The results of research show that the impurity of infusibility and metal ion has been removed after the leaching of calcium carbide residue, and the transform rate of hydrated lime up to about 88%.
Moreover, the distribution and the shape of the clumps suggest that the lime was added to the mix as quicklime, rather than, as is common today, slaked (hydrated) lime.
Moreover, the distribution and the shape of the clumps suggest that the lime was added to the mix as quicklime, rather than, as is common today, slaked or hydrated lime.