Abstract: Advanced masonry coring systems for coring and grouting masonry walls are disclosed in this patent. The systems include rotating machinery and a drill column in the form of a cylindrical double-piped string of pipe sections, rotating a cylindrical drill body. The drill body mounts cutting end faces having alternative means of employing carbide or diamond cutting and/or pulverizing elements. The double drill pipe weight is made workable through new aerospace composite fabrication. The double pipe permits more efficient routing of air and removal of drill cuttings. Advancement in various system components and means of placing reinforcement into walls is disclosed. Further disclosure is included of advanced means of optimizing resin grouting materials and procedures to fill the wall cavities created by the core drill, integrating the reinforcement into the walls.

Abstract: A method is presented for extending the lives of existing slate, fibrous cement and clay tile roofs. The method involves injecting an especially formulated, polymer material into the spaces and voids of adjoining tiles. The injection process uses pumping equipment with a custom-designed gasket at the spray gun's point of application to aid in directing the grout into the spaces and voids. After the injection step is complete, applicators use a squeegee-like device to spread any initially excess injected material on the roof's top surface.

Abstract: A wall cladding anchorage has a rod with ends loosely enveloped by fabric sleeves. The wall is drilled to receive one end and the cladding is drilled, or otherwise formed with a cavity, to receive the other end. Either the wall or the cladding may have the anchorage fixed first, by grout being injected to expand the sleeve and seep through it to bond to the drilling or cavity wall. Then the cladding is offered up and the other sleeve likewise expanded, the grout being injected via a duct leading between the cladding and the wall. Instead of a single part rod, there may be two elements, such as a tube and a rod that screws into it, each with a sleeve so that the cladding or wall need not have significantly projections until shortly before the cladding is fixed. It is also possible to have a single sleeve over the whole rod and inject grout into its central zone, between the wall and cladding.

Abstract: A masonry reinforcement system includes a number of tensioning rods extending from the top to the bottom of a masonry wall structure in spaced columns. In each column, several rod segments are interconnected at each floor diaphragm using a double conical connector assembly. In portions of the wall structure where rod columns cannot be placed, such as window regions, spring tensioning assemblies are installed using a similar double conical connector assembly. Each type of connector assembly is embedded in a pocket formed in the masonry wall structure using a hardenable grout. After installation, the rods are post-tensioned to provide a compressive axial load to the masonry wall structure. The spring tensioner assemblies are tensioned prior to applying the grout to the void in the wall.

Abstract: A brick or masonry structure is drilled to receive an elongate reinforcing assembly comprising a core with one or more fabric sleeves over most of its length. The sleeves are injected with grout that seeps through the fabric to bond to the drilling wall. It may bond directly to the core or to a tube through which the core extends. The core is anchored to the structure at or near the mouth of the drilling while a tube farthest from the mouth may have a connection to the core that allows the core to be pulled towards the mouth with progressively greater resistance.

Abstract: The present invention relates to a method for reinforcing and repairing hollow concrete block building foundation walls from the bucking caused by the pressure of the earth, water and/or tree roots.

Abstract: A method for repairing and concealing a crack in the interior surface of a basement wall, and for draining water admitted through the crack into a drain at the base of the wall. The method involves the steps of covering the crack, along the length thereof and down to the drain, with a thin, narrow strip of a water-absorbing, water-wicking fabric such as a layer of plastic foam or woven cotton. Thereafter a thin barrier layer of an elastomeric caulk composition is spread thereover and beyond the edges thereof onto the surface of the basement wall to channel the flow of water from the wall crack, through the layer of wicking fabric, and down into the drain.

Abstract: A pregrouted base plate and the method of its use and construction with rotating machinery such as pump and electric motor assemblies that are coupled together by a pair of shafts and require precise alignment of those shafts for a long and dependable service life is disclosed. The pregrouted base plate is formed as a generally rectangular parallelepiped structure with one side open. The novel method of its use includes pregrouting the baseplate before installation, curing the grout and machining the mounting surfaces for the rotating machinery before field installation to ensure precise alignment of the pump and motor shafts. A second embodiment is shown with an open frame having two sides open.

