soot-lime mortar; bluish-black graphite pigment
Meanings
2 senses · 6 examplesnoun
lime mortar mixed with soot, etc.; a building material
technicalTraditional masonry material used for binding bricks and stones in construction.
This kind of lime mortar is a commonly used binding material in traditional architecture.
The craftsmen used lime mortar to lay the bricks with perfect precision.
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When restoring ancient buildings, it is necessary to prepare lime mortar identical to that of the original structure.
noun
a kind of impure graphite, bluish-black in color, used for painting exterior walls, coating stoves, or as pigment
technicalKnown for its heat resistance and bluish-black color, traditionally used on stoves and exterior walls as a protective coating.
The surface of old-fashioned stoves is usually coated with a layer of bluish-black graphite.
This bluish-black graphite pigment exhibits a unique metallic luster in sunlight.
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He painted the courtyard's exterior walls with bluish-black graphite, giving them a rustic texture.