Abstract Laminated sheet material, and apparatus utilizing the same, for producing and/or repairing structural bodies of self-hardening fluid cementitious material in a sub-aqueous and/or subterranian situs. Sheet material includes wire-mesh backing, and porous fabric bonded thereto, substantially without blocking of fabric pores, and is adapted for supplying in rolls or sheets to be cut and selectively formed at the situs into matrices or molds having body-forming cavities for producing or repairing concrete structures of many shapes and sizes. The apparatus includes such laminated sheeting formed as a substantially rigid matrix, suitably reinforced and/or anchored at the situs to have porous fabric layers presented inwardly, to define matrix cavity walls backed by the openwork material. Fluid cementitious material supplied to the matrix cavity adapted to harden into structural body corresponding to shape of matrix cavity, after which matrix can be readily removed therefrom.
Apparatus for molding a cast-in-place concrete or like structural body in a subaqueous or other situs, from selfhardenable fluid cementitious material, comprising: a matrix having body-forming cavity walls of given shape, and at least in part defined by pre-shaped laminated sheeting, said laminated sheeting including a relatively rigid backing of openwork sheet material adapted to be fixedly retained in the situs to maintain the cavity walls in given shape thereof, and a layer of porous fabric bonded to said backing on the cavity side of said backing to have porous areas of the fabric exposed outwardly through the openings of the backing substantially without blocking the pores of said exposed porous areas; said bonded porous fabric, and rigid backing of openwork sheet material thereby being adapted to retain said given cavity wall shape against internal pressure of fluid cementitious material supplied within the body-forming cavity for forming the structural body of said given shape of said cavity walls.
Claim 2
Dependent Claim
158 words
Apparatus for molding a cast-in-place concrete or like structural body in a subaqueous or other situs, from selfhardenable fluid cementitious material, comprising: a matrix having body-forming cavity walls of given shape, and at least in part defined by pre-shaped laminated sheeting, said laminated sheeting including a relatively rigid backing of openwork sheet material adapted to be fixedly retained in the situs to maintain the cavity walls in given shape thereof, and a layer of porous fabric bonded to said backing on the cavity side of said backing to have porous areas of the fabric exposed outwardly through the openings of the backing substantially without blocking the pores of said exposed porous areas; said bonded porous fabric, and rigid backing of openwork sheet material thereby being adapted to retain said given cavity wall shape against internal pressure of fluid cementitious material supplied within the body-forming cavity for forming the structural body of said given shape of said cavity walls.
Claim 3
Dependent Claim
24 words
Apparatus as in claim 1, said openwork material being wire mesh material with said porous fabric tenaceously bonded thereto around said exposed porous areas.
Claim 4
Dependent Claim
18 words
Apparatus as in claim 1, said openwork material being wire-mesh material with said porous fabric tenaceously bonded thereto.
Claim 5
Dependent Claim
26 words
Apparatus as in claim 1, said openwork material being of square-mesh wire material with the porous fabric adhesively bonded thereto at a multiplicity of spaced points.