water-lime

The floor of the basement must be an inclined plane toward a drain, and be plastered with water-lime.

American Woman's Home Harriet Beecher Stowe 1853

The floor must be plastered with water-lime, and the walls and ceiling be whitewashed, which will add reflected light to the room.

American Woman's Home Harriet Beecher Stowe 1853

It should, if the soil be compact, be well drained from some point or corner within the walls into a lower level outside, to which point within, the whole floor surface should incline, and the bottom be floored with water-lime cement.

Rural Architecture Being a Complete Description of Farm Houses, Cottages, and Out Buildings Lewis Falley Allen 1845