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The development of synthetic-enzyme based foaming agents; foam stability enhancing admixtures; and specialized foam generating, mixing, and pumping equipment has improved the stability of the foam and hence foam concrete, making it possible to manufacture as light as 75 kg/m 3 density, a density that is just 7.5% of water. [13]
After many years of exploration and attempt, EPS lightweight concrete can be used in many building structures, such as EPS insulation coating, EPS mortar, EPS sealing putty, EPS lightweight mortar, EPS concrete inner and outer wall panels, etc. [4] In addition, EPS lightweight aggregate concrete is also used in the fields of pavement backfill ...
Philadelphia County is unique in Pennsylvania in that it is a consolidated city-county, and so while the county is technically not governed by a home rule charter (and is therefore not included on the list), the fact that Philadelphia City (which constitutes the same land area as and administers all the governmental affairs of Philadelphia ...
Waste light concrete (WLC) is a type of lightweight concrete where the traditional construction aggregates are replaced by a mix of shredded waste materials [1] (thermoplastics, thermosetting plastics, glass, tires, incinerator bottom ash, solid agricultural waste etc.) and a special group of additives. Used in infrastructure and building ...
The Department was created by the Community and Economic Development Enhancement Act (Act of Jun. 27, 1996, P.L. 403, No. 58), merging the Departments of Commerce and of Community Affairs. The incumbent Secretary of Commerce, Thomas B. Hagen, became the first Secretary of the new department.
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Unlike foam concrete, which is lightweight and created by introducing stable air bubbles using a foam agent, air-entrained concrete maintains its density (air consists of 6–12 vol.%) while enhancing durability, workability, and resistance to freeze-thaw cycles.
A foaming agent is a material such as a surfactant or a blowing agent that facilitates the formation of foam. A surfactant, when present in small amounts, reduces surface tension of a liquid (reduces the work needed to create the foam) or increases its colloidal stability by inhibiting coalescence of bubbles. [ 1 ]