Induction Welded Waterproofing
In accordance with an embodiment of the disclosure, A water-proofing laminate includes a drainboard having a first surface positioned against a hydraulic source and a second surface opposed to the first surface, a fastener plate positioned against the second surface of the drainboard securing the drainboard to the hydraulic surface, the fastener plate comprising a conductive element and a thermoplastic resin, and a self-healing hydraulic barrier comprising a thermoplastic surface adjoined to a geotextile and carrying a water-absorbent material, the thermoplastic surface inductively welded to the fastener plate.
1 . A water-proofing laminate comprising:
a drainboard having a first surface positioned against a hydraulic source and a second surface opposed to the first surface;
a fastener plate positioned against the second surface of the drainboard securing the drainboard to the hydraulic surface, the fastener plate comprising a conductive element and a thermoplastic resin; and
a self-healing hydraulic barrier comprising a thermoplastic surface adjoined to a geotextile and carrying a water-absorbent material, the thermoplastic surface inductively welded to the fastener plate.
2 . The water-proofing laminate of claim 1 further comprising a fixing member (mechanical fastener) that secures the drainboard to the hydraulic source, wherein at least a portion of a fixing member passes through the fastener plate and the drainboard and into the hydraulic source.
3 . The water-proofing laminate of claim 1 , wherein the drainboard comprises a geotextile; wherein the geotextile is positioned against the hydraulic source.
4 . The water-proofing laminate of claim 3 , wherein the drainboard further comprises a drainage core adhered to the geotextile.
5 . The water-proofing laminate of claim 4 , wherein the drainage core comprises a geonet.
6 . The water-proofing laminate of claim 4 , wherein the drainage core comprises a dimple core.
7 . The water-proofing laminate of claim 1 , wherein the hydraulic source comprises an sub-grade retaining and/or shoring wall.
8 . The water-proofing laminate of claim 1 , wherein the hydraulic source comprises a tunnel wall.
9 . The water-proofing laminate of claim 1 , wherein the hydraulic source supplies a hydraulic force on the drainboard.
10 . The water-proofing laminate of claim 1 , wherein the fastener plate consists essentially of a plate-like main member made of the thermoplastic resin, and a conductive sheet made of the conductive element that is adhered to the main member.
11 . The water-proofing laminate of claim 10 , wherein the conductive sheet is provided as a layer within the plate-like main member.
12 . The water-proofing laminate of claim 1 , wherein the fastener plate comprises a conductive support having a securing surface, a welding surface, and comprising the conductive element; the welding surface carrying the thermoplastic resin.
13 . The water-proofing laminate of claim 1 , wherein the self-healing hydraulic barrier comprises a water-impermeable layer carrying the thermoplastic surface, the water-impermeable layer adhered to the geotextile; wherein the water-absorbent material is impregnated in the geotextile and adhered to the water-impermeable layer.
14 . The water-proofing laminate of claim 13 , wherein the water-impermeable layer further comprises a thermoplastic layer that carries the thermoplastic surface, and an adhesive layer that adheres to the geotextile and the water-absorbent material.
15 . The water-proofing laminate of claim 1 , wherein the self-healing hydraulic barrier carries the water-absorbent material between the thermoplastic surface and the geotextile.
16 . The water-proofing laminate of claim 1 , wherein the water-absorbent material is selected from the group consisting of a super-absorbent polymer, a clay, and a mixture thereof.
17 . The water-proofing laminate of claim 1 , wherein the water-absorbent material comprises a salt-water swellable composition.
18 . The water-proofing laminate of claim 17 , wherein the salt-water swellable composition comprises:
about 30 wt. % to about 60 wt. % of a smectite clay;
about 5 wt. % to about 25 wt. % of a partially cross-linked acrylamide/partially neutralized acrylic acid copolymer;
about 3 wt. % to about 15 wt. % of at least one elastomeric resin;
about 5 wt. % to about 30 wt. % of a cationic flocculant; and
about 0.5 wt. % to about 25 wt. % of at least one primary plasticizing agent for the elastomeric resin.
19 . A water-proofing laminate comprising:
a hydraulic surface exposed to a hydraulic source and carried by a drainboard;
the drainboard held in a fixed position by a fastener plate; and
the fastener plate welded to a thermoplastic surface carried by a shelf-healing hydraulic barrier.
20 . A water-proofing laminate comprising:
a hydraulic surface carried by a drainboard;
a dry surface carried by a self-healing hydraulic barrier; and positioned between the hydraulic surface and the dry surface;
a fastener plate affixed to the drainboard and welded to a self-healing hydraulic barrier.
21 . A water-proofing laminate comprising:
a plurality of fastener plates individually comprising a conductive element and a thermoplastic resin; and
a self-healing hydraulic barrier comprising a thermoplastic layer adjoined to a geotextile and carrying a water-absorbent material; wherein the self-healing hydraulic barrier is adjoined to the plurality of fastener plates by a plurality of induction welds formed between the thermoplastic layer and the thermoplastic resin.
22 . The water-proofing laminate of claim 21 , wherein an induction weld comprises three heat effected zones: a fastener plate zone, a fusion zone, and a self-healing hydraulic barrier zone; and wherein the fastener plate zone comprises a volume larger than the individual volumes of either the fusion zone or the self-healing hydraulic barrier zone.
23 . The water-proofing laminate of claim 22 , wherein the fastener plate zone is approximately coextensive with the volume of the thermoplastic resin.
24 . A method of preparing a water-proofing laminate comprising:
positioning a thermoplastic surface of a self-healing hydraulic barrier against a fastening plate secured to a hydraulic source; and then
inductively welding the thermoplastic surface and the fastening plate.
25 . The method of claim 24 , further comprising securing the fastening plate to the hydraulic source.
26 . The method of claim 25 , wherein the fastening plate is secured to the hydraulic source by passing a fixing member through the fastener plate and into the hydraulic source.
27 . The method of claim 26 , wherein the fixing member is selected from the group consisting of a concrete fastener, a screw, a drive pin, and a nail.
28 . The method of claim 24 further comprising
positioning a drainboard between the hydraulic source and the fastening plate; and then
securing the fastening plate to the hydraulic source by passing a fixing member selected from the group consisting of a concrete fastener, a screw, a drive pin, and a nail through the fastener plate and drainboard and into the hydraulic source.
29 . The method of claim 24 further comprising sealing a seam that comprises overlapping layers of the thermoplastic surface.
30 . The method of claim 24 further comprising providing a structural anchor through the self-healing hydraulic barrier.
31 . A method of preparing a water-proofing laminate comprising:
fixing a fastening plate to a hydraulic source by powder actuating or pneumatic actuating a fixing member through the fastener plate; and then
inductively welding a self-healing hydraulic barrier to the fastening plate.
32 .- 46 . (canceled)