C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 18/08 (2006.01) B05B 7/04 (2006.01) B28B 1/32 (2006.01) C04B 28/02 (2006.01) C04B 32/02 (2006.01) E04F 21/12 (2006.01)
Patent
CA 2075708
2075708 9112215 PCTABS00006 There is disclosed cementitious compositions, methods for spray coating such compositions, a gun and apparatus suitable for effecting such spraying techniques, principally applicable in the field of civil construction and repair and particularly in forming pre-cast ferrocement sections, in lining or relining sewers and other water courses or in applying ferrocement cladding to buildings or other civil structures. The compositions are based on cement powder, silica sand, water and optionally fly ash and possibly other minor additives. In the method, steel wire mesh is supported and sprayed with the composition by means of a particular form of gun (5) supplied with mortar and compressed air, as part of an overall apparatus which includes pump means (3) and air compressor means (6) enabling spray applications to be effected remote from the mortar supply and even underground in the in-situ lining of sewers. Adjustibility of the spray pattern is possible and control of the mortar supply and air pressures help to reduce the problems of excessive spray formation and rebound of applied mortar.
Monk Construction Limited
Rogers & Scott
LandOfFree
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