The influence of binder on electrical resistivity and compressive strength of concrete

• Grant number: 24/16907-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: February 01, 2025
• End date: January 31, 2026
• Field of knowledge: Engineering - Civil Engineering - Construction Industry
• Principal Investigator: Lucas Henrique Pereira Silva
• Grantee: Marcos Henrique Soares Ferreira
• Host Institution: Instituto Federal de Educação, Ciência e Tecnologia de São Paulo (IFSP). Campus Presidente Epitácio. Presidente Epitácio , SP, Brazil

Abstract

In concrete structures, durability is significantly reduced when external agents penetrate the pores of the cement composite, causing structural deterioration, increasing maintenance needs, and shortening the structure's lifespan. One way to reduce concrete permeability and prevent reinforcement corrosion is by using cement with a high content of pozzolanic materials, such as CP IV cement. Recently, electrical resistivity has gained attention as a cost-effective and non-destructive method for evaluating the interconnected porosity of concrete, which is also reflected in compressive strength. Therefore, the objective of this project is to investigate the influence of cement type on electrical resistivity, slump, and compressive strength, and to relate these findings to the durability of structures.