Materials (lect. 3-9)

Aggregates occupy ___ to ___ % volume of concrete.

60 80

UW bucket filled in _____ & dry-rodded ____ times (each fill).

Thirds 25

Ordinary Portland Cement was patented by

Joseph Aspdin

Production of cement accounts for ___ to ___ % greenhouse gas emissions.

5 to 7

___ ___ & ___ ___ account for ~___% cement weight, and account for most of the binding qualities.

Tricalcium silicate, dicalcium silicate, 75

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