Abstract: The present application relates to a Kelly bar arrangement for a drilling apparatus and a method for working the ground with the drilling apparatus. The arrangement includes a tubular outer Kelly bar and an inner Kelly bar which is displaceably supported inside the outer Kelly bar and has a rope suspension. The drilling torque can be transmitted between the outer Kelly bar and the inner Kelly bar. At least one line is arranged on the inner Kelly bar. A rotary feedthrough with a first attachment section and a second attachment section is arranged in a lower or upper end region of the inner Kelly bar. The rotary feedthrough includes a rotary device arranged for actively rotating the two attachment sections relative to each other.

Abstract: The present disclosure provides a concrete structure strengthened using a grid reinforcement material and non-shrink grout and a method of strengthening the same in which, when strengthening a concrete structure such as a concrete slab or a concrete wall body that is damaged or deteriorated, a grid reinforcement material is mounted on one side of the concrete structure, a formwork is formed on an outer side of the grid reinforcement material to have a required gap, and then the gap is filled with non-shrink grout so that the non-shrink grout is cured therein to strengthen the old concrete structure, thereby being able to automatically fill and repair cracks formed in the concrete structure just by injecting the non-shrink grout without separately performing crack repair on the old concrete structure.

Abstract: An object of the present invention is to provide a method for accurately modifying a concrete slab on subsided ground by injecting an expandable resin below the concrete slab more than once, which also allows for easy control of the work process. The method of the present invention as a means for resolution includes performing the following steps: on a concrete slab in an area including a region where ground subsidence has occurred, determining points to drill injection holes for injecting an expandable resin at a pitch of 0.5 to 2.0 m in a grid pattern or a staggered pattern; injecting an expandable resin below a point where the subsidence of the concrete slab is severest and expanding the expandable resin to push up the concrete slab at most 30 mm more than once.

Abstract: The invention provides a device for thermal ablation at a site in a subject. The apparatus comprises an expandable bladder; a displacement chamber having a variable volume; an elongated catheter forming fluid communication between the bladder and the displacement chamber; and a heater for heating the fluid. To obtain an improved pressure control and a reliable structure, the chamber comprises a syringe structure including a piston movable in a cylinder by power driven means for varying the volume of the displacement chamber.

Abstract: The present invention relates to PVC resin flooring in which a tile is molded out of PVC, that is, vinyl chloride resin, and the four-sided edges of the tile are molded into curved surfaces. The PVC resin flooring constructed in a floor includes a resin tile configured to include a base layer and a surface layer, wherein the surface layer comprises a dimension stabilization layer, a balance layer, a printing layer, a transparent layer, and a protection layer sequentially stacked on a top surface of the base layer, the base layer and the surface layer are made of PVC resin and jointed, and the four-sided edges of the resin tile are molded into curved surfaces; and a grouting constructed in a gap between the resin tiles, wherein the resin tile is constructed by coating an adhesive on a construction floor, the resin tiles are spaced apart from one another at intervals, and construction is finished by filling the gap between the resin tiles with the grouting.

Abstract: Presented are methods of assembling and disassembling a modular unit so that the modular unit. The modular unit includes at least a concrete column with an embedded steel receptacle and an access port, and a concrete joist/slab with an embedded steel receptacle and an access port. The methods include inserting a first end of the rigid member into the steel receptacle of the joist/slab and a second end of the rigid member into the steel receptacle of the column to form the modular unit. The first and second ends of the rigid member are releasably coupled to the steel receptacles of the joist/slab and column, respectively. The first and second ends of the rigid member are then decoupled from the steel receptacles of the joist/slab and column, respectively. The joist/slab, column, and rigid member are separated so that at least joist/slab and column can be reused and/or recycled.

Abstract: In a joint method for a reinforcing bar using a reinforcement joint having a grout inlet at one end and a grout outlet at the other end, the grout inlet is fitted with a sealing body provided with a check valve, and the grout outlet is fitted with a sealing plug provided with a piston body which is moved outward when the reinforcement joint is filled with grout, whereby the filling of the reinforcement joint can be visually confirmed.

Abstract: An insulated core for a building block for a building wall, the block has spaced apart parallel face shells with the insulating core filling the space between the parallel face shells. The insulating core defines spaced apart parallel surfaces for engaging the respective face shells. The insulating core is provided with channels such that when the block forms part of a wall with other blocks, the channels form intersecting uninterrupted passageways for receiving elongated reinforcing members and grout to provide a reinforcing structure to the wall. A method of preparing a structural insulating wall for buildings and an insulating core including a metal connecting bar with lateral wings provided within at least one male interlocking member to provide a thermal break are also disclosed.

