CCEER-03-6: Creep and Shrinkage Losses in Highly Variable Climates
Loading...
Authors
Mortensen, Cole
Saiidi, Mehdi S.
Ladkany, Samaan
Issue Date
2003-09-01
Type
Report
Language
Keywords
CCEER
Alternative Title
Abstract
This study had several objectives, including studying the effects of aggregate type and climate on creep and shrinltage losses, determining and quantifying tile effects of moist-c~rring concrete (after prestressing), and proposing necessary revisions to the current AASHTO equations for creep and shrinkage loss prediction. 111 Reno and Las Vegas, twelve post-tensioiled concrete beams made with local aggregates were monitored for creep and shrinkage losses along with a niunber of cylinder specilnens that were monitored for creep and shrinkage strains independently. At each location, hvo box girders were left indoors exposed to a more stable environment, and tvo box girders and two solid beams were left outdoors exposed to precipitation and a wider varying enviromlient. Of each pair of beams, one beam was kept moist for two weeks after presu-essing (moist-curing) and one beam was not. Tesring 2nd analysis found that moisn:re ca
Description
Report No. CCEER-03-6
Citation
Publisher
License
In Copyright