Method for repairing, waterproofing, insulating, reinforcing, restoring of wall systems
AssigneeUretek S.r.l.
InventorCarlo Canteri
Life of this patent
Estimating the term…
Abstract
A method for repairing and/or waterproofing and/or insulating and/or reinforcing and/or restoring the structural integrity of wall systems, which it consists in providing spaced injection holes within a wall system in a manner suitable to pass through cavities that exist in the wall system, inserting injection tubes in these holes, and then inserting a substance that expands after injection as a consequence of a chemical reaction so that the substance reaches the cavities connected to the injection holes or are proximate thereto, the injection tubes being, preferably gradually retracted along the injection holes in the opposite direction with respect to insertion, to allow the substance diffusing in cavities crossed by the injection holes or proximate thereto.
Claims37
A method for repairing and/or waterproofing and/or insulating and/or reinforcing a wall system by restoring the structural integrity thereof, the wall system comprising a solid aggregate structure consisting of blocks of material with a binder interposed therebetween, the solid structure extending between planes of arrangenment of opposite surfaces thereof, the method consisting:
- in locating cavities that exist and are formed in said solid structure by disaggregation of the block material or binder;
- in providing spaced injection holes within said wall system in a manner suitable to pass through said cavities that exist in the solid structure;
- in inserting injection tubes in said injection holes;
- in injecting in said injection holes, through said injection tubes, a substance that expands after injection as a consequence of a chemical reaction, fills said cavities and restores the structural integrity of the solid structure.
A method for repairing, waterproofing, insulating and reinforcing a wall system by restoring structural integrity thereof, the wall system comprising a solid aggregate structure consisting of blocks of material with a binder interposed therebetween, the solid structure extending between planes of arrangement of opposite surfaces thereof, the method consisting:
- in locating existing cavities formed in said solid structure by disaggregation of the block material or binder;
- in providing spaced injection holes that extend along substantially vertical directions within said solid structure of the wall system in a manner suitable to pass through said cavities that exist in the solid structure;
- in inserting injection tubes in said injection holes;
- in injecting in said injection holes, through said injection tubes which are gradually retracted upward during injection, a substance that expands after injection as a consequence of a chemical reaction, fills said cavities and the injection holes and restores the structural integrity of the solid structure.
A method for repairing, waterproofing, insulating and reinforcing a wall system by restoring structural integrity thereof, the wall system comprising a solid aggregate structure consisting of blocks of material with a binder interposed therebetween, the solid structure extending between planes of arrangement of opposite surfaces thereof, the method consisting:
- in locating existing cavities formed in said solid structure by disaggregation of the block material or binder;
- in providing spaced injection holes that extend along substantially vertical directions within said solid structure of the wall system in a manner suitable to pass through said cavities that exist in the solid structure;
- in selecting an expandable substance suitable to expand as a consequence of a chemical reaction that before expansion has a permeability coefficient equal to 10-9 m/s and an average viscosity comprised between 200 and 300 in mPa·s at 20° C.;
- in inserting injection tubes in said injection holes;
- in injecting in said injection boles, through said injection tubes which are gradually refracted upward during injection, a substance that expands after injection as a consequence of a chemical reaction, fills said cavities and the injection holes and restores the structural integrity of the solid structure.
Dependencies are inferred from the claim text.