Back to results
US 7,837,786 B2Granted
Compositions of cellular materials that contain anhydrite and methods for its preparation
AssigneeGcc Technology and Processes S.A.
InventorsCarolina Prieto Gómez, Jaime Valenzuela Grado, Armando García Luna, Pedro Burciaga Meléndez
Life of this patent
Estimating the term…
Abstract
The present invention describes improved cellular compositions that contain anhydrite that reaches high compression resistance values, of the order of 110 to 138 Kg/cm2, as well as methods of obtaining of these. The obtained cellular materials with the compositions of the invention can be used like constructive structural materials, and without they present the problems commonly associate to the anhydrous calcium sulphate presence in similar materials.
Claims45
A cellular cement composition, comprising:
- a) a cement composition comprising a mixture of:
- Portland Cement in a percentage in weight with respect to the total weight of the cement composition from 25 to 40%, and
- Anhydrite in a percentage in weight with respect to the total weight of the cement composition from 60 to 75%,
- b) Water,
- c) Sand,
- d) Fiber,
- e) a foaming additive and
- f) a water reducing agent,
- wherein said foaming additive generates foam when mixed with water.
6 more elements
Dependencies are inferred from the claim text.