Thermal suspectability analysis of the reuse of fly ash from cellulose industry as contribution filler in bituminous mixtures.

The increased population has accelerated pavement deterioration of and boosted production of residues, generating a constant environmental problem. One of the main problems of pavements is a failure to develop union between bituminous mastic ligand and aggregate. The following study evaluates the use of ash from cellulose incineration as a contribution filler to improve thermal susceptibility of pavements in different climatic zones. The applied methodology for dosage was based on volumetric criteria and state curves. The obtained results showed that reusing this residue in determined conditions (C v /C s  ≤ 1) offers lower wear loss to 35% of temperatures between −10 and 60 °C, due to the C v /C s  = 0.75 ratio that maximizes the cohesive properties of the mixture. Therefore, we showed that this type of industry residue can be reused without complication in zones of certain climatic criteria and that it provides improved properties to the asphalt mix compared to conventional mixes. [ABSTRACT FROM AUTHOR]