Tímarit Verkfræðingafélags Íslands - 01.10.1959, Side 31

Strength as % of 28 Day Strength of Straight Mortar.
TIMARIT VFl 1959
77
Notice that the strength relation diagrams show considerahle increase in strengths at later
ages for some of the pozzolans, as compared to straight cement mortar and the reference sam-
ples No. 16 and 17.