Sustainable Paving Solutions: Laboratory Analysis of Geopolymer Paver Blocks with Reclaimed Asphalt Pavement Aggregates

International Journal of Civil Engineering

© 2025 by SSRG - IJCE Journal

Volume 12 Issue 3

Year of Publication : 2025

Authors : Yeswanth Paluri, S.R.R. Teja Prathipati, Vijay Kunamineni, V. Bhavitha Chowdary, Tottaramudi Pavan Kumar

10.14445/23488352/IJCE-V12I3P118

How to Cite?

Yeswanth Paluri, S.R.R. Teja Prathipati, Vijay Kunamineni, V. Bhavitha Chowdary, Tottaramudi Pavan Kumar, "Sustainable Paving Solutions: Laboratory Analysis of Geopolymer Paver Blocks with Reclaimed Asphalt Pavement Aggregates," SSRG International Journal of Civil Engineering, vol. 12,  no. 3, pp. 191-199, 2025. Crossref, https://doi.org/10.14445/23488352/IJCE-V12I3P118

Abstract:

India's urban infrastructure faces a critical gap in pedestrian and non-motorized transport facilities. While Concrete Paver Blocks (CPBs) are commonly used for this purpose, their production has significant environmental impacts. This investigation examines geopolymer concrete as a viable, sustainable substitute for conventional paver blocks. Geopolymer Paver Blocks (GPBs) are synthesized utilizing fly ash, Ground Granulated Blast furnace Slag (GGBS), and an alkaline activating agent. Reclaimed Asphalt Pavement (RAP) aggregates were integrated to augment sustainability further as a substitute for traditional aggregates. The study evaluated the mechanical, durability, and abrasion properties of the developed GPBs, comparing them to traditional CPBs. Incorporating Reclaimed Asphalt Pavement (RAP) aggregates contributed to a decrease in the workability of freshly mixed concrete. Empirical investigations demonstrated that integrating RAP aggregates led to a deterioration in the mechanical strength characteristics of Geopolymer Binders (GPBs); however, they still adhered to the requirements as per IS 15658: 2021. Notably, GPBs exhibited enhanced durability attributes compared to traditional concrete. Moreover, the research found that the abrasion loss of GPBs was less than that of CPBs, although an increase in RAP content was associated with heightened abrasion loss. The insights gained from this study reinforce the potential of incorporating RAP into GPBs as a significant step toward sustainable infrastructure development, thereby reducing the carbon footprint associated with conventional cement-based materials.

Keywords:

Geopolymer concrete, Geopolymer paver blocks, Reclaimed asphalt pavement, Sustainable concrete.

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