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Related to mastic asphalt: Asphalt paving
mastic asphalt[′mas·tik ′as‚fȯlt]
asphaltic mastic, mastic asphalt
A viscous mixture of asphalt and a filler material such as fine sand or asbestos; hardens when exposed to air; used as an adhesive, as a sealant at joints, and in waterproofing.