Abstract: A new inner passageway through a pre-cast concrete structure damaged by corrosion may be formed by stackable inserts formed of polymer concrete. The inserts may be stacked in the old passageway through the pre-cast concrete structure such that an inner surface of the stacked inserts forms a new passageway through the pre-cast concrete structure. A grout may be poured between an outer surface of the stacked inserts and an inner surface of the pre-cast concrete structure forming the old passageway. The surfaces of the stackable inserts may have superior resistance to corrosive acids such that the need for future repair is greatly reduced. Suitable pre-cast concrete structures for rehabilitation include pre-cast concrete structures utilized in wastewater systems, including manholes and other similar structures. In this manner, the damaged pre-cast concrete structures do not need to be removed during the rehabilitation.

Abstract: A non-aqueous drywall compound being the combination of a first component mixture of acetone, a non-aqueous liquid adhesive containing ethyl cyanoacrylate, and a powder containing calcium sulfate hemihydrate (plaster of Paris), the mixture being a pliable putty capable of adhering to gypsum wallboard or similar work surfaces. The second component of the drywall compound is an accelerator or activator containing acetone and toluene. The first component is applied to a defect in a work surface using a spreading tool and the second component is then applied to the exposed surface of the first component, such as by spraying or brushing, whereupon the drywall compound cures, hardens or sets within less than ten minutes to a state capable of being sanded into a smooth, hard surface and painted.

Abstract: Disclosed is a system and method for providing a concrete crack repair system that is capable of providing a pressurized seal that continues to resist the ingress of water even as the crack continues to open and close over time. A compressible seal is provided that may be inserted into and adhesively joined to a machined groove that follows the contour of the crack in the concrete surface. After its installation in the machined groove, grout may be injected into the machined groove below the compressible seal so as to fill the space between the compressible seal and the bottom of the machined groove, which grout may also flow into the groove that is adjacent the bottom of the machined groove, thus allowing pressurized grouting of the crack itself. The compressible seal may also include an interior, hollow chamber that may allow inflation of the compressible seal within the machined groove, thus forming a permanent pressurized seal above the crack.

Abstract: Disclosed is a method of reinforcing a structure (10) having an elongate hole (14) or drilling the hole having an open proximal end (11) and a closed distal end (16). The method comprises the steps of inserting into the open end of the hole an elongate reinforcement core (20) carrying over at least part of its length an expandable sock (30), introducing a settable liquid (40), such as grout, into the sock at a first pressure so as to cause expansion of the sock toward the wall (18) of the hole (14), the sock being formed from a material which is permeable to the grout so as to allow the liquid to seep through the sock, reducing the pressure in the hole by means of a vacuum tube (23), whilst said introducing step is taking place, to at least a second pressure lower than the first pressure so as to encourage the grout to seep through the sock, to substantially fill the hole.

Abstract: Presented are methods of assembling and disassembling a modular unit so that the modular unit. The modular unit includes at least a concrete column with an embedded steel receptacle and an access port, and a concrete joist/slab with an embedded steel receptacle and an access port. The methods include inserting a first end of the rigid member into the steel receptacle of the joist/slab and a second end of the rigid member into the steel receptacle of the column to form the modular unit. The first and second ends of the rigid member are releasably coupled to the steel receptacles of the joist/slab and column, respectively. The first and second ends of the rigid member are then decoupled from the steel receptacles of the joist/slab and column, respectively. The joist/slab, column, and rigid member are separated so that at least joist/slab and column can be reused and/or recycled.

Abstract: Presented are methods of assembling and disassembling a modular unit so that the modular unit. The modular unit includes at least a concrete column with an embedded steel receptacle and an access port, and a concrete joist/slab with an embedded steel receptacle and an access port. The methods include inserting a first end of the rigid member into the steel receptacle of the joist/slab and a second end of the rigid member into the steel receptacle of the column to form the modular unit. The first and second ends of the rigid member are releasably coupled to the steel receptacles of the joist/slab and column, respectively. The first and second ends of the rigid member are then decoupled from the steel receptacles of the joist/slab and column, respectively. The joist/slab, column, and rigid member are separated so that at least joist/slab and column can be reused and/or recycled.

