01478920

Component

https://doi.org/10.3141/2342-07

http://scholar.google.com...dani&publication_year=2013

A ruggedness study on the AASHTO T 336 coefficient of thermal expansion of concrete test method was performed to evaluate the factors most likely to affect the test results. Seven factors were evaluated: time at temperature extremes, water level, position of the linear variable differential transformer, number of segments, saturation criterion, specimen length, and temperature of the first segment. Two concrete mixtures were used in this study, four laboratories participated, and five commercially made coefficient of thermal expansion devices from two manufacturers were used. On the basis of the results obtained, saturation criterion was found to be the most significant factor. The other factors were found not to have a significant impact on the test results, have already been addressed in the most current version of the test method, or, in the authors’ opinion, do not warrant being addressed.

01494308

13-2167

English

p 54–60

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309263399

Print

Figures (2) ; References (10) ; Tables (9)

Coefficients; Concrete tests; Precision; Properties of materials; Test procedures; Thermal expansion

American Association of State Highway and Transportation Officials

Coefficient of variation; Ruggedness evaluation

Bridges and other structures; Highways; Materials; Pavements; I32: Concrete

PRP, TRIS, TRB, ATRI

Feb 5 2013 12:29PM

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