Cement News tagged under: clinker composition
Belite in Portland clinker22 July 2019, Published under Cement NewsWhile belite is often represented as a pure dicalcium silicate, in practice the phase contains a range of impurities. Arthur Harrisson highlights the differences in belite composition and examines the causes of such impurities. Type I belite crystals with dark laminations containing exsolved matter The belite phase in Portland cement clinker is often characterised as dicalcium silicate or C 2 S, implying a lime-to-silica ratio of 2:1. The ratio refers to the number of CaO units ... |
Modifying the Bogue calculation31 January 2018, Published under Cement NewsThe Bogue calculation helps cement chemists to allocate the four main oxides in Portland cement clinker to the four main phases present following the pyroprocess in the cement kiln. While not perfect, it remains an effective guide to the potential relative properties of such clinkers. How much of each phase is there? The Bogue calculation is a means of allocating the four main oxides in Portland cement clinker to the four main phases present after firing in a cement kiln. The ca... |
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