PAVEMENT PERFORMANCE AND DEFLECTION STUDIES ON MALAYSIAN ROADS

Details are given of the performance over a period of eleven years of normally-constructed road pavements in Malaysia. Current pavement-design recommendations are compared with the thickness and quality of the pavements studied. Pavement deflection characteristics are related to performance under traffic, and deflection-criterion curves are given for reads with crusher-run bases and bitumen-macadam surfacings in the Malaysian environment. It was found that typical Malaysian bitumions overlays reduced deflections less than might be expected from experience gained elsewhere. In spite of the high rainfall in the country and the permeable pavement construction employed, it was found that subgrade moisture contents are rarely more than 2 per cent wetter than the optimum moisture content in the British Standard 2.5 kg rammer compaction test are usually significantly drier than this. It is concluded that the pavement design recommendations for flexible pavements set out in Road Notes 29 and 31 can be applied with confidence in environments similar to that of Malaysia, and that the use of sub-bases in Malaysia would be advantageous. /Author/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • Bulman, J N
  • Smith, H R
• Publication Date: 1977

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 36 p.

Subject/Index Terms

• TRT Terms: Bituminous macadam; Deflection; Moisture content; Overlays (Pavements); Pavement design; Pavement performance; Pavements; Permeability; Rainfall; Soil compaction test; Subgrade (Pavements); Thickness
• Uncontrolled Terms: Pavement thickness
• Old TRIS Terms: Compaction tests; Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00172869
• Record Type: Publication
• Report/Paper Numbers: TRRL Lab. Rpt. 795
• Files: TRIS, ATRI
• Created Date: Apr 12 1978 12:00AM