Effect of adding cement and reclaimed asphalt pavement to the base layer of a road.

The common procedure for improving the mechanical qualities of the base layer of the road is cement stabilization. Reclaimed Asphalt Pavement (RAP) is available. The reclaimed material can be used in road construction in a sustainable and environmentally responsible manner. The objective of the study was to determine how the content of RAP and cement impacted the strength of a cement-treated base (CTB). The following mixtures of virgin/rap aggregate combinations were examined in this study: 100/0, 75/25, and 50/50 percent. Physical parameters, compaction features, and performance evaluations such as Unconfined Compressive Strength (UCS) during 7 days of curing were examined using cement with content ranging from 0 to 6%. According to the findings, recycled asphalt pavement requires more cement to meet the standards as a base layer for high-volume roadways. Furthermore, it has been discovered that when cement density rises, the optimum moisture content (OMC), and the maximum dry density (MDD) were related to this direction. The optimal proportion of Portland cement for the production of (CTB) is between 4% and 6% for all mixtures. [ABSTRACT FROM AUTHOR]