Phosphogypsum composition having improved expansion properties

Details Phosphogypsum composition having improved expansion properties Phosphogypsum composition having improved expansion properties

1992-03-31

1993-11-16

Group, Karl

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106786, C04B 704, C04B 1126

Patent

active

052619575

ABSTRACT:
Stabilized phosphogypsum-containing compositions with low expansion and high compressive strength characteristics are prepared by admixing phosphogypsum with a cementitious binder having a calculated zero percent tricalcium aluminate content The compositions may contain phosphogypsum and cementitious binder only or they may also include sand or other filler material. The phosphogypsum composition is wetted with water, compacted and allowed to cure. The amount of water added preferably produces a maximum density of the compacted composition.

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