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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: Resistance to Deicer Scaling-Concretes Containing ASTM C 989 Ground Granulated Blast-Furnace Slag
Author(s): M. D. Luther, D. J. Imse, and L. L. LaFollette
Publication: Special Publication
Appears on pages(s): 73-90
Keywords: air entrainment; blast-furnace slag; chlorides;
Abstract:A paper published at the 1994 Durability of Concrete Conference in Nice, France (1) dealt with 309 kg/m3 (520 lb/yd3) cementitious materials content residential-concrete mixtures and up to a one-years chloride-exposure period. The current paper updates the 1994 information, and it expands upon the range of evaluated mixtures. Now presented are mixtures with 279-335 kg/m3 (470-564 lb/yd3) cementitious materials content, and up to six-year field exposures. Concretes were tested in the laboratory or in the field. The work focused upon the deicer scaling resistance of concretes containing ASTM C 989 Grade 100 or Grade 120 ground granulated blast-furnace slag (GGBFS). The laboratory investigations used the ASTM C 672 test, which ponds a chloride solution on the test specimens during 50 freezing-and-thawing cycles. This work evaluated 0%, 35%, 35%, 50%, and 65% GGBFS amounts,. Replacing portalnd cement. The field investigation used 0%, 25%, 35%, and 65% GGBFS amounts cast into slabs, which were exposed to deliberately applied chloride solution and chlorides from parked vehicles. Regarding the effect of GGBFS amount on scaling resistance, and relative to the control concretes, 25% GGBFS scaled less, 35% scaled less in the laboratory and the same in the field, 50% scaled comparably with some variation (no 50% field condition existed), and 65% scaled, overall, somewhat more in the laboratory and less in the field.
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