Research on performance monitoring of binary nano modified concrete based on temperature variation

The use of concrete is widespread, but it poses challenges due to its high consumption of Earth's raw resources and difficulties in recycling and reclamation. Today, the pressing climate issues, including global warming and the emergence of a complex climate, continue to test cement-based polymers in the civil engineering industry. As a result, there is a growing demand for higher performance, renewable resources, and reduced carbon dioxide production, leading to a shift in the traditional industrial revolution. Composite nano concrete has emerged as an effective solution to address the challenges related to concrete mechanics and durability, aligning with the principles of sustainable development goals. The research focuses on utilizing composite nano-modified concrete to enhance the life cycle of structures. This nano-modified concrete incorporates Nano-SiO₂ (NS) and Nano-CaCO3 (NC) particles to create a new composite nano-concrete structure called NSC concrete. The research paper explores different dosages of composite nano concrete, specifically 2.5 %, 3.0 %, and 3.5 %, denoted as NSC25, NSC30, and NSC35, respectively. It examines the performance of the composite nano concrete under various temperature conditions, including 25 °C, 200 °C, 400 °C, and 600 °C, to simulate real-world scenarios and evaluate its value-based applications. The article analyzes multiple aspects, including mechanical properties, durability, visual appearance, and economic benefits of composite nano concrete. It also assesses NSC concrete's temperature dissipation capacity and insulation level and investigates the interfacial transition zone influenced by nanoparticles and temperature. The results indicate that the new composite nano concrete retains substantial enhancements in mechanical properties, with a maximum increase of 1.22 % in splitting strength and up to 45.69 % improvement in flexural strength at a temperature of 600 °C. Additionally, it demonstrates commendable durability and economic efficiency