Evaluation of the Performance of the Microsurfacing Incorporating a Latex Adhesive

The use of microsurfacing layer can provide some good preventive characteristics for asphalt pavement surfaces. Various additives can be used to improve the properties of microsurfacing layers. One of these acceptable additives is latex adhesive. It is claimed that latex adhesive as a polymeric material can withstand environmental factors such as alkaline conditions, acidic conditions, the presence of leachate and oil spilled on road surfaces. In this study, the effect of using latex adhesive in different amounts (4 and 5 %) on wet adhesion properties, setting time, compatibility of materials, abrasion resistance in wet track abrasion and sand adhesion of microsurfacings have been investigated. For this purpose, laboratory samples with different amounts of cement (1.5 and 3 %) and bitumen (8, 10 and 12 %) were prepared and tested. The results showed that the use of latex adhesive improves the behavior of microsurfacing in different percentages of bitumen and cement.