Document Type

Article

Publication Date

2010

Journal or Book Title

Baltic Journal of Road and Bridge Engineering

Volume

5

Issue

3

First Page

132

Last Page

138

DOI

10.3846/bjrbe.2010.19

Abstract

In this paper, the early-age response of a Jointed Plain Concrete Pavement (JPCP) to temperature and moisture variations at the time of paving and immediately following construction is discussed. A newly constructed JPCP on US-30 near Marshalltown, Iowa, USA was instrumented and monitored during the critical time immediately following construction to identify its early-age behavior with respect to pavement deformation due to temperature and moisture variations. The instrumentation consisted of Linear Variable Differential Transducers (LVDTs) at the slab corner, center, and edges, and thermocouples and humidity sensors installed within the slab depth. The slab deformation associated with temperature and moisture variations were quantified using field-measured vertical displacements and pavement surface profiles. The positive temperature gradients during setting times and the negative moisture difference after setting times caused permanent upward curling and warping in the instrumented pavement. The relative corner deflection of the slab to center or mid-edge calculated using the slab profile and LVDT measurements show similar trends.

Research Focus Area

Construction Engineering and Management

Comments

This is a manuscript of an article from Baltic Journal of Road and Bridge Engineering 5 (2010): 132, doi: 10.3846/bjrbe.2010.19

Copyright Owner

Vilniaus Gedimino technikos universitetas

Language

en

File Format

application/pdf

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