asphalt vs pave

asphalt

verb
  • To pave with asphalt. 

noun
  • A sticky, black and highly viscous liquid or semi-solid, composed almost entirely of bitumen, that is present in most crude petroleums and in some natural deposits. 

pave

verb
  • To cover something with paving slabs. 

  • To cover with stone, concrete, blacktop or other solid covering, especially to aid travel. 

  • To pave the way for; to make easy and smooth. 

How often have the words asphalt and pave occurred in a corpus of books? (source: Google Ngram Viewer )