Discussion
State whether the following is true or false.
The lime saturation factor is calculated rather than measured directly.
Answer: B
Correct answer: True
The lime saturation factor is computed from the chemical analysis - the calcium oxide present as a proportion of what the silica, alumina and iron oxide could theoretically combine with. No instrument measures it directly. It is one of three such calculated moduli, with the silica ratio and the alumina ratio, and together they are what the raw mix is actually controlled to.
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