A method of installing a trench for containing a cryogenic spill, including the step of constructing multiple precast concrete sections at a first location, each section preferably having a bottom wall and spaced apart side walls connected to and extending up from the bottom wall. Each section preferably has end portions that enable connection to another said concrete section. The method includes (at the first location) preparing multiple panels of polymeric concrete material by filling one or more molds with a slurry or liquid polymeric concrete material and after time allowing the material to cure and harden. The mold can have a cavity that is lined with a release material. At the first location, one or more of the panels can be adhered to the bottom wall and side walls of each concrete section preferably using an adhesive. After adhering of the panels to the concrete sections, the concrete sections can be transported from the first location to a second location that is remote from the first location. At the second location, the concrete sections are connected together using connections that preferably join one end portion of a concrete section to and end portion of another concrete section. An epoxy grout is preferably field applied to the connections at the second location.

A method of installing a trench for containing a cryogenic spill, including the step of constructing multiple precast concrete sections at a first location, each section preferably having a bottom wall and spaced apart side walls connected to and extending up from the bottom wall. Each section preferably has end portions that enable connection to another said concrete section. The method includes (at the first location) preparing multiple panels of polymeric concrete material by filling one or more molds with a slurry or liquid polymeric concrete material and after time allowing the material to cure and harden. The mold can have a cavity that is lined with a release material. At the first location, one or more of the panels can be adhered to the bottom wall and side walls of each concrete section preferably using an adhesive. After adhering of the panels to the concrete sections, the concrete sections can be transported from the first location to a second location that is remote from the first location. At the second location, the concrete sections are connected together using connections that preferably join one end portion of a concrete section to and end portion of another concrete section. An epoxy grout is preferably field applied to the connections at the second location.

A method for forming a geomembrane liner testable for leaks by securing adjacent panels together with the conductivity of the lower surface of an overlying panel broken along a line adjacent the panel overlapping edge, and the overlapping edges sealed along the line. A heat welder has slots for the overlapping panel edges, with a heated wedge between the slots and having a projection to break the conductivity of the overlying panel bottom surface as it passes the wedge. The slots merge to press the liner edges together to heat weld them along the line of broken conductivity as the welder is moved along the panel edges.

A method of installing a trench for containing a cryogenic spill, including the step of constructing multiple precast concrete sections at a first location, each section preferably having a bottom wall and spaced apart side walls connected to and extending up from the bottom wall. Each section preferably has end portions that enable connection to another said concrete section. The method includes (at the first location) preparing multiple panels of polymeric concrete material by filling one or more molds with a slurry or liquid polymeric concrete material and after time allowing the material to cure and harden. The mold can have a cavity that is lined with a release material. At the first location, one or more of the panels can be adhered to the bottom wall and side walls of each concrete section preferably using an adhesive. After adhering of the panels to the concrete sections, the concrete sections can be transported from the first location to a second location that is remote from the first location. At the second location, the concrete sections are connected together using connections that preferably join one end portion of a concrete section to and end portion of another concrete section. An epoxy grout is preferably field applied to the connections at the second location.

A method of installing a trench for containing a cryogenic spill, including the step of constructing multiple precast concrete sections at a first location, each section preferably having a bottom wall and spaced apart side walls connected to and extending up from the bottom wall. Each section preferably has end portions that enable connection to another said concrete section. The method includes (at the first location) preparing multiple panels of polymeric concrete material by filling one or more molds with a slurry or liquid polymeric concrete material and after time allowing the material to cure and harden. The mold can have a cavity that is lined with a release material. At the first location, one or more of the panels can be adhered to the bottom wall and side walls of each concrete section preferably using an adhesive. After adhering of the panels to the concrete sections, the concrete sections can be transported from the first location to a second location that is remote from the first location. At the second location, the concrete sections are connected together using connections that preferably join one end portion of a concrete section to and end portion of another concrete section. An epoxy grout is preferably field applied to the connections at the second location.

A ditch liner includes: a first corrugation having first and second angled sections, and a central section; and a second corrugation having first and second angled sections, and a central section. The first angled sections are adjacent to each other, the second angled sections are adjacent to each other, the central sections are adjacent to each other, a width of the first angled section of the first corrugation is different than a width of the first angled section of the second corrugation at a first location, a width of the second angled section of the first corrugation is different than a width of the second angled section of the second corrugation at a second location, and a width of the central section of the first corrugation is equal to a width of the central section of the second corrugation at a third location.

A ditch liner includes: a first corrugation having first and second angled sections, and a central section; and a second corrugation having first and second angled sections, and a central section. The first angled sections are adjacent to each other, the second angled sections are adjacent to each other, the central sections are adjacent to each other, a width of the first angled section of the first corrugation is different than a width of the first angled section of the second corrugation at a first location, a width of the second angled section of the first corrugation is different than a width of the second angled section of the second corrugation at a second location, and a width of the central section of the first corrugation is equal to a width of the central section of the second corrugation at a third location.

A method, a waterproof liner and waterproof panels for installations in basins and canals) both dry and with stationary and flowing water. The liner consists of a plurality of prefabricated panels, including at least one flexible waterproof membrane, made of geosynthetic material, provided with side anchor bands for anchoring to the ground and with side sealing flaps. The panels that are rolled up into rolls are sequentially unrolled and extended by fixing provisionally along at least one anchor band, by joining simultaneously the flaps of adjoining panels by means of an intermediate zip fastener. Subsequently, the individual panels are firmly anchored by friction to the bottom and/or to the banks of the basin or canal, by means of a permanent ballast. The individual panels can be removed and replaced by operating underwater, restoring the seal between panels of the entire waterproof liner.

A method, a waterproof liner and waterproof panels for installations in basins and canals) both dry and with stationary and flowing water. The liner consists of a plurality of prefabricated panels, including at least one flexible waterproof membrane, made of geosynthetic material, provided with side anchor bands for anchoring to the ground and with side sealing flaps. The panels that are rolled up into rolls are sequentially unrolled and extended by fixing provisionally along at least one anchor band, by joining simultaneously the flaps of adjoining panels by means of an intermediate zip fastener. Subsequently, the individual panels are firmly anchored by friction to the bottom and/or to the banks of the basin or canal, by means of a permanent ballast. The individual panels can be removed and replaced by operating underwater, restoring the seal between panels of the entire waterproof liner.

Exemplary embodiments are disclosed of liners, linings, and liquid containment vessels including the same. Also disclosed are exemplary method of providing liners and linings for liquid containment vessels, such as process tanks, immersion tanks, containment pits, gravity feed conduits for transferring or conveying liquid, etc. In an exemplary embodiment, a liner or lining is anchored to at least one structural component by at least one extrusion weld and at least one mechanical fastener. The mechanical fastener is coupled to the structural component. The extrusion weld is coupled to the mechanical fastener. The liner or lining may be anchored to a wide range of structural components, such as a frame, a framework, a frame member, a tank, a wall, a support member, a reinforcing member, an outer shell, a substrate (e.g., concrete, etc.) or sidewalls defining a pit or a gravity feed conduit, combinations thereof, other structures or components, etc.