in the treated slabs ranged from 4.6 percent to 38.2 percent of that in the control slabs. The bars from the control piles had corrosion ranging from 10 percent to 39 percent over the surface area while the PIC specimens had corrsion over 0.7 percent or less of the bar area. The chloride content of the PIC piles ranged from 3.4 percent to 8.5 percent of the chloride in the controls. In the concrete adjacent to the reinforcing, the chloride contents in the impregnanted piles were less than the corrsion threshold.
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