Applicability of municipal solid waste incineration ash on pavements base layers

Abstract

This study presents the characteristics of Municipal Solid Waste (MSW) incineration ash obtained from electric energy generation plants, to evaluate the MSW ash applicability in road pavement base layers through the ash mixture with a non-lateritic regional clay soil. Chemical, physical, mechanical tests and the mechanistic-empirical design for a typical pavement structure were carried out on the pure soil and also in the soil mixture with the addition of different ash content (20 and 40%). Fly ash reduced the expansion of the material, showing an increase in the CBR and resilient modulus value. The results were satisfactory, being dependent on the content and type of ash used, highlighting the positive work of MSW fly ash for use on pavement base layers.