STYROFAN 1186
STYROFAN 1186
STYROFAN® 1186 is used mainly for modifying concrete mixtures. The most notable applications are concrete for bridge deck and parking garage overlays. The addition of STYROFAN 1186 to conventional unmodified concrete mixtures reduces the amount of water required for the placement of the mix. The lower water typically results in a cured concrete with higher compressive strength.
The polymer forms an elastic membrane throughout the matrix of the cured concrete, reducing the formation of voids and hairline cracks therein. Moreover, the resulting concrete mixture shows improved resistance to the penetration of oil, salts, and aids in the adhesion of the new concrete to old. Flexural strength and abrasion resistance are also increased.
STYROFAN 1186 has been pre-qualified by the FWHA under FHWA RD-78-35.
Properties
| Typical Properties | Value |
| Solids Content | ca. 48% |
| pH | ca. 10 |
| Viscosity at 23°C (Brookfield RVT, Spindle #1, at 20 RPM) | ca. 38 mPas |
| Other Properties of the Dispersion | Value |
| Surface Tension | ca. 32 dynes/cm |
| Specific Gravity | ca. 8.5 lbs/gal ca. 1.01 g/cm3 |
| Bound Styrene | ca. 66% |
| Average Particle Size | ca. 0.2 𝜇m |
| Dispersion Type | Anionic |
| Coagulum (100 mesh) | < 0.1 wt.% |
| Sensitivity to Frost | ca. 2 cycles |
| Properties of the Film | Value |
| Glass Temperature Tg (DSC) | ca. 6°C |
| Mechanical Strength* Tensile Strength |
ca. 600 psi |
| Mechanical Strength* Elongation at Break |
ca 200% |
| Appearance | Slight yellow, transparent |
| Surface | Tack-free |
*This figure should be taken for comparison purposes only. All that can be obtained from it is an idea of the magnitude of concern.
