Hydraulic binders and building elements formed of non- traditional materials
CA 1279333 C · Owner: Santoro, Luciano · Inventors: Valenti, Gian L.; Santoro, Luciano; Beretka, Julius
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is disclosed for the formation of hydraulic binders and building elements comprising from 70% ettringite and up to 30% calcium silicate hydrates. Ettringite is a very strong mineral and the product may be at least the equal in terms of mechanical properties of Portland cement while not suffering shrinkage and expansion problems. The process comprises mixing powdered source materials of reactive CaSO4, CaO and Al2O3 with or without SiO3 with or without SiO2 and hydrating the intimate mixture at a ratio in the range of 1 part powdered source materials to 0.35-1 part water. Most conveniently impure source, material such as industrial by-products are used as they have been found to …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.