He joined his first trade union in 1906, and chaired the union Norsk bokbinderog kartonnasjearbeiderforbund from 1914 to 1930. Having broken away from the Labour Party and joined the Communist Party in 1923, he later worked as a manager in the newspaper Arbeidet. He formed a Communist minority in the secretariat together with Elias Volan, but they were replaced in 1929.
Aas was also a driving force in Arbeidernes Esperantoforbund.
He died in 1960.
Norwegian Labour Party, Communist Party of Norway.
He was a member of the secretariat of the Norwegian Confederation of Trade Unions from 1920 to 1923, then a deputy who met regularly in the place of Ole O. Lian, then a secretariat member again from 1927 to 1929. In politics, he was a member of Aker municipal council and chairman of Grorud district branch of the Labour Party. In the Communist Party he was a member of the politburo for a period.