paving vs paving material

paving and paving material both are nouns.

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

As nouns, paving and paving material are synonyms defined as:

Other synonyms of paving include pavement.

paving (noun)	paving material (noun)
the act of applying paving materials to an area	material used to pave an area
the paved surface of a thoroughfare
material used to pave an area