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.); which allowed a stronger, more homogeneous mixture and a continuous manufacturing process. [ ] the hoffmann 'endless' kiln which was said to give 'perfect control over combustion' was tested in , and showed the process produced a better grade of cement. this cement was made at the portland cementfabrik
another type is specified. it is commonly used for general construction, especially when making precast, and precast-prestressed concrete that is not to be in contact with soils or ground water. the typical compound compositions of this type are: % (c s), % (c s), % (c a), % (c af), % mgo, % (so ), % ignition...
https://en.wikipedia.org/wiki/Portland_cement