Hydraulically setting shaped brick, particularly for construction, and method for its production

US4430126A · kind A · utility

Assignee

• Bergwerksverband GmbH · DE

Inventors

• Manfred Ackermann · Elmhurst, US
• Rolf Kohling · Bochum, DE
• Dieter Leininger · Essen, DE

Key dates

• Filing date: Feb 26, 1982
• Grant date: Feb 7, 1984
• Expiry date: Feb 26, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

With hydraulically setting shaped brick, particularly for construction, composed of PA0 (a) 4 to 30% by weight hydraulically or similarly acting binding agent, such as cement, high-hydraulic lime, lime or hydraulically reacting plastic or mixtures thereof; PA0 (b) about 60 to 95% by weight mineral aggregate material; and PA0 (c) 0 to 10% by weight other additions, the raw material basis is extended with regard to aggregate material, and deposited amounts of country rock from mining are reduced, since the aggregate material is composed of country rock (mining waste material) from mining, particularly hard coal mining, with a grain size up to 15 mm and a finest grain portion under 0.2 mm from 10 to 45% by weight. To produce the shaped brick, the mixture is shaped and then hardened. Through particular choice of granulation and density, the mining waste material can be adjusted to desired quality characteristics and the physical characteristics of the shaped brick varied, corresponding to utility.