Prestressed Concrete Members Affected by Alkali-Silica Reaction

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Title: Prestressed Concrete Members Affected by Alkali-Silica Reaction

Author(s): C. A. Rogers and T. Tharamabala

Publication: Concrete International

Volume: 12

Issue: 8

Appears on pages(s): 35-39

Keywords: alkali-aggregate reactions; beams (supports); bending moments; bonding; compressive strength; cracking; fracturing; petrography; prestressed concrete; railroad ties; tests; General

Date: 8/1/1990

Abstract:
Describes a program of testing railroad ties that exhibited cracking due to alkali-aggregate reaction. The program was undertaken to determine a relationship between a system of visual condition rating and the strength of the ties. This relationship is meant to give approximate estimates of load capacity of similarly prestressed girder bridges.