Additives for water-hardening binding agents

US4284433A · kind A · utility

Assignee

• SKW Trostberg Aktiengesellschaft · DE

Inventors

• Alois Aignesberger · Trostberg, DE
• Jean-Pierre Deppen · Tacherting, DE
• Hans-Gunter Rosenbauer · Trostberg, DE

Key dates

• Filing date: Apr 13, 1979
• Grant date: Aug 18, 1981
• Expiry date: Apr 13, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B40/0633
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Water-hardening binding agent such as concrete, mortar, cement and the like are modified with a solid additive in the form of aggregates consisting of fine particle having a grain size of from 0.1 to 10 mm, preferably in pelletized or pressed grain form. These additives have an adjustable rate of dissolution and permit controlling the speed and manner of hardening of said water-hardening binding agent.