B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/56, 61/65
B05D 1/02 (2006.01) B28C 5/00 (2006.01) B28C 5/40 (2006.01) E21D 11/10 (2006.01)
Patent
CA 1125584
ABSTRACT OF THE DISCLOSURE A method is provided for blasting concrete or mortar against a surface to be coated using a blasting nozzle. The method includes the steps of: preparing a slurry-like, freshly mixed, fluid composition by admixing a powder of an hydraulic substance and water; conveying the slurry-like freshly mixed fluid composition to a remote location through a conduit, under pressure; conveying an agreegate through a separate conduit to the remote location under pressure; combining the slurry-like composition and the aggregate at the remote location by intro- ducing the slurry-like composition into the conduit conveying the aggregate to form a unified mixture and conveying the unified mixture through a common conduit to the blasting nozzle; and blasting the unified mixture against the surface to be coated the unified mixture being formed substantially immediately before the blasting nozzle. By the method, the generation of dust is minimized. It is possible thereby to produce thick layers of concrete having high strength.
326548
Higuchi Yoshiro
Ito Yasuro
Kaga Hideharu
Mochida Yutaka
Sumita Tadayuki
Ito Yasuro
Marcus & Associates
Taisei Corporation
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