Abstract: A jet bit for jet grouting is disclosed. The jet bit has a rotating auger with a hollow central mast and one or more at least partial helical flights defining an outer auger diameter. The jet bit has at least one primary jet nozzle flowably connected to the central mast of the auger and positioned proximal to the outer diameter of the auger with the discharge of the nozzle directed outside the outer diameter of the auger. Secondary jet nozzles may be used that are directed between the central mast and the outer diameter of the auger. A conventional crane mounted caisson drilling rig can be adapted for use with the jet bit to perform jet grouting.

Abstract: A brick or masonry structure (2) is drilled to receive an elongate reinforcing assembly comprising a core (3;25;26;27,28;32) with one or more fabric sleeves (10,15,22) over most of its length. The sleeves are injected with grout that seeps through the fabric to bond to the drilling (1) wall. It may bond directly to the core or to a tube through which the core extends. The core is anchored to the structure at or near the mouth of the drilling (1) while a tube (5) furthest from the mouth may have a connection (4) to the core (3) that allows the core to be pulled towards the mouth with progressively greater resistance. The reinforcing assembly can also have limited extendability by inserting links (31) in the core between grouted sleeve sections or by using wire (32), which could be kinked in such gaps.

Abstract: A method for filling cracks in concrete surfaces using a one-component, hydrophilic polyurethane prepolymer without the addition of any granular impregnating agents The prepolymer is provided in a hand-held aerosol container and is injected into the cracks through hollow injection ports that are adhered in place on the surfaces over the cracks and subsequently closed off when filled. The crack is filled from the bottom up to prevent the formation of air pockets in the crack.

Abstract: A wall repair compound useful for filling and repairing cracks, holes, and other imperfections in a wall surface includes a conventional filler material, a conventional binder material, and a dust reducing additive which reduces the quantity of airborne dust particles generated when sanding the hardened joint compound. Airborne dust reducing additives include oils, surfactants, solvents, waxes, and other petroleum derivatives. The additive can be added to conventional ready-mixed joint compounds and to setting type joint compounds. A method of reducing the quantity of airborne dust generated when sanding a fully hardened joint compound includes mixing a sufficient quantity of the dust reducing additive with the joint compound prior to when the joint compound has been applied to the wall.

Abstract: Alkoxy RTV-1 compositions comprise the product of the reaction of (A) an HO-terminated organopolysiloxane, (B1) an alkoxysilane which has at least three alkoxy groups and/or its partial hydrolysates, and (B2) an alkoxysilane which has two alkoxy groups and/or its partial hydrolysates, in the presence of (C) an acid phosphoric ester of the general formula (I) (HO)aOP(—O—[(CR12)b—O]c[(CR22)d]e—L—M)(3−a)  (I), where a is 1 or 2, R1 and R2 are a hydrogen radical, methyl radical or hydroxyl radical, b and d are 2 or 3, c is an integer from 2 to 15, e is 0 or 1 L comprises a radical —O—, —COO—, —OOC—, —CONR3—, —NR4CO— or —CO—, R3 and R4 are a hydrogen radical or C1-C10-alkyl radical, and M is a monovalent, unsubstituted or hydroxyl-, fluorine-, chlorine-, bromine-, C1-C10-alkoxyalkyl- or cyano-substituted C1-C20-hydrocarbon radical, with the proviso that on any giv

Abstract: An injection or grouting body for the transfer of mechanical stresses in structures in above-ground or below-ground construction, and for insertion into a borehole, in slits or similar openings, has a centrally-arranged filling tube and at least one fabric stocking surrounding the filling tube. The filling tube is embodied as a fabric stocking and one or a plurality of reinforcing wires and/or rods, and/or pipes and/or ridged sheet metal strips are arranged on site so as to be adaptable, axis-parallel between the fabric stockings. An outer closed fabric stocking is arranged along the axis of the injection body about its inner filling tube (Fabric tube) that is open at its lower end. The reinforcing wires or rods are arranged on the outside of the inner fabric stocking and are attached to the fabric of the outer stocking in such a way that it can be ensured that, following filling or grouting, the reinforcement will remain in position.