PREDICTION OF BASECOURSE MOISTURE CONDITIONS FOR PAVEMENT DESIGN PURPOSES

This report presents the results of the analysis of moisture content data collected over the period 1969 to 1980 from flexible pavements in Western Australia. The data was obtained from forty four moisture stations spread throughout the state. The results of pavement testing provided centreline and outer wheel path moisture contents in both the base course and the subgrade. The subject of this report is the analysis of the base course moisture data. The initial analysis consisted of the extraction of the mean and eighty fifth percentile moisture contents. As a measure of the difference in the magnitude and the variability of the centreline to the outer wheel path moisture contents, as indicated by the means and standard deviations, the mean ratios of the means and standard deviations were calculated. The major part of this report concerned the regression analysis. Regression analysis of both outer wheel path moisture contents and centreline moisture contents resulted in design equations for the prediction of base course moisture contents (A). (TRRL)

• Corporate Authors:

  Western Australia Main Roads Department, Australia

  Materials Engineering Division, Waterloo Crescent
  East Perth, West Australia 6000,   Australia 
• Authors:
  • BOTT, MLH
• Publication Date: 1980-6

Media Info

• Features: Figures; References; Tables;
• Pagination: 13 p.

Subject/Index Terms

• TRT Terms: Base course (Pavements); Flexible pavements; Forecasting; Moisture content; Pavement design; Regression analysis; Soil water; Statistical analysis; Subgrade (Pavements)
• Uncontrolled Terms: Centre; Side
• Geographic Terms: Australia
• Old TRIS Terms: Subgrade moisture
• ITRD Terms: 8006: Australia; 2990: Basecourse; 6401: Centre; 2944: Flexible pavement; 132: Forecast; 5920: Moisture content; 3055: Pavement design; 6588: Regression analysis; 9074: Side
• Subject Areas: Data and Information Technology; Design; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00330301
• Record Type: Publication
• Source Agency: ARRB
• Report/Paper Numbers: Rpt No. Med 80/22 Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: May 21 1981 12:00AM