232 The Philippine Journal of Science 
TABLE V.—Effect of hydrated lime, in presence of various amounts of 
gypsum. 
Groin Initial set in minutes. 
Sam-| added —— Normal 
Ro. | pam® | cent | Comsist- | with no| with o.5| with1 | with2 
= kilo). SOs. addition per cent | per cent | per cent 
of lime. | lime. lime. lime. 
Per cent. 
1 0 1.50 25 0 10 5 45 
z 4.2 1.65 26 5 65 40 80 
8 7.0 1.75 27 20 60 65 110 
4 14.0 2.00 28 105 125 145 160 
