As a result of the CGM’s research activity, the following patents and / or utility models have been generated:
Patent number: ES 2 582 498 B1
Inventors: Breixo Gómez Meijide, Ignacio Pérez Pérez and Ana María Rodríguez Pasandín
Holder: University of A Coruña
Date of grant: 22/03/2017
Summary:
The present invention describes a process for cleaning fresh stains by spilling fluids, comprising applying recycled aggregates from RCDs, with a content of more than 90% mortar or concrete and a particle size of less than 0.250 mm, removing the mixture for a time between 5 seconds and 2 minutes, and collect the resulting aggregates soaked in the fluid stain. With this new application, it could be given a new commercial outlet by extending its useful life through a simple, inexpensive and sustainable process, thus contributing to the reduction of its environmental impact.
Date of publication in the BOPI: 13/09/2016
Patent number: ES 2 425 301 A1
Inventors: Ignacio Pérez Pérez and Ana María Rodríguez Pasandín
Owner: Universidade da Coruña
Grant Date: 08/04/2014
Summary:
It is a process for the manufacture of hot-mix asphalt to which recycled aggregate from construction and demolition waste is incorporated. To improve its water sensitivity, it is left to cure for 4 hours in an oven at the mixing temperature, prior to compaction.
Date of publication in the BOPI: 08/11/2014
Patent number: ES 2 425 302 A1
Inventors: Ignacio Pérez Pérez and Ana María Rodríguez Pasandín
Owner: Universidade da Coruña
Grant Date: 08/04/2014
Summary:
The present invention is a process for obtaining a bituminous mixture that comprises pre coating the recycled aggregate with bituminous emulsion, leaving the pre coated recycled aggregate to rest until the emulsion breaks, and the pre coated mixture of recycled aggregate with natural aggregate , mineral powder of cement and bitumen.
The hot process comprises a combination of natural aggregate and recycled aggregate from concrete-type construction and demolition waste (CDW). The inventors found that the pre coating of the recycled aggregate with slow-breaking bitumen emulsion surprisingly promotes the subsequent adherence of the pre coated aggregate with the bitumen. In addition, it reduces the entry routes of water into the recycled aggregate as the bituminous emulsion is very fluid and, therefore, with ease to access all the pores of the recycled aggregate.
Date of publication in the BOPI: 08/11/2014
Registered seat number: 03/2013/1383
Inventors: Simón Fernández Garrido, Juan José Galán Díaz and José Antonio Orosa García
Owner: Universidade da Coruña
Grant Date: 11/25/2013
Patent number: ES2393491
Inventors: Mar Toledano Prados, Juan José Galán Díaz, Ana Conde del Campo and Mª Ángeles Areas Varas
Holder: Universidade da Coruña (80%) and CSIC (20%)
Grant Date: 10/17/2013
Summary:
Device for corrosion and fatigue testing in servohydraulic mechanical testing machines comprising two standard compression plates, upper and lower, characterized by comprising: a four-point bending fatigue gantry (19) arranged inside a corrosion chamber (20), comprising: a base (14) in the form of a rail anchored to the corrosion chamber, two mobile lower supports (11) anchored to the base (14), a head (8) in the form of a rail, two columns ( 10) passing through the circular holes of the head and fixed by a first end to the base (14), some mobile upper supports (9) arranged in the head and anchored to it by means of union, and a piston (7) comprising a first end fixed to the head (8) and a second free end.
Publication date: 12/21/2012
Observations:
On 04/27/2012 the international patent was filed, with international publication number WO12146819, which is currently pending resolution.
