The invention comprises a method of curing concrete. The method comprises placing a concrete cylinder in an insulated container having a sufficient quantity of water therein so that the concrete cylinder is submerged in and surrounded by the water and selectively adding heat to the quantity of water in an insulated container, so that the temperature of the quantity of water follows a predetermined temperature profile. Apparatus for performing the method is also disclosed.

A method of manufacturing unitized formed mineral-based construction materials includes providing starting materials that include an aggregate, a cementing agent and water. The starting materials are mixed to achieve a mixture of the starting materials which is then placed into a form and cured to allow the mixture of starting materials to become a solidified unit. The solidified unit of the mixture of starting materials is defined by a minimum dimension of thickness, length, and/or diameter. The solidified unit of the mixture of starting materials is placed into a kiln which is then heated to a processing temperature of between about 1000 C. and about 1350 C. and maintained for a period of time of between about 10 minutes and about 60 minutes per centimeter of the minimum dimension of the solidified unit of the mixture of starting materials.

A process for producing a component from a curable material, a new layer of the material being printed in periodically recurring steps in a 3D printing process onto a layer located thereunder so as to have lower reinforcing elements which protrude above the top of this new layer, and also relates to a component produced by a corresponding process. Known processes and components do not allow reinforcement over a large surface area. The object of designing a process in such a way that the reinforcement thereof withstands high loads is achieved by providing that, after each layer has been printed, upper reinforcing elements are connected to the lower reinforcing elements so as to extend said lower reinforcing elements and so as to form the lower reinforcing elements of the subsequent layer.

The invention provides a curing system that is useful for curing materials that consume carbon dioxide as a reagent. The system has a curing chamber that contains the material to be cured and a gas that contains carbon dioxide. The system includes apparatus that can deliver carbon dioxide to displace ambient air upon loading the system, that can provide carbon dioxide as it is needed and as it is consumed, that can control carbon dioxide concentration, temperature and humidity in the curing chamber during the curing cycle and that can record and display to a user the variables that occur during the curing process. A method of curing a material which requires CO.sub.2 as a curing reagent is also described.

A method for moulding a part, including the following steps: placing at least one pre-stressing device in a first element; placing the first element facing a second element; pre-stressing the at least one pre-stressing device; introducing ultra-high performance fibre concrete into the reception volume; controlling gradual modification of one of the elements; and removing the tubular element from the mould.

A permeable pavement and cured fiber composition and a related method are provided. The permeable pavement composition includes a quantity of pavement material, and a quantity of cured carbon fiber composite material (CCFCM) configured to be added to the pavement material to produce a reinforced composition having improved characteristics. An example of pavement material includes a pervious concrete material. The method includes providing a quantity of pavement