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.