ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The hydration of Portland cement and the corrosion of steel would seem at first sight to be two very different processes. However, it is observed that many additives which accelerate cement hydration also promote corrosion of steel, and those which retard hydration are usually corrosion inhibitors. There is found to be a mechanistic similarity between the two processes in that the retardation or inhibition of both processes depends on the existence of dense, impermeable films or coatings which protect the reactive surfaces beneath. Large, highly charged anions which have insoluble calcium and iron salts are good retarders of both processes. Mobile anions with highly soluble calcium and iron salts readily penetrate and cause breakdown of protective films, and are found to accelerate both processes. Such considerations are of importance in the search for cement hydration accelerators for use in reinforced concrete.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01161200
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