Lightweight terrazzo surface composition
A terrazzo composition containing a resin component; a hardener component; and an aggregate component, where the composition has a tensile strength of about 8500 psi to about 8900 psi, a compressive strength of about 2600 psi to about 3000 psi, a Shore D Hardness of about 50 to about 100, and a weight of about 0.60 pounds per square foot at 0.25 inch thickness to about 0.76 pounds per square foot at 0.25 inch thickness.
1. A cured terrazzo composition, formed from an uncured composition comprising:
a resin component, including a resin and optionally including a diluent, a flame retardant, a colorant and/or a defoamer, present in an amount of about 30 wt % to about 40 wt % of the uncured composition;
a hardener component; and
an aggregate component comprising foamed glass beads and/or hollow ceramic spheres;
wherein a volume ratio of resin component to hardener component comprises about 4:1 to about 1:1; and
wherein the cured terrazzo composition has a tensile strength of about 8500 psi to about 8900 psi, a compressive strength of about 2600 psi to about 3000 psi, a Shore D Hardness of about 50 to about 100, and a weight of about 0.60 pounds per square foot at 0.25 inch thickness to about 0.76 pounds per square foot at 0.25 inch thickness.
2. The cured composition of claim 1 , wherein the composition meets all requirements of MIL-PRF-3135H Type II Class 2.
3. The cured composition of claim 1 , wherein the composition meets all requirements of MIL-PRF-3135H Type III Class 2.
4. The cured composition of claim 1 , wherein the resin component is present in an amount of about 32 wt % to about 37 wt % of the uncured composition.
5. The cured composition of claim 1 , wherein the hardener component is present in an amount of about 12.4 wt % to about 12.6 wt % of the uncured composition.
6. The cured composition of claim 1 , wherein the aggregate component is present in an amount of about 50 wt % to about 56 wt % of the uncured composition.
7. The cured composition of claim 1 , wherein the resin component comprises an epoxy resin.
8. The cured composition of claim 1 , wherein the resin component comprises an epoxy resin in an amount of about 75 wt % to about 100 wt %.
9. The cured composition of claim 1 , wherein the hardener component comprises a hardener comprising at least one of a primary amine, a modified primary amine, an aliphatic, a cycloaliphatic, an anhydride, or combinations thereof.
10. The cured composition of claim 1 , wherein the aggregate component comprises a bead mixture.
11. The cured composition of claim 10 , wherein the bead mixture comprises non-uniformly sized beads.
12. The cured composition of claim 10 , wherein the bead mixture comprises colored beads.
13. The cured composition of claim 1 , wherein the cured composition comprises a terrazzo underlayment.