Abstract: The present invention provides ergonomic grouting tools attached to a glove, mitt, brace, or other passive retention means worn on the hand of a user and methods of using them. In particular, one grouting tool according to the invention includes an elongate tool blade, which may for example be a squeegee, a hollow flexible tube, or a solid, flexible, generally round member, attached proximate to and extending along the fifth digit side of a glove. Reinforcement material integral with the tool blade is preferably included to prevent the tool blade from pulling away from a user's hand during use. The glove itself may be composed of fabric dip-coated in plastic, or otherwise waterproofed/sealed, over palm and finger portions, and uncoated over a wrist region and part of a region covering the back side of a user's hand to provide breathability and comfort.

Abstract: A modular concrete building is made of a plurality of precast concrete panels which may be assembled to provide a building. The panel sections include lower frame panels or support members, wall panels, floor panels, and flat roof panels. The building may be assembled by securing the floor panels to the support members, securing the wall panels to the floor panels, and securing the roof panels to the wall panels and to adjacent roof panels. The roof panels may have rigid insulation. The roof panels may have tapered rigid insulation or the modular building may be constructed with the roof panels in a tilted position.

Abstract: The present invention relates to a tower foundation system (30) comprising a foundation (32) for a bottom section (36) of a tower, which bottom section (36) is to be connected to the upper part of the foundation (32), wherein the bottom section (36) is cast into the foundation (32) with an ultra high performance grout (42).

Abstract: A self-leveling grout provides a level surface for the disposition of a wind turbine base. The self-leveling grout is placed within the foundation grout trough as an initial slurry having a viscosity at ambient temperature approximately the same as the viscosity of known grout slurries utilized in turbine foundations. After placement in the grout trough, elevated temperature is applied to the grout slurry, which lowers the viscosity of the slurry such that the slurry becomes self-leveling and the top surface assumes a nearly perfectly level surface. Additional elevated temperature is applied which initiates the curing of the grout to the required compressive strength for supporting the turbine tower.

Abstract: A demountable and remountable wall assembly for partitioning room space between an overhead and a floor, the major elements of which are reusable. The assembly provides one or two walls, at lease one of which has an outer fastener-free surface. Additionally, the fastener-free surface may be made substantially smooth and seamless. The walls are arranged in planar congruence, separated by internal spacers or studs, and vertically positioned between the overhead and floor of the room space to be partitioned. Removable tracks or spacers at the top and bottom of the wall assembly serves to interface the wall assembly with the floor and ceiling of the space. The walls are constructed of either finished or unfinished wall panels (e.g., fabric covered or sheet rock panels) which are incorporated into the assembly using a combination of removable fasteners and releasable adhesives. The finished or exposed area of a wall surface includes no fasteners.

Abstract: The present disclosure includes various brackets and systems for forming tiled transitions between surfaces. One bracket embodiment for forming a tiled transition between a first surface and a second surface forming an inside corner includes a first base portion securable to the first surface, a second base portion securable to the second surface, a receiving slot angled with respect to the first and second surfaces for receiving a tile strip to form the tiled transition, and a channel for receiving a filler material adjacent to the receiving slot.

Abstract: A demountable and remountable wall assembly for partitioning room space between an overhead and a floor, the major elements of which are reusable. The assembly provides one or two walls, at lease one of which has an outer fastener-free surface. Additionally, the fastener-free surface may be made substantially smooth and seamless. The walls are arranged in planar congruence, separated by internal spacers or studs, and vertically positioned between the overhead and floor of the room space to be partitioned. Removable tracks or spacers at the top and bottom of the wall assembly serves to interface the wall assembly with the floor and ceiling of the space. The walls are constructed of either finished or unfinished wall panels (e.g., fabric covered or sheet rock panels) which are incorporated into the assembly using a combination of removable fasteners and releasable adhesives. The finished or exposed area of a wall surface includes no fasteners.

Abstract: A method of erecting a pylon of a wind power installation is provided. The method includes providing a foundation and placing a plurality of height adjusting units on the foundation. The height adjusting units are made substantially from a plastic material. A load distribution ring is placed on the plurality of height adjusting units. The load distribution ring is straightened and leveled by adjustment of the height adjusting units. A gap between the foundation and the load distribution ring is filled with a grouting material. A pylon segment is placed on the load distribution ring after the grouting material has reached a predetermined strength.

Abstract: A concrete container including a concrete footing including a shear key; a concrete wall inserted in the shear key; a plurality of footing reinforcing members inserted in the concrete footing on a support side of the shear key and extending above the concrete footing; a plurality of wall reinforcing members inserted in the concrete wall on a support side of the concrete wall and extending diagonally towards the concrete footing; a poured concrete moment connection substantially covering the plurality of footing reinforcing members extending from the pre-cast concrete footing and the plurality of wall reinforcing members extending from the wall.

