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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: Correlation of Creep and Shrinkage Models with Field Observations
Author(s): I. N. Robertson
Publication: Special Publication
Appears on pages(s): 261-282
Keywords: bridge behavior; creep; field observation; long-term
instrumentation; monitoring; prediction models; shrink-age
Abstract:This paper presents a comparison between laboratory creep and shririkage data and the performance of a long-span box-girder bridge structure. As part of a long-term instrumentation and monitoring program on the North Halawa Valley Viaduct, a number of laboratory creep and shrinkage tests were performed on the concrete used in the viaduct. The data are compared with current theoretical models for the prediction of creep and shrinkage. These models all underestimate the long-term effects on the concrete used in this structure. This is attributed in part to the nature of the basalt aggregates available on the Hawaiian Islands. It is shown that with as little as 28 days of data from creep and shrinkage tests, the prediction models can be modified to provide a far more accurate prediction of the long-term performance of the structure.
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