Observed evidence of subgrade moisture influence on pavement longitudinal profile

Abraham Bae, Shelley Marie Stoffels, Charles E. Antle, Seung Woo Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The relationship between subgrade moisture parameters and pavement profile was explored for 34 asphalt pavements of the seasonal monitoring program (SMP) in the long-term pavement performance (LTPP) program. Volumetric moisture content was quantified in terms of the moisture index (MI), representing moisture as reasonably related to subgrade performance. Using power spectral density (PSD), roughness was evaluated in 21 individual wavebands. From statistical analysis, it was concluded that subgrade moisture significantly affects roughness in the wavebands of 14.9 to 31.2 m and 24.0 to 31.2 m for nonfreezing sites, and in the waveband of 14.9 to 24.0 m for freezing sites. At nonfreezing sites, as the magnitude and variation of moisture increase, pavement surface profile deteriorates quickly. At freezing sites, it was found that moisture variation by freezing contributes to roughness deterioration. Moreover, it was found that pavement thickness and the percent passing the top 0.002 mm of subgrade are significant factors accelerating roughness progression at nonfreezing and freezing sites, respectively.

Original languageEnglish (US)
Pages (from-to)1050-1063
Number of pages14
JournalCanadian Journal of Civil Engineering
Volume35
Issue number10
DOIs
StatePublished - Oct 1 2008

Fingerprint

subgrade
pavement
Pavements
Moisture
moisture
roughness
freezing
Freezing
Surface roughness
asphalt
Asphalt pavements
Power spectral density
moisture content
statistical analysis
Deterioration
Statistical methods
monitoring
Monitoring

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Environmental Science(all)

Cite this

Bae, Abraham ; Stoffels, Shelley Marie ; Antle, Charles E. ; Lee, Seung Woo. / Observed evidence of subgrade moisture influence on pavement longitudinal profile. In: Canadian Journal of Civil Engineering. 2008 ; Vol. 35, No. 10. pp. 1050-1063.
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Observed evidence of subgrade moisture influence on pavement longitudinal profile. / Bae, Abraham; Stoffels, Shelley Marie; Antle, Charles E.; Lee, Seung Woo.

In: Canadian Journal of Civil Engineering, Vol. 35, No. 10, 01.10.2008, p. 1050-1063.

Research output: Contribution to journalArticle

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