Review of: "Effective use of Waste Materials: A Case Study of Utilization of Fly Ash in Flexible Pavement Structures"

Abstract

… In the case of flexible pavement, fly ash is used can be used in surface, base, and sub-grade layers…", This sentence needs to be clarified; either the authors use "fly ash is used in …" or "fly ash can be used in …". 3-Introduction: "Classes of Fly Ash…………………………….applications in different fields of civil engineering."This part contained incorrect information.The reviewer advises the authors to rewrite this part based on ASTM C618. 4-Introduction:The temperature of the loss on ignition must be added to Table 1 (at the bottom). 5-The paper has many studies, but it is preferable to add figures or tables to aid the understanding of these studies.