Abstract
In order to study the pore structure and corrosion resistance of kaolin composite-based geopolymers, in this paper, kaolin composite-based geopolymers were prepared by replacing fly ash with 15%, 25%, 35%, 50%, and 60% kaolin. Three different low-temperature curing methods were used to study the effect of kaolin ratio on the pore structure and corrosion resistance of geopolymers. The results show that with the increase of kaolin amount added, the corrosion resistance of the composites-based geopolymers increases first and then decreases, and the composite-based geopolymers with 35% kaolin content has the smallest total porosity and the pores are mostly harmless pores; the different low-temperature curing methods had little effect on the total porosity of kaolin composite-based geopolymers, and the corrosion resistance performance was not much different. The anti-corrosion performance of the 1d low-temperature standard-curing and 60°C curing method was better.
