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US 11,746,051 B2Granted
Cement board with water-resistant additive
AssigneePermaBASE Building Products, LLC
InventorJames Hickey
Life of this patent
Estimating the term…
Abstract
In the present disclosure, a cement board is disclosed. The cement board comprises a core having a first surface and a second surface opposite the first surface and a binder including a pozzolan material and a water-resistant additive, wherein the water-resistant additive is present in an amount of less than 5 wt. % based on the weight of the pozzolan material.
Claims24
A cement board, comprising:
- a core having a first surface and a second surface opposite the first surface and
- a binder including a pozzolan material comprising fly ash, blast furnace slag, metakaolin, silica fume, microsilica, or a mixture thereof and
- a water-resistant additive comprising a fatty acid including a backbone carbon chain having from 12 to 60 carbon atoms, wherein the water-resistant additive is present in an amount of less than 5 wt. % to 0.3 wt. % or more based on the weight of the pozzolan material.
Dependencies are inferred from the claim text.