ABSTRACT
ABSTRACT: More than 70% of Dutch primary road network is surfaced with PA (Porous Asphalt Concrete). Raveling is in most cases by far decisive for PA service life.
This paper gives a summarized overview of the development and validation of a mechanistic Lifetime Optimization Tool for PA, LOT. LOT is based on meso scale modeling, i.e. the scale of stone chippings. The paper discusses a laboratory research into the behavior of the mixture components. The forces acting on individual surface stones during tire passages are also discussed. Finally FE models of the PA mixture’s structural geometry are discussed.
