Apparatus for manufacturing set cellular cement
AssigneeLafarge Platres
InventorsMichel Rigaudon, Jorg Bold, Steven Roy Butler, Eric Millamon
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Abstract
A process for manufacturing set cellular cement, including the steps of: (i) mixing cementitious material, water, foaming agent and optionally additives into a free flowing slurry having a slump of at least 100 mm; subsequently (ii) injecting and distributing air into the slurry of step (i) to form a cellular slurry; subsequently (iii) casting the cellular slurry of step (ii); and finally allowing the cellular slurry to set. And, an apparatus for carrying out the process.
Claims29
A mixing device for manufacturing a cellular cement slurry, comprising:
- at least one first mixing device comprising a cement inlet and a water and foaming agent inlet, said first mixer being a high-shear mixer operated under conditions to prepare a fluid slurry;
- and
- at least one second mixing device comprising air injection means, said second mixer being operated under controlled-shear conditions.
A mixing device for manufacturing a cellular cement slurry, comprising:
- at least one first mixing device comprising a cement inlet and a water inlet, said first mixer being a high-shear mixer operated under conditions to prepare a fluid slurry;
- at least one further first mixing device comprising a fluid slurry inlet and a foaming agent inlet;
- and
- at least one second mixing device comprising air injection means, said second mixer being operated under controlled-shear conditions.
Dependencies are inferred from the claim text.