Campus Units

Geological and Atmospheric Sciences

Document Type

Conference Proceeding

Publication Version

Published Version

Publication Date

1996

Journal or Book Title

1996 Semisesquicentennial Transportation Conference Proceedings

First Page

4

Last Page

7

Conference Title

1996 Semisesquicentennial Transportation Conference

Conference Date

May 13-14, 1996

City

Ames, Iowa

Abstract

Concrete with dolomite coarse aggregate was obtained by coring existing Iowa highways. The concretes were of two types, those which were very durable under highway conditions and those which were low durability. Samples were experimentally deteriorated using wet/dry, freeze/thaw, and continuous soak conditions in solutions of magnesium chloride, calcium chloride, sodium chloride, magnesium acetate, magnesium nitrate, and distilled water in order to determine relative deterioration activities. Magnesium chloride was most destructive. Calcium chloride was next, and sodium chloride was relatively benign. Magnesium acetate produced severe crumbling and moderate fracturing, and magnesium nitrate caused moderately severe deterioration by crumbling and discoloration. Low durability concrete was somewhat more affected by distilled water freeze/thaw conditions than more durable material, but generally both types were severely damaged by magnesium and calcium salts. These results suggest that magnesium and calcium deicers may accelerate highway concrete deterioration.

Comments

This proceeding is published as Cody, R.D., Cody, A.M., Spry, P.G., and Gan, G.-L., 1996, Concrete Deterioration by Deicing Salts:An Experimental Study. 1996 Semisesquicentennial Transportation Conference Proceedings, Ames, Iowa, p. 4-7. Posted with permission.

Copyright Owner

Center for Transportation Research and Education

Language

en

File Format

application/pdf

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Article Location

 
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