No free photograph

Duff Abrams

American engineer, pioneer in the rheology of cements · United States · On the map · Scientists · Lived 1880 to 1965 · aged 85

Duff A. Abrams (1880-1965) was an American researcher in the field of composition and properties of concrete. He developed the basic methods for testing concrete characteristics that remain in use. A professor with the Lewis Institute, he studied the component materials of concrete in the early 20th century.

Duff Abrams is read about 4.5 times a day, in 7 languages.

A typical day, 30 days to 21 June 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

Something wrong?