Improvement for Anti-Water Stability of Asphalt Pavement, Utilizing Foundry Dust Containing Sodium Silicate as Filler Materials

Abstract

  It is known that in using foundry dust as asphalt filler for pavement material, when the dust is contaminated with sodium silicate stability against water becomes poor but that it can be improved by adding slacked lime. This is a study made to clarify how slacked lime improves the stability and to quantify the amount of addition necessary as a commercial standard.