Multiple chamber cartridge for adhesive anchoring of fasteners i

Details Multiple chamber cartridge for adhesive anchoring of fasteners i Multiple chamber cartridge for adhesive anchoring of fasteners i

1990-08-27

1992-01-14

Reese, Randolph A.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

525 31, 525524, E21D 2002

Patent

active

050805312

ABSTRACT:
A destructible multiple chamber cartridge for the in situ production of synthetic resin bodies from a reactive set for fastening anchoring elements in boreholes. The reactive set comprises between 18 and 25 parts by weight of a preaccelerated resin component composed of 3-60 parts by weight of a vinyl ester epoxy resin, 28-45 parts by weight of one or several ethylenically unsaturated monomer compounds, 63-3 parts by weight of an unsaturated polyester, and 10-0.1 parts by weight of epoxy resin. The reactive set further comprises 0.4-1.2 parts by weight of a hardener component comprising an organic peroxide, and 40-55 parts by weight of a filler component. The hardener component and the preaccelerated resin component are contained separate from each other in different chambers. When the fastening element is driven into the borehole, the cartridge is destroyed and the components are mixed and hardened, forming the synthetic resin body.

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Soviet "Inventions Illustrated", Sections P,Q: General/Mechanical Week K11, issued Apr. 27, 1983.

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