Synthesis of nano Fe2O3 cement compositions for concrete shielding

Abstract

The world's most popular building material, concrete, is in constant demand. Because concrete is so widely used, the research trend to improve its sustainability and reduce its adverse effects during its production has gradually expanded. The future of contemporary concrete technology will be the addition of nanoparticles to concrete. Nanomaterials are now used to create inventive, resilient, and cutting-edge concrete constructions since they require less cement to be poured, have reduced overall project costs, and are environmentally conscious. Due to their distinctive features, titanium dioxide and nanocrystalline silica are among the best prospective nanomaterials for a variety of applications. Over the past ten years, there has been a significant rise in interest in nanotechnology as it relates to building materials. The workability of specimens containing 3% nano ferric oxide improves by up to 13.25% compared to control concrete. For concrete elements made with nano-Fe2O3, the values for flexural, split tensile, and compressive strength are respectively 7.90%, 7.4%, and 6.07% higher than for conventional concrete. Hydrophobic properties are produced when nano ferric oxide is used to substitute cement in concrete mixtures up to a particular amount. They aid in improving the self-sensing properties of concrete. Anti-iron oxide nanopowder has been employed in many products, such as corrosion coatings, plastics, silicones, rubber, alloys, lithium batteries, magnetic seals and certain drug delivery. Temperatures of around 450 degrees Celsius can be withstood by Fe2O3. Once they reach this temperature, the particles lose their magnetic characteristics. Because of their high aspect ratio, those particles cannot exist in nanoform without surface treatment.