STUDIES OF THE USE OF FLY-ASH FOR ROAD PAVEMENTS

ESTUDAS RELATIVOS A APLICACAO DE CINZAS VOLANTES NA PAVIMENTACOA DE ESTRADAS

With a view to analyzing the possibility of using fly-ash from the thermal station of Tapado do Outeiro in road pavements, it was decided to construct some experimental sections in which fly-ash would be used as a soil stabilizing agent. For one of the sections, the ash was used mixed with lime; in the third section used for reference purposes, nothing was added to the soil (a clayey residual soil). Simultaneous laboratory studies were conducted to control the compaction of the stabilized base-courses and observe their behaviour by means of in-situ CBR tests and simple compression tests on specimens taken from the pavements, both tests being carried out at 28 and at 90 days. The results obtained are discussed taking into account the construction and loading conditions of the experimental sections and the aims of the study.

• Corporate Authors:

  National Civil Engineering Laboratory, Portugal

  Avenida do Brasil
  Lisbon 5,   Portugal 
• Authors:
  • Pereira da Silva, D
• Publication Date: 1968-5

Language

• Portuguese

Media Info

• Features: Figures;
• Pagination: 12 p.

Subject/Index Terms

• TRT Terms: Base course (Pavements); California bearing ratio; Compaction; Compression tests; Experimental roads; Fly ash; Lime fly ash; Pavements; Soil stabilization; Stabilized materials; Testing
• Old TRIS Terms: Cbr testing; Compressive strength tests; Highway pavement
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00081046
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Mar 26 1975 12:00AM