The effect of crystalline technology on concrete as coating to improve its durability

Abstract

This research delves into the effects of incorporating Crystalline Additives (CAs) in concrete, specifically exploring alterations in compressive strength, water penetration resistance, and chemical durability when subjected to corrosive solutions, including H2SO4 and HCl. The investigation encompasses four concrete compositions: Standard Concrete, Concrete with Single Layer Crystalline Coating, Concrete with Double Layer Crystalline Coating, and Concrete featuring Type V Cement. Results indicate that the application of Crystalline coating contributes to notable enhancements in the average compressive strength, albeit falling short of the peak strength achieved with Type V cement. Notably, exposure to a 5% H2SO4 solution triggers more pronounced deterioration compared to exposure to 5% HCl, leading to discernible reductions in both weight and compressive strength. Despite Crystalline coating’s beneficial impact on compressive strength, it remains outperformed by the application of Type V Cement, as evidenced by superior average compressive strength values. Conversely, the efficacy of Crystalline coating in countering water penetration remains inconclusive, as evidenced by the water penetration test outcomes. This ambiguity underscores the necessity for further research to ascertain the true extent of Crystalline coating’s influence on water resistance.