Process for preparing activators for fast-setting cements

Details Process for preparing activators for fast-setting cements Process for preparing activators for fast-setting cements

1987-02-09

1990-06-05

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106803, 106811, 106681, 106638, C04B 700, C04B 900, C04B 1100, C04B 100

Patent

active

049310976

ABSTRACT:
A particulate solid activator comprising a porous material containing absorbed ammonium phosphate can be prepared by a process which comprises: heating a slurry of the porous material and an ammonium phosphate solution; and then spray drying the slurry to obtain the particulate solid activator. The porous material can be diatomaceous earth. The resulting particulate solid activator can be dry blended with a magnesium-containing compound, e.g. MgO, and an optional aggregate to form a magnesium phosphate fast-setting cement mixture. This mixture reacts in the presence of an aqueous component at ambient temperature to form a monolithic solid.

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