Two-component inorganic injection mortar system based on fine aluminous cement having increased load values

US11718564B2 · kind B2 · utility

Assignee

• Hilti Aktiengesellschaft · LI

Inventors

• Armin Pfeil · Kaufering, DE
• Markus Schönlein · Gilching, DE
• Dirk Volkmer · Unterschneitbach, DE
• Pascal Beroll · Landsberg am Lech, DE

Key dates

• Filing date: Oct 2, 2019
• Grant date: Aug 8, 2023
• Expiry date: Jul 17, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2111/00715
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A two-component inorganic injection mortar system includes a curable aqueous-phase aluminous cement component A and an initiator component B in aqueous-phase for initiating the curing process. Component A includes at least one blocking agent which is phosphoric acid, metaphosphoric acid, phosphorous acid or phosphonic acid, at least one plasticizer and water. Component B includes an initiator, at least one retarder, at least one mineral filler and water. The curable aqueous-phase aluminous cement component A includes calcium aluminate cement having an average particle size in the range of from 0.5 to 15 μm. A two-component system, which is ready-for-use, can be used for chemical fastening of anchors, such as metal elements, or in mineral substrates, such as structures made of brickwork, concrete, pervious concrete or natural stone.