但未水化的水泥颗粒继续水化，及Cl-和Mg2+与水化产物发生化学反应生

However, the unhydrated cement particles continue to be hydrated, and Cl- and Mg2+ chemically react with the hydration products to form non-expandable products, magnesium hydroxide and Friedel salts, which further densify the microstructure and cause the porosity to increase with the soaking age. The extension showed a downward trend, as shown in Figure 14.

However, the unhydrated cement particles continue to hydrate, and Cl - and Mg2 + react with the hydration products to produce non expansive products magnesium hydroxide and Friedel salt, which further compact the microstructure, resulting in a downward trend in porosity with the extension of soaking age, as shown in FIG. 14.

However, the unhydrated cement particles continued to hydrate, and Cl- and Mg2+ chemically reacted with hydration products to generate non-expansive products magnesium hydroxide and Friedel salt, which further densified the microstructure, resulting in a decreasing trend of porosity with the prolonging of soaking age, as shown in Figure 14.