Title

Effect Of Daily Temperature Variations On The Continuous Deflection Profiles Of Airfield Jointed Concrete Pavements

Keywords

Airfield jointed concrete pavement; Continuous deflection profile; Curling; Daily temperature variation; Finite element analysis; Rolling dynamic deflectometer

Abstract

Compared with highway roads primarily damaged by repeated vehicle loads, airfield pavements suffer more from heavier aircraft loading, along with environmental factors. In particular, a pavement temperature is one of the critical factors affecting the behavior and response of airfield jointed concrete pavements (JCP). Temperature variations cause curling and expansion/contraction of a slab, which may ultimately influence the in-situ deflection measurements. Along with the pavement temperature, it is well known that other parameters such as subsurface conditions (i.e. stiffness of base/subbase layers), setting temperature of concrete, slab dimensions, and joint/crack width also affect the behavior and response of JCP. The main objectives of this paper are to characterize: (1) the behavior of airfield JCP due to temperature variations in terms of pavement "deflections" (defined as the dynamic movements of a pavement induced by dynamic loading); and (2) the effects of various affecting parameters on the vertical displacement profile of JCP slabs. The primary research means include in-situ pavement deflection measurements at different times of a day. For this purpose, a rolling dynamic deflectometer (RDD) which measures the continuous deflection profiles along a selected pavement section (100% coverage of a tested path) was employed. Also, extensive two-dimensional numerical simulations were performed to provide supporting evidence for the behavior trends generated by RDD.

Publication Date

12-30-2014

Publication Title

Construction and Building Materials

Volume

73

Number of Pages

261-270

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.conbuildmat.2014.09.073

Socpus ID

84908273467 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84908273467

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