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Matrices |
The matrix is the ingredient in a terrazzo floor which acts as a binder to
hold the chips in position. There are three basic types of matrices: cementitious,
modified-cementitious and resinous.
Cementitious Martices: Portland Cement provides
a good background for marble chips. It can be tinted to produce various
colors. White cement is color controlled during manufacture. Gray Portland
Cement may not be color controlled. For use in terrazzo, portland cement
should exceed the minimum standards of ASTM C-150.
Mineral Color Pigments: Interior: Shall
not exceed two pound per bag of portland cement. Exterior: Pigment shall
not exceed 1/2 pound per bag of Portland Cement.
Modified Cementitious Matricies: Polyacrylate
Modified Cement: A composition resinous material which has proven to be
an excellent binder for use in thin-set terrazzo. Minimum physical properties
are stipulated in Polyacrylate Terrazzo specification.
Resinous Matricies (Epoxy or Polyester):
A two component thermal setting resinous material which has proven to be
an excellent binder for use in thin-set terrazzo. Minimum physical properties
are stipulated in NTMA Terrazzo specifications. |
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