Abstract:
Concrete reinforced structures are susceptible to degradation over time due to external
agents, poor dosages, among other factors. These affected elements accelerate
corrosion problems of the reinforcing steel bar, which eventually reduce the useful life
of the infrastructure. The present study proposes to carry out an analysis of samples of
novel concretes, such as Geopolymers and hybrid cements, which will be subjected to
accelerated corrosion, electrical resistivity and chloride diffusion tests, comparing them
with commercial cement-based concretes. These tests will establish durability
indicators that will help evaluate the performance of new structural construction
materials, made with local raw materials, with a low carbon footprint, contributing to the
sustainability of the Ecuadorian construction industry.
The results obtained after carrying out the laboratory tests demonstrated that the
Geopolymer samples presented less corrosion in the reinforcing steel bar, had a lower
permeability against the penetration of chlorides and resisted a greater passage of
electric current through the shown in comparison with hybrid cements and traditional
cement.
With this we can establish that Geopolymers have good performance against these
external agents that cause damage to the integrity of buildings and could be used as
construction materials.
Keywords:
Geopolymers, Accelerated Corrosion, Hybrid Cement, Electrical Resistivity, Chloride
Diffusion.
