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: Importance of the Surface Layer for the Durability of Concrete Structures

Author(s): A. Meyer

Publication: Symposium Paper

Volume: 100

Issue:

Appears on pages(s): 49-62

Keywords: alkalinity; compressive strength; concrete durability; concretes; freeze-thaw durability; porosity; properties; surface properties; Structural Research

DOI: 10.14359/2608

Date: 4/1/1987

Abstract:
The surface layer and the remaining core concrete of a structural member are already immediately after curing two different materials in composition. The difference in characteristic properties can be considerably increased by outside influences in the lifetime of the concrete building. We have to pay more attention to this fact because the surface layers are important with regard to the long-term behavior of concrete structures and the protection of steel reinforcement against corrosion. The effects on structure and characteristic properties of the surface layer by placing, compacting, and curing in the early states and later when subjected to different environmental conditions are studied and discussed. Some methods to test in practice the properties of the surface layer--strength, porosity, alkalinity, and frost resistance--are described.