Home >Sat Limestone And Clay Are Crushed To Form A Powder Cambridge Ielts

sat limestone and clay are crushed to form a powder cambridge ielts

Source IELTS Cambridge English Test Book 8 In the first stage of making cement limestone and clay are crushed together to form a powder This powder is then combined in a mixer before passing into a rotating heater which has constant heat applied at one end of the tube The resulting mixture is ground in order to produce cement

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