tarmacadam vs paving material

tarmacadam and paving material both are nouns.

Word	Noun	Adjective	Verb	Adverb
tarmacadam	Yes	No	No	No
paving material	Yes	No	No	No

As nouns, paving material is a hypernym of tarmacadam; that is, paving material is a word with a broader meaning than tarmacadam:

tarmacadam: a paving material of tar and broken stone; mixed in a factory and shaped during paving
paving material: material used to pave an area

Other hypernyms of tarmacadam include pavement, paving.

tarmacadam (noun)	paving material (noun)
a paved surface having compressed layers of broken rocks held together with tar	material used to pave an area
a paving material of tar and broken stone; mixed in a factory and shaped during paving