Patent · US Active

Fire-resistant two-component mortar system based on aluminous cement for a fire-resistant chemical fastening of anchors and post-installed reinforcing bars and use thereof

US11858866B2 · kind B2 · utility

0Cited by

17References

11Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Armin Pfeil · Kaufering, DE
Anna Sharmak · Augsburg, DE
Gregor Giessmann · Königsbrunn, DE

Key dates

Filing date	Feb 7, 2022
Grant date	Jan 2, 2024
Priority date	—
Expiry date	Feb 7, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/91
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A fire-resistant two-component mortar system contains a curable aqueous-phase aluminous cement component A and an initiator component B in aqueous-phase for initiating the curing process. Component A further contains at least one blocking agent selected from phosphoric acid, metaphosphoric acid, phosphorous acid and phosphonic acids, at least one plasticizer, and water. Component B contains an initiator, at least one retarder, at least one mineral filler, and water. A fire-resistant two-component system, which is ready-for-use, can be used for a fire-resistant chemical fastening of anchors and post-installed reinforcing bars in mineral surfaces, such as structures made of brickwork, concrete, pervious concrete or natural stone.

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