Question

average percentage of sulphur trioxide in cement​

Answer 1

Answer:

Clinker with increased amounts of C3A and SO3（C3A：10-14％, SO3：1.1-2.5％）was prepared by an electric furnace, and Cement was prepared with adding a certain amount of reagent gypsum（Gypsum SO3＝1.2％）and grinded until 3,300cm²/g fineness by bond mill.

Answer 2

Answer:

3.6% is the correct answer.