Assertion: sintered magnesia | /r/HasProperty | ground to powder
Facets:
Source sentences:
text: 67% of this material having a particle size of 0.3 to 4 mm. and 28% having a particle size of 0 to 0.12 mm. were processed into bricks with an addition of 5% sintered magnesia that had been ground to a powder having a particle size below 0.10 mm., 1.5% dry sulfite cellulose 7 waste liquor and 1.5% saturated kieserite solution.