The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 1979
Filed:
Dec. 23, 1977
Leif Berntsson, Goteborg, SE;
Bengt Hedberg, Goteborg, SE;
Soren Karlsson, Karlskoga, SE;
Olof Magnusson, Karlskoga, SE;
AB Bofors, Bofors, SE;
Abstract
The present invention relates to a method of producing a cement mortar with a density of 1200-2000 kg/m.sup.3 with good stability in a fresh condition. According to the invention, this good stability in the mortar is achieved through an extremely fine-pored structure initiated by fine-particle material with certain fixed properties added to the fresh mortar. The invention also comprises a method, using said mortar as a binding agent, of producing a lightweight aggregate concrete with an aggregate content of 45-80 percent by volume and a density below 1400 kg/m.sup.3 where the aggregate material has a particle density of less than 1200 kg/m.sup.3 and the mortar entirely fills out the space between the aggregate particles.