… cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of …
Explanatory notes
… cement, slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of … cement is obtained by firing limestone containing in its natural state, or mixed artificially with, a suitable … subsequently ground to produce Portland cement, which may incorporate additives and accelerators to modify its …