Present State and Future of Alkali-Activated Slag Concretes

ABOUT THE 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.

International Concrete Abstracts Portal

  


Title: Present State and Future of Alkali-Activated Slag Concretes

Author(s): B. Talling and J. Brandstetr

Publication: Special Publication

Volume: 114

Issue:

Appears on pages(s): 1519-1546

Keywords: activators; alkalies; binders (materials); blast furnace slag; compressive strength; concretes; corrosion; costs; microstructure; reviews; silicates; slag cements; Materials Research

Date: 5/1/1989

Abstract:
Presents the latest publications dealing with the development and practical application of activated slag clinker-free concretes with special reference to less known papers and recent information. The finely ground slag, usually granulated blast furnace slag, is activated by the solution of sodium or potassium hydroxide, carbonate, or preferably silicate (soluble glass) of appropriate concentration and silicate modulus. The difference of microstructure between portland cement concrete and alkali-activated slag concrete and its consequences for their properties, especially for very high strengths and corrosion resistance, is discussed. The use of nonstandard aggregate and other industrial by-products, as well as the low costs of this type of concrete are presented. Examples of applications of alkali-activated slag concrete of different composition are given. Some problems connected with the present use of alkali-activated concrete are discussed together with the most promising applications for the future.