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

• Main Authors: MERCIER, Julien, HALLOPEAU, Xavier, ZIVANOVIC, Ivica, TOURNEUR, Christian
• Format: Patent
• Language: English; French; German
• Published: 12.04.2023
• 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 Na2O:SiO2 of the sodium silicate is between 0.40 and 0.70.