caption death_date death_place birth_place image_size birth_date article_title name occupation
university of saskatchewan chemist october 4 , 1965 saskatoon , saskatchewan iceland 180px august 24 , 1883 thorbergur thorvaldson
 thorbergur thorvaldson chemist
thorbergur thorvaldson

thorbergur thorvaldson m.sc. , phd .
-lrb- august 24 , 1883 -- october 4 , 1965 -rrb- was an icelandic-canadian chemist .
he was the head of the department of chemistry at the university of saskatchewan .
thorvaldson and his team at the national research council developed a sulphate-resistant cement in 1919 which prevented decay and deterioration in existing structures .
he served as president of the canadian institute of chemistry in 1941 .
in 1946 he was named first dean of graduate studies at the university of saskatchewan .
