Evaluation of Performance of High Calcium Fly Ash as a Mineral Filler in Mix Design of Microsurfacing of Road Pavement

Abstract

In the present research work, traditional mineral filler, high calcium Fly Ash, is used in the mix design of micro surfacing is evaluated with possibility of replacing it with other environmental friendly and cost effective selected fillers. The chemical analysis and material testing performed on high calcium Fly Ash filler indicate its suitability for incorporation in the mix design. The optimum mix design for microsurfacing Type II and Type III is determined through trial and error method. Also, the performance of a laboratory design mix is evaluated with field application. The field experimentation indicate that the mineral filler showed good performance for the test conducted on field after 24 hours and 6 months of application. The results evaluated in the field for skid resistance and surface texture indicate high calcium Fly Ash can be utilized for microsurfacing of road pavement.

Enhancing the knowledge of quick setting asphalt emulsion applications using systematic scientific and engineering approaches

“…Shafaghat, Lonbar, & Nazirizad, (2016) used the cohesion tests as part of a study to determine the effect of microsurfacing material types on the performance of microsurfacing mixtures. Internationally, the cohesion test was used in India to determine the effects of high performance fly ash as a mineral filler in a microsurfacing mix design (Patel & Gujar, 2017). Therefore, the cohesion test can be considered a fairly accurate indicator of the performance of a microsurfacing or slurry seal mix design.…”