Ballast-Crete ® Technical Data

Normal Density Range
130 pcf (S.G. 2.08) to 325 pcf (S.G. 5.21). The density can be modified during a single installation. Higher densities are available if required.

Corrosivity
A thin film of inorganic oxides form when Ballast-Crete® is placed against standard plate steel. This film and the alkaline nature of the product inhibit rust from forming.

Microbial Growth
Ballast-Crete® does not support the growth of micro-organisms, including bacteria and molds, even after being inoculated.

Toxicity
The Ballast-Crete® blend of ingredients are non-toxic. It does not generate toxic gases and poses little handling problems. Because the material is abrasive to the skin and alkaline in nature, the same precautions should be taken as when working with conventional ready-mixed concrete.

Moisture Content
The residual equilibrium moisture is typically less than 10% by weight after the material has consolidated to a semi-solid like mass.

Settling or Shrinkage
Through the migration of moisture to the surface, Ballast-Crete® will settle into a homogeneous mass, reaching a maximum subsidence of 1/8" (3.18mm) per foot (305mm) of depth.

Flammability
Non-Flammable, tested to 622^oF (350^oC). Does not contain or generate flammable gases.

pH
Typical values range between 11.5 and 12.4.

Thermal Expansion and Contraction
Does not expand or freeze within a temperature range of 24.8^oF (-3.9^oC) to 212^oF (100^oC). As such, the installation of expansion tanks is not required.

Installation
Ballast-Crete® is typically pumped into place through several tank top openings within a density range of 130 pcf (S.G. 2.08) to 325 pcf ((S.G. 5.21). Beyond 325 pcf, the material may be installed using other systems.

Consistency
Ballast-Crete® handles and behaves much like a thixotropic slurry, yielding an extremely pumpable material. Typical viscosity measurements yield values between 2500 cps and 5000 cps (centipoisinoies).

Removable/Structural Stability
Can be removed in discrete quantities with high pressure water or vacuum systems. Its inorganic, non-toxic nature poses no environmental problems with conventional landfill disposal. Ballast-Crete® is a stable mass and does not shift or move, adding impact resistance to the sections incorporating its use in the case of grounding or accident.

Sound Damping
In-place material within a density range of 160 pcf (S.G. 2.56) to 450 pcf (S.G. 7.21) provides equal or better damping performance compared to viscoelastic constrained layer damping treatments of steel up to a frequency of 20 kHz.

Absence of Free Surface (Non-Shifting Characteristic)
Although semi-solid in place, Ballast-Crete® will not shift or exhibit a free surface condition within a wide range of densities.

Damaged Tank Condition
Damaged tank testing indicates that only the material directly in way of the opening will wash, leaving the remaining material in place.

Magnetic Susceptibility
Special formulations may be available that exhibit very low or negative magnetic susceptibility.