In-situ structural analysis of lightweight cellular concrete subbase flexible pavements

Construction and Design Guidelines for Lightweight Cellular Concrete as Pavement Subbase Material

“…Different sensors were installed to monitor the pavement response and environmental conditions. The following sections summarize the findings from the construction process to postconstruction performance tracking [14,15].…”

“…Regarding structural capacity, Oyeyi et al documented that using LCC as a subbase material can significantly reduce subgrade pressure caused by traffic by three times compared to unbound granular subbase pavements (Figure 1) [15]. The pressure reduction depends on factors such as LCC layer thickness, pavement thickness, load magnitude, load distribution, tire pressure, and material characteristics.…”

“…Based on the same maintenance and rehabilitation (M&R) schedule in [16], a preliminary life cycle cost assessment (LCCA) was performed. Figure 2 demonstrates the results [17]. This study considered only initial and M&R costs, but not the insulating capabilities of LCC which could contribute to the roadway longevity over frost susceptible subgrades.…”