Determination of coefficient of thermal expansion effects on Louisiana’s PCC pavement design.

Shin, Hak-Chul; Chung, Yoonseok; Louisiana State University (Baton Rouge, La.). Department of Civil and Environmental Engineering

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Determination of coefficient of thermal expansion effects on Louisiana’s PCC pavement design.

2011-12-01
By Shin, Hak-Chul ; Chung, Yoonseok

[PDF-2.44 MB]

English

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Creators:

Shin, Hak-Chul ; Chung, Yoonseok

Shin, Hak-Chul ; Chung, Yoonseok Less -
Corporate Creators:

Louisiana State University (Baton Rouge, La.). Department of Civil and Environmental Engineering
Corporate Contributors:

Louisiana. Dept. of Transportation and Development ; Louisiana Transportation Research Center ; United States. Federal Highway Administration

Louisiana. Dept. of Transportation and Development ; Louisiana Transportation Research Center ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Additives Cement Additives Concrete Construction--Joints Expansion Expansion (Heat) Expansion Joints Mechanical Properties Of Pavements Expressed Numerically Pavement Design Pavements--Louisiana--Design And Construction Portland Cement Portland Cement--Additives Portland Cement--Louisiana--Testing Portland Cement Concrete Testing Thermal Expansion
Publication/ Report Number:

FHWA/LA.11/451
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Edition:

Final report; Feb. 1, 2007-Apr. 31, 2009.
Corporate Publisher:

Louisiana Transportation Research Center
Abstract:

With the development of the Mechanistic Empirical Pavement Design Guide (MEPDG) as a new pavement design tool, the

coefficient of thermal expansion (CTE) is now considered a more important design parameter in estimating pavement

performance including cracking, faulting, and international roughness index (IRI). This study was conducted to measure

typical CTE values of Portland cement concrete (PCC) pavements having various aggregates used in Louisiana and to

investigate the relationship between CTE and other critical variables such as aggregate types, age of concrete, dimension of

specimen, amount of course aggregate in mixture, relative humidity, and concrete mechanical properties. AASHTO TP 60-00

was used for measuring concrete CTE and a recently new standard test method, AASHTO T 336-09, was adopted to replace

the TP 60-00. A calibration factor was developed to convert the CTE values measured by AASHTO TP 60-00 to that of the

new standard testing method. From the analysis of measured data, it was found that aggregate types, coarse aggregate

proportion, and relative humidity have a significant influence on CTE. This finding was confirmed with a statistical analysis of

variance (ANOVA). CTE tests and mechanical property tests were also performed at different ages to provide input data for

Level 1 design of MEPDG. Based on the results of the MEPDG analysis, current maximum joint spacing [20 ft. (6.1 m)] in

jointed plain concrete pavement (JPCP) can be adjusted to 15 or 18 ft. (4.6 or 5.5 m) when Kentucky limestone is used as a

coarse aggregate.
Format:

PDF
Funding:

07-2C / 736-99-1450
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:8633084f0d2e6f80ee1f8afc0ee1d2f66ce90bf624c167c11e8e1a3c2aa8e1cc
Download URL:

https://rosap.ntl.bts.gov/view/dot/23571/dot_23571_DS1.pdf
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Determination of coefficient of thermal expansion effects on Louisiana’s PCC pavement design.

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