The invention comprises a concrete form. The concrete form comprises a first mold for concrete and a second mold for concrete, the first and second molds being in thermal communication with each other. The concrete form also comprises thermal insulating material substantially surrounding the first and second molds but not between the first and second molds. A method of using the concrete form is also disclosed.

A composite component and a plated polymer component are disclosed. The composite component may comprise a body portion formed from an organic matrix composite, a first metal coating applied to a surface of the body portion, and an outer metal layer on the first metal coating that is erosion-resistant. The plated polymer component may comprise a polymer substrate, a metal plating layer applied to a surface of the polymer substrate, and at least one selectively thickened region in the metal plating layer. The at least one selectively thickened region may assist in protecting the plated polymer component against wear and/or erosion.

An inorganic shell is ball-shaped and hollow, and includes silica and crystalline inorganic powder sintered together. A resin composition has the inorganic shells and the resin composition has certain dieletric characteristics. A method for making the inorganic shell is also provided.

A mold for a concrete bench support structure including a closed base, a continuous wall projecting up from the circumference of the base, and structure attached to the wall that stiffens the wall.

The invention comprises a concrete form. The concrete form comprises a first mold for concrete and a second mold for concrete, the first and second molds being in thermal communication with each other. The concrete form also comprises thermal insulating material substantially surrounding the first and second molds but not between the first and second molds. A method of using the concrete form is also disclosed.

The invention comprises a concrete form. The concrete form comprises a first mold for concrete and a second mold for concrete, the first and second molds being in thermal communication with each other. The concrete form also comprises thermal insulating material substantially surrounding the first and second molds but not between the first and second molds. A method of using the concrete form is also disclosed.

In exemplary implementations of this invention, a nozzle sprays foam, layer by layer, to fabricate a fabricated object according to a CAD model, and a subtractive fabrication tool removes material from the fabricated object according to a CAD model. The fabricated object comprises a mold or an interior form. The foam may be low-density, high strength and fast-curing. The foam may be used for large-scale 3D printing. For example, the foam may be used to 3D print molds for walls of homes. The foam molds may be left in place, after casting concrete in the molds, to serve as insulation. Or for example, the foam may be used to 3D print on site an internal form for a large wind turbine blade. The wind turbine blade may then be produced on site by depositing fiberglass on the outside of the internal form.

The invention relates to a biodegradable material made of biological components, comprising 10 to 60 wt. % of a protein adhesive (1), which is made of at least one protein, and 2 to 50 wt. % of natural fibers (4). Furthermore, 2 to 15 wt. % of at least one hygroscopic mineral (7), 10 to 55 wt. % of water (2), and 0 to 50 wt. % of an additive component (5) are provided in the material (10).

According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.

According to some aspects, a method is provided of casting an object from a mold, the method comprising obtaining a mold comprising a hollow shell of rigid material, the material comprising a thermoset polymer having a plurality of pores formed therein, providing a metal and/or ceramic slurry into an interior of the mold, exposing at least part of the mold to a low pressure environment so that a net flow of gas is produced from the interior of the mold into the low pressure environment. According to some aspects, a method of forming a porous mold is provided. According to some aspects, a photocurable liquid composition is provided, comprising a liquid photopolymer resin, particles of a solid material, in an amount between 30% and 60% by volume of the composition, and a water-soluble liquid.