Patent · US Expired

Cementitious compositions containing shredded polystyrene aggregate

US5352390A · kind A · utility

8Cited by
33References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 11, 1993
Grant dateOct 4, 1994
Priority date—
Expiry dateMar 11, 2013

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/2982
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Fireproofing compositions are provided. The compositions comprise a hydratable cementitious binder and polystyrene aggregate falling within particular particle size distribution limits. The compositions can also include an air entraining agent and a fibrous material. On addition of water, the compositions form settable, sprayable slurries which can be pumped to the point of application. The slurries are capable of spray application to steel structural members and adhere to the member in the slurried state and after setting. Excellent fire and heat protection is provided to the member despite the organic nature of the polystyrene aggregate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.