C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/45
C04B 2/02 (2006.01) C04B 41/00 (2006.01) E04G 23/08 (2006.01) E21C 37/00 (2006.01)
Patent
CA 1275660
Abstract An expansive demolition agent prepared by crushing a clinker for manufacturing powdered expansive demolition agent obtained by calcination or sintering, which is capable of hydrating and expanding in a hole drilled in a brittle material to demolish the brittle material, the maximum particle diameter of the agent being one-third or less the diameter of the hole, and containing 10% or less of fine particles having a particle diameter of 0.3 mm or less.
520335
Hida Toshiharu
Ishii Shiro
Kubota Hachiro
Migita Junichiro
Onoda Cement Co. Ltd.
Swabey Ogilvy Renault
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