Design and performance of some selected concrete roads in the bangkok area

The department of highways, Thailand, first used rigid pavements in the bangkok metropolitan area in 1960 when it hired an American consulting firm to design the bangkok nakorn pathom national highway. This first concrete road has served traffic for about 20 years. The present adt is about 20,000 vpd with 40 per cent heavy buses and trucks. There are three groups of concrete pavement structures in the vicinity of bangkok. Firstly, a concrete slab resting directly over the soil aggregate subbase; the bangkok nakorn pathom national highway is typical of this category. Secondly, a section with a sand cushion layer between the concrete slab and stabilised soil subbase; part of the wipawadee rangsit expressway is an example of this type. Thirdly, a section with a sand cushion layer between the concrete slab and soil aggregate subbase. Most concrete roads in the bangkok area fall into this third group. In this paper, the thickness design of the concrete pavements and the performance of each type is described in detail. Principally, thickness design tends to follow the pca method, especially the 1951 pca design chart. Overload analysis is also included (a).

Language

  • English

Media Info

  • Pagination: 188-99
  • Monograph Title: Study on bitumen with a view to improving road surfacing
  • Serial:
    • Volume: 13
    • Issue Number: 3

Subject/Index Terms

Filing Info

  • Accession Number: 01427388
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 2:17PM