FOAMED BITUMEN PRODUCTION AND APPLICATION OF MIXTURES EVALUATION AND PERFORMANCE OF PAVEMENTS

R H Bowering, Christophe Martín

Association of Asphalt Paving Technologists Proc · 1976 · 45 citations · 0 references

Concepts

Abstract

In recent years considerable experience has been gained in Australia with the construction of pavements incorporating foamed bitumen. This paper presents an overview of foamed bitumen technology in which production, testing procedures and properties of foamed bitumen mixtures are discussed. It is shown that the quality of foam is important and that properties of foamed mixtures are different to those of cold mixtures produced with other materials such as emulsions or cutbacks. Laboratory studies on numerous mixtures are reported and layer equivalency values are discussed for those mixtures using measured cohesion values or elastic moduli.