GROUT FOR THE INJECTION OF PRESTRESSING CABLES AND METHOD FOR INSTALLING A CABLE COMPRISING SUCH A GROUT

• Main Authors: TOURNEUR Christian, MERCIER Julien, ZIVANOVIC Ivica, HALLOPEAU Xavier
• Format: Patent
• Language: English; Spanish
• Published: 15.03.2023
• Subjects: ARTIFICIAL STONE; BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; BUILDING MATERIALS; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; FIXED CONSTRUCTIONS; FORMS; HANDLING BUILDING MATERIALS ON THE SITE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SHUTTERING; SLAG; STRUCTURAL ELEMENTS; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE

The invention relates to a geopolymer grout for protecting prestressing reinforcements, the geopolymer grout comprising metakaolin, fly ash and an activator mixture, the activator mixture comprising sodium hydroxide and sodium silicate, wherein the molar ratio Na 2O:SiO2 of the sodium silicate is between 0.40 and 0.70. La invención se relaciona con una lechada geopolimérica para proteger reforzamientos pretensores, la lechada geopolimérica comprende metakaolina, ceniza volante y una mezcla activadora, la mezcla activadora comprende hidróxido de sodio y silicato de sodio, en donde la proporción molar Na2O:SiO2 del silicato de sodio se encuentra entre aproximadamente 0.40 y 0.70.