Abstract: A construction assembly for interior works including prefabricated elements, wherein the prefabricated elements include a coating layer formed of at least one skim coat deposited on the prefabricated elements by a coating device; and at least one jointing material, e.g. a sealing coat, joint coat and/or joint pointing coat, which joints adjacent said prefabricated elements to form a substantially plane outer surface.

Abstract: A method and system for constructing a concrete waterstop joint between first and second concrete portions. The method may include applying a continuous longitudinal cementitious and reactive waterproofing grout strip to a joint area of the first concrete portion and then forming the second concrete portion over the grout strip. The system may include a first concrete portion having a joint area, a continuous cementitious and reactive waterproofing longitudinal grout strip connectable to the joint area, and a second concrete portion formable over the grout strip. There is also provided a use of a cementitious and reactive waterproofing grout strip in the construction of a concrete waterstop joint between first and second concrete portions.

Abstract: A method for producing a tower foundation is provided The method includes providing a tower adapter having a cylindrical portion extending in a longitudinal direction of the adapter and a first lateral portion extending perpendicularly to the cylindrical portion at a first end thereof, and having a plurality of first through-holes, wherein the ratio of a maximum longitudinal extension and a maximum lateral extension of the adapter is smaller than or equal to 1 and providing an anchor and anchor bolts. The method also includes forming a foundation including the anchor and the anchor bolts, wherein the anchor bolts extend from the anchor to an upper surface of the foundation and protrude from the upper surface, and placing the adapter on the anchor bolts so that the anchor bolts extend through and protrude from the first through holes and a space is provided between an upper surface of the foundation and a lower surface of the adapter.

Abstract: Disclosed is a system and method for providing a concrete crack repair system that is capable of providing a pressurized seal that continues to resist the ingress of water even as the crack continues to open and close over time. A compressible seal is provided that may be inserted into and adhesively joined to a machined groove that follows the contour of the crack in the concrete surface. After its installation in the machined groove, grout may be injected into the machined groove below the compressible seal so as to fill the space between the compressible seal and the bottom of the machined groove, which grout may also flow into the groove that is adjacent the bottom of the machined groove, thus allowing pressurized grouting of the crack itself. The compressible seal may also include an interior, hollow chamber that may allow inflation of the compressible seal within the machined groove, thus forming a permanent pressurized seal above the crack.

Abstract: An annular preform is constructed of predeterminable width and height and filled with a predeterminable quantity of a fluid grouting material. After setting of the grouting material and removal of the formwork a ring is placed on the surface of the set grouting material and a lower pylon segment is placed on the ring and connected thereto.

Abstract: A laminated tile mosaic sheet having a laminated sheet made of a mesh grid and a plurality of tiles each with an ornamental surface and attached in spaced apart relation to have gaps between the tiles, and a backer sheet having a first adhesive surface and an opposing second adhesive surface and a second mesh grid, the laminated sheet attached to the first adhesive surface, and a cover sheet detachably attached to the second adhesive surface, whereby the tile mosaic sheet attaches to a surface upon removal of the cover sheet. A method of installing a thin-tile mosaic sheet to a surface is disclosed.

Abstract: A process for grouting floors using a two-part reactive epoxy grout formulation comprising two distinct components (parts) which can utilize a two-part cartridge for storing, metering and having a means of attaching a static mixer tube to the front of the cartridge for inline mixing of the epoxy components as they are being dispensed directly into the grout joint. The cartridge contains a resin and pre-colored hardener, which maybe heated to accelerate the cure speed in cold environments if necessary, mixed, and applied to an empty grout joint-line by means of a static mixer tube that acts as a mixer-nozzle. Masking tape or other protective material is placed on both sides of the joint-line prior to grouting to prevent epoxy contacting tile faces. The grout is dispensed directly into the grout joint by the applicator gun pressurizing the cartridge pistons to flow epoxy resin and hardener in the correct mix ratio through the static mixing nozzle.

Abstract: Structure and procedure for erecting concrete towers used in wind turbines in which said towers consist of sections, which in turn may each comprise a different number of segments or longitudinal sections. The procedure includes two differentiated cycles, which may take place alongside each other: the pre-assembly of each section of tower and their assembly. The sections may be pre-mounted on bases placed on the ground, with the segment in turn fitted with the help of struts and mechanical clamps. This procedure is extremely versatile in that it makes the best logistic use of the material, resources and requisite assembly times since the assembly procedures for each section can be developed alongside each other in the different wind farm towers, and also greater heights can be achieved than is traditionally possible.

