§ eo 
No inne NO Se 
N JIGO ® 
Se ee) aoe 
sjsu ore aaa ea 
So eee NOI eee Oe a 
280 [Ths Aca 
RE (J AY ete Ea 
Sop -o, a 
SSCs I) ey eae eee Ce 
=> RaERRSEY | W| MI | 
fay Samm iN a 
(op Raa (ee a 
pp enna ae ee aN W/Z ey 
i eT Ze ED) 
each 2 IEE Need 
Frerceritr 1140 
Fig. 27. Dyckerhoff’s experiments on magnesia showing expansion of high magsesia 
cements increasing with age. 
