Additive for concrete or mortar and the use thereof

US4265674A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gerhard Debus · Idstein, DE
• Friedrich Girg · Idstein, DE
• Volker Knittel · Wiesbaden, DE

Key dates

• Filing date: Aug 7, 1979
• Grant date: May 5, 1981
• Expiry date: Aug 7, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B28/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

This invention relates to an additive for concrete and mortar comprising a cellulose ether and a non-ionic, low-foaming surface-active agent.