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:
Jan. 15, 1991
Filed:
Oct. 04, 1989
Applicant:
Inventor:
Fritz Jung, Vienna, AT;
Assignee:
Allgemeine Baugesellschaft-A.Porr Aktiengesellschaft, Vienna, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
106672 ; 106677 ; 106724 ; 106795 ; 106820 ;
Abstract
A dry mortar mix based on an inorganic bonding agent and optionally additives, plastics, fibres, and other conventional concrete additives is proposed especially to protect concrete structures and/or to eliminate surface damage to such structures. In addition to the inorganic bonding agent, the dry mortar mix contains a granular additive to increase alkalinity, this having a reaction speed that is a considerably lower than that of the granular bonding agent. This 'reserve alkalinity' serves to counteract the diffusion of CO.sub.2 and SO.sub.2 from the air into the concrete, and the damage to the concrete that is attendant on such diffusion.