Abstract: A system and method for mixing and dispensing grout to be used for anchoring of bolts or bars in the floors, walls or ceilings of structures or excavations is disclosed. The system comprises a caulking tube in which grout components, a catalyst and a mastic, have been placed inside a plastic bag along with an assembly for mixing the grout and a mixing rod. When the grout is ready to be used the dispensing tip of the caulking tube is cut off and the mixing rod is inserted through the opening in the tip and into a slot cut in a wall of the mixing assembly. The other end of the mixing rod is formed so that it may be inserted into the chuck of a drill. When the drill is operated, the mixer assembly, upon which mixing blades have been installed, rotates and as the drill is pressed forward the mixer assembly is moved longitudinally through the tube mixing the components of the grout.

Abstract: A cartridge comprised of a multiplicity of at least four smaller longitudinal pockets, each pocket containing a component of a multi-component of a self-setting mix to provide blending together of intermixing of the components when the bundle of pockets in the cartridge are ruptured in a bore hole by inward pressure from an anchor element. In one embodiment of the invention the pockets are formed in partially filled envelopes so that when the envelopes are packed together in longitudinal relationship, the resulting cartridge has a generally circular cross-section. The cartridge is held within an outer porous casing, such as netting. In another embodiment of the invention the pockets extend from a common base.

Abstract: A cartridge assembly for the securement of anchor bolts in bore holes. The assembly comprises a cartridge having one component of a self-setting mix in a thin plastic casing, a chamber secured to the cartridge and having a sidewall with plural openings, and mechanical perforating means interposed between the cartridge and chamber. The second component of the mix is located within the chamber. The perforating means is arranged to mechanically rupture the cartridge and cause its contents to be carried to the chamber so that the two components intermix thoroughly and extrude through the chamber sidewall openings into the bore hole.

Abstract: A cartridge containing fast acting inorganic adhesive system, grouting compositions and method of use comprising in the preferred embodiment first and second components which are separately maintained as in a two component cartridge until just prior to use. The first component comprises a paste which includes magnesium oxide, a dispersing agent, such as a ligno sulfonate and water. The second component is comprised of a dihydrogen phosphate salt, such as mono hydrogen ammonium phosphate or sodium dihydrogen phosphate, and the combination of a trisodium phosphate and a second agent selected from the group consisting of a polyphosphate salt and an alkyl acid phosphate or both. The second component will also include a minor amount of water to make the paste.

Abstract: A pourable grout including a fast acting polyester adhesive systems and method of use comprising in a polyester resin cartridge a resin and a catalyst, the improvement lying in adding from 1 to 15% by weight of an ethylenically unsaturated monomer, and in replacing the presently used benzoyl peroxide catalyst with a catalyst mixture comprised of benzoyl peroxide and a halogen substituted benzoyl peroxide. The adhesive systems of this invention are utilized in a method of installation of resin bonded rock bolts in mining operations, particularly in cold climates, where speed of installation and reinforcement is essential.

Abstract: Fast acting polyester adhesive systems and method of use comprising in a polyester resin cartridge a resin and a catalyst, the improvement lying in replacing the presently used benzoyl peroxide catalyst with a catalyst mixture comprised of benzoyl peroxide and a halogen substituted benzoyl peroxide. The adhesive systems of this invention are utilized in a method of installation of resin bonded rock bolts in mining operations, particularly in cold climates, where speed of installation and reinforcement is essential.

Abstract: An anchor device to be used in a hole with a bolt in connection with a cartridge containing a hardenable resin or other fast setting material. The bolt has a threaded shank and at least one lug means extending from the threaded shank. The anchor is an elongate cylindrical shell with a central passage to receive the bolt, thereby forming an anchor-bolt unit. The anchor has a first open end and a second closed end and also has an internally threaded portion for receiving the bolt. The bolt extends outwardly at the first end with the lug means of the bolt being located adjacent the closed second end of the anchor. The anchor-bolt unit is inserted in the hole after the cartridge has been inserted in the hole whereby when the bolt is rotated in a first sense there is a tendency to unthread the bolt from the anchor, but the bolt lug prevents complete withdrawal and instead the anchor is rotated to expel and mix the contents of the cartridge.