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Document Type

Original Article

Abstract

Increasing demands for sustainable urban infrastructure have made pervious concrete emerge as a promising pavement material due to its ability to combine load-bearing capacity with stormwater infiltration. This paper explores the synergetic effect of nanomaterials on the mechanical, hydraulic and durability characteristics of pervious concrete made with three different coarse aggregates: crushed limestone (CL), river aggregate (RA), and recycled concrete aggregate (RCA). Twelve concrete mixes were prepared using varying combinations of nano-modified mixes to investigate their influence on key properties, including dry density, void content, compressive strength, tensile strength, permeability and abrasion resistance. The results showed that river aggregate mixes, particularly those modified with nano-silica and nano-alumina (e.g., RA-1), gained the highest compressive (34.60 MPa) and tensile (3.16 MPa) strengths, alongside significant improvement in abrasion resistance. Crushed limestone mixes showed an optimal balance between strength and permeability, while recycled concrete aggregate (RCA) mixes exhibited acceptable performance. Abrasion resistance was significantly improved by nano-modification, where some of the samples lowered mass loss on the surface by more than 40%. Statistical analysis using the general linear model ANOVA revealed the aggregate type was the dominant factor across most performance metrics, while nano-modification contributed significantly to durability and permeability control. These results indicate the importance of incorporating nano-modification and aggregate selection to produce high-performance, durable, and permeable concrete pavement systems.

Receive Date

21/07/2025

Revise Date

29/09/2025

Accept Date

05/10/2025

Publication Date

10-5-2025

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