Structural Behavior of Concrete Beams Affected by Alkali-Silica Reaction

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: Structural Behavior of Concrete Beams Affected by Alkali-Silica Reaction

Author(s): S. Multon, J.-F. Seignol, and F. Toutlemonde

Publication: Materials Journal

Volume: 102

Issue: 2

Appears on pages(s): 67-76

Keywords: alkali-silica reaction; beam; expansion; reinforcement

Date: 3/1/2005

Abstract:
A large experimental program about alkali-silica reaction (ASR) was carried out on beam specimens at the Laboratoire Central des Ponts et Chaussées (LCPC), with Electricité de France (EDF) as a partner. The aim was to provide data intended to validate a methodology of assessment of real structures affected by this expansive reactive mechanism. Three-dimensional deformations were measured on five 3 m-long plain or reinforced concrete beams undergoing partial drying over a period of 14 months. The paper points out the effect of a moisture gradient over the depth of the beams and the influence of reinforcement on the development of ASR-induced expansions. Tests on companion specimens (cylinders and prisms) were carried out to measure the material expansion and mechanical characteristics.