Properties of Concrete Enhanced with Various Types of Nanomaterials

Volume Title: ICASGE2025

Paper ID : 1007-ICASGE-FULL (R1)

Department of Structural Engineering, Faculty of Engineering, Cairo University, Giza, Egypt

Nanotechnology has revolutionized the construction industry by enhancing material manipulation capabilities and redefining concrete performance expectations. This research investigates the effects of various nanomaterials—specifically Nano Silica (NS), Nano Titanium Dioxide (NT), and Nano Alumina (NA)—on the properties of concrete, with the aim of identifying the most effective type for enhancing mechanical strength and durability characteristics. An extensive experimental program was conducted, comprising thirteen concrete mixtures designed to evaluate each nanomaterial individually at varying replacement levels (0%, 0.5%, 1%, 2%, and 3%). The performance of these mixtures was rigorously assessed through a series of tests, including compressive strength, splitting tensile strength, flexural strength, initial surface absorption, sorptivity, and thermogravimetric analysis. Furthermore, Scanning Electron Microscopy (SEM) was employed to provide detailed insights into the microstructural changes induced by the nanomaterials. The results demonstrated significant enhancements in concrete properties with the incorporation of nanomaterials, underscoring their potential to improve infrastructure sustainability and overall performance.

Nano silica; Nano Titanium; Nano Alumina; mechanical properties; Mass transport; Microstructural analysis

Materials Properties and Testing (MAT)