Abstract: Provided is a strengthening device to increase the strength of a grout layer. In the strengthening device, clamp members are interconnected and clamped to surround a grout layer on a concrete base, on which an upper structure is installed, so as to increase the strength of the grout layer. Connection members are provided to edges of the clamp members to connect the clamp members. Fastening means is fastened between the connection members in order to enable the clamp members to clamp the grout layer. This strengthening device acts as a mold to facilitate easy construction when grout is placed, and surrounds the grout layer to increase the strength of the grout layer after grout is cured, thereby effectively preventing and minimizing failure of the grout layer caused by loads transferred from an upper structure such as a column member or a bridge bearing.

Abstract: A wall resurfacing kit for allowing users to quickly and easily resurface a damaged wallpapered surface includes a plurality of rectangular mesh screen sheets. The plurality of mesh screen sheets are made of fiberglass and are directly attachable to the wallpapered surface. The wall resurfacing kit further includes a reinforcing member. The reinforcing member is applied directly onto the mesh screen sheets such that the reinforcing member penetrates through the mesh screen sheets. The reinforcing member directly couples the plurality of mesh screen sheets to the wallpapered surface. The wall resurfacing kit further includes a set of instructions indicating a decoration mode. The decoration mode is used to decorate the wallpapered surface.

Abstract: A nozzle for applying filler material within a groove is provided that includes a plate member, an orifice through the plate member, a guide member for engaging the groove, and a pliable attachment. The orifice is in communication with a supply of the filler material. The guide member protrudes from the plate member and has a width less than the groove. The pliable attachment has a channel with an angled portion for directing the filler material into the groove. The nozzle may also be used independent from the attachment.

Abstract: A spatula device (10) has a handle portion (12) and a blade portion (14) connected to one end of the handle portion and so as to form a longitudinal axis of the spatula device. The blade portion has a permanent curvature which is radiused about a line transverse of the longitudinal axis, whereby the spatula device may be used to apply grout and other filler material to a curved surface without the user having to bend the blade portion.

Abstract: A demountable and remountable wall assembly for partitioning room space between an overhead and a floor, the major elements of which are reusable. The assembly provides one or two walls, at lease one of which has an outer fastener-free surface. Additionally, the fastener-free surface may be made substantially smooth and seamless. The walls are arranged in planar congruence, separated by internal spacers or studs, and vertically positioned between the overhead and floor of the room space to be partitioned. Removable tracks or spacers at the top and bottom of the wall assembly serves to interface the wall assembly with the floor and ceiling of the space. The walls are constructed of either finished or unfinished wall panels (e.g., fabric covered or sheet rock panels) which are incorporated into the assembly using a combination of removable fasteners and releasable adhesives. The finished or exposed area of a wall surface includes no fasteners.

Abstract: A drywall joint construction and method consisting essentially of abutting drywall boards having a lengthwise crack therebetween and a joint finishing system formed within the crack to complete the drywall joint construction such that a flexible layer defines the joint's center-line surface. Where the drywall boards are non-tapered, the resulting crack therebetween may be filled with a flexible compound that also forms the flexible layer and flushes the joint finishing system with the drywall boards.

Abstract: A curtain wall system and method comprises supporting channels including vertical receiving and retaining members which engage kerfs formed in the lower edges of curtain wall members. Latching members have locating and retaining members which are received in kerfs form in the upper edges of the curtain wall members. The curtain wall members are rotated inwardly causing the latching members to slide along the under surfaces of the supporting channels and into engagement with locking members. A second embodiment comprises supporting channels and latching members having spaced apart vertically disposed locating members which receive the opposite ends of the curtain wall members. A third embodiment comprises gap filling members which are received between adjacent curtain wall members and comprise hooks located adjacent to the lower ends of the gap filling members for engagement with vertically disposed receiving and retaining members extending upwardly from supporting channels.

Abstract: Provided is a grout member for a modular floor. The grout member includes a core having a wedge shape, wherein the core consists of a horizontal strut interconnecting two vertical supports. A flange extends from each vertical support to position and secure the grout member in position The core supports a surface section which is oriented toward the user.

