Means for producing subaqueous and other cast-in-place concrete structures in situ
OwnerLee A. Turzilloinventor
Life of this patent
Estimating the term…
Abstract
Means for repairing or forming structural bodies of self-hardening fluid cement mortar, in a subaqueous or other situs, utilizing a body-forming cavity including body-shaping walls of porous fabric in combination with openwork matrix means. Fluid mortar or like cementitious material is pumped into the cavity to fill the same and expand the fabric walls against tensional restraint of the fixedly maintained matrix means. Pressure of fluid material may be continued against restraint of the matrix means until small proportions of the fluid material ooze through the porous fabric, which indicates attainment of a lower water-cement ratio in the formed body, after which the fluid material is allowed to set and harden to such given formed shape.
Claims11
A device for molding a cast-in-place concrete or like structure of predetermined shape and proportions in a subaqueous or other situs from self-hardenable fluid cementitious material comprising:
- container means of flexible, generally porous-walled fabric, and a matrix frame having means thereon for maintaining said matrix frame in rigidly affixed condition at the situs, and including means defining fixedly restrained body-shaping cavity wall portions for limiting distension of said flexible, generally porous-walled fabric of said container means against tensional restraint maintained between said fabric and fixedly restrained body-shaping wall portions of said matrix frame upon being filled with the fluid cementitious material to form a structure therein of like shape and size.
Apparatus for forming structural bodies from self-hardenable fluid cementitious material on a surface of a subaqueous or other situs, comprising:
- at least one, self-supportingly rigid openwork matrix means of substantial broad lateral area and having supporting means for supporting the same in self-supportingly rigid, upright condition on a surface of the situs, and bag-like container means including vertical body-forming walls, corresponding portions of said body-forming walls being restrained against distension by engagement with said rigid openwork matrix means for determining the volumetric size and shape of the desired structural body, upon filling said container means with such fluid cementitious material.
A mold for forming a cast-in-place concrete or like body from fluid self-hardenable cementitious material to given shape and size in a subaqueous or other situs comprising:
- matrix means having closure wall means defining bounds of a body-forming cavity of substantially such given shape and size, means for affixing said matrix means at the situs against outward distortion of said closure wall means from such given shape and size of such matrix means, said closure wall means having a substantial area of tension-restraining openwork material, flexible-walled bag means, and means for retaining said bag means within said body-forming cavity for reception therein of the fluid self-hardenable cementitious material to expand the walls of said bag means into said closure wall means, and thereby to form a self-hardenable body of such given shape and size.
Dependencies are inferred from the claim text.