Long shelf life cementitious anchoring capsule

Details Long shelf life cementitious anchoring capsule Long shelf life cementitious anchoring capsule

C - Chemistry, Metallurgy

04

B

217/11, 261/45

C04B 20/10 (2006.01) C04B 28/06 (2006.01) C04B 40/06 (2006.01) E21D 20/02 (2006.01) F16B 13/14 (2006.01)

Patent

CA 1209595

ABSTRACT A frangible anchoring capsule has separate compartments containing the interactive components of a self setting cementitious composition. One component preferably comprises a paste of a high alumina cement and an additive to form a water insoluble coating on the cement particles e.g. an oxide or hydroxide coating, and a complexing agent to complex any cement ions released into solution e.g. ethylene diamiane tetra acetic acid. The other component comprises a paste of a catalyst for the cement e.g. a lithium salt, and a material which will relaese the coating on the cement particles, e.g. a base. The capsule has a long shelf life.

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