Abstract: A construction assembly includes a plurality of plaster boards, each of the plaster boards having a plaster body and at least one sheet of liner, the liner including an inner surface attached to the plaster body and an outer surface having an outer face; wherein said plaster boards are assembled creating at least one joint; and a joint-pointing coat jointing said plaster boards to form a substantially plane outer surface including the outer surface of said at least one joint and said outer surface of said liner, wherein the composition of the joint-pointing coat is adapted for the finishing of said at least one joint; wherein both the joint-pointing coat in the dry state and the outer face of the sheet of liner are adapted to form an overall surface having a substantially homogeneous coloration.

Abstract: A method of making a grout composition which reduces the amount of bleed water from grout used in bonded post-tensioned concrete applications is provided. The method includes forming the grout composition by combining copolymers with other materials into a hydraulic cementitious composition. The copolymers are formed from structural components a) to c) and optionally d) which are mono-unsaturated compounds, with a generally linear macromolecular structure. By reducing the amount of bleed water in bonded post-tensioned concrete applications the grout composition provides protection from corrosion for the steel members, including stranded tendons and solid bars. The reduction in the amount of bleed water is achieved without significantly increasing the viscosity of the grout mixture thereby allowing good pumpability, placement, and maintenance of other properties such as resistance to volume change, long working time and acceptable strength development.

Abstract: A method impedes transverse relative displacements of a pipe (2) and at least one cable (3) which extends in this pipe (2), and doing so with a certain transverse play (4). The method has the steps of: selecting at least one portion (8), of a predetermined longitudinal dimension (L8), of pipe (2), and, then, with the cable (3) inserted in the pipe (2), locally constructing between the cable (3) and said pipe (2) at least one wedging element (9) adapted to suppress the transverse play (4) existing between the cable (3) and the pipe (2) in said at least one selected pipe portion (8).

Abstract: A tile grout composition and method of using the tile grout composition to grout set tiles are provided. The tile grout composition is a water-based epoxy grout composition which has excellent stain and chemical resistant properties and is workable and easy to clean up after grouting the tiles. The grout composition employs a water dispersible epoxy polymer and a water compatible polyamine epoxy resin adduct as the curing agent in combination with a water repellent component. For colored grouts, a color coated filler such as sand is employed to obtain the enhanced tile grout properties. Luminescent and fluorescent additives and sparkle additives may be used in the grout to provide special visual effects in the light or dark.

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.

Abstract: A spacer is provided that includes at least one rail of plastic, steel, rebar, or the like that runs along a top surface of a modular construction material such as a brick or block. At least one transverse rail is connected to the length-running rail. The transverse rail is also constructed of plastic, steel, rebar, or the like and runs width-wise along the top surface of the brick/block. Connected to the rails is a number of spacing studs that define a desired mortar depth. The spacing studs may include removable clips that are configured to engage the rails. Accordingly, the clips have a height equal to the desired mortar depth. The present invention may alternatively include a kit comprising the rails, clips, and bricks/blocks.

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 tile grout composition and method of using the tile grout composition to grout set tiles are provided. The tile grout composition is a water-based epoxy grout composition which has excellent stain and chemical resistant properties and is workable and easy to clean up after grouting the tiles. The grout composition employs a water dispersible epoxy polymer and a water compatible polyamine epoxy resin adduct as the curing agent in combination with a water repellent component. For colored grouts, a color coated filler such as sand is employed to obtain the enhanced tile grout properties. Luminescent and fluorescent additives and sparkle additives may be used in the grout to provide special visual effects in the light or dark.

Abstract: A wood deck connection system and a method for the installation of wooden deck panels using the system is disclosed. The reliable shear withdrawal connection system comprises a headed connector mechanically fastened to a steel, concrete or wooden girder, a wood-based deck panel having a receiver hole bored therein, and a grout agent deposited throughout the receiver hole. The deck connection system enables top-side installation of deck panels and provides improved shear strength, withdrawal resistance, reliability and fatigue behavior of the wooden deck system.

Abstract: A method and apparatus for constructing hollow metal frames having a grout filled interior is disclosed. An apparatus includes a substantially planar body having an upper and lower surface. The upper surface includes at least one grip. The lower surface includes a gasket and a number of protrusions. The protrusions are placed into holes on the hollow metal frame into which additional components such as hinges are to be added. Grout is added to the frame and allowed to harden. Once the grout is hardened, the grout guard is removed and air spaces are retained. Screws and other components are typically filled into the air spaces.

Abstract: Disclosed is a unitary resilient insert member for filing an expansion joint gap formed between adjacent concrete slabs, floor tiles, or the like wherein the insert member consisting essentially of a preassembled wedge shape form. Also disclosed is a method for sealing the gap located between adjacent flooring or structural members by filling the said gap with a sealing material insert.