[Effect of porosity on strength and hardness of dental stone (author's transl)].
The strength and hardness of dental stone were found to have better a correlation with porosity than with water-powder ratio. Within the range of porosity of less than 34 vol-%, the strength and hardness varied logarythmically with a linear change in porosity.
D002133:Calcium Sulfate / Q000592:standards*; D003720:Densitometry; D006245:Hardness Tests
D002133:Calcium Sulfate