Abstract
Layered double hydroxides (LDHs) intercalated with corrosion inhibitors (INT-LDHs) are often used for corrosion inhibition of reinforced concrete. However, the environmentally friendly inhibitor intercalation LDHs is rare, and the law of the influence of INT-LDHs on the properties of cement-based materials is still unclear. In this paper, green inhibitor vitamin B3 intercalated LDHs (VB3-LDHs) were prepared, and its effects on the hydration, pore structure and mechanical properties of cement-based materials were systematically studied. As the results shown, a suitable amount of VB3-LDHs could improve the pore characteristics of cement paste by promoting cement hydration and filling effect. When the content of VB3-LDHs was 3%, the 28d compressive and flexural strength increased by 9.87% and 14.18%, respectively. 1% and 6% VB3-LDHs have no significant effect on mechanical properties of cement-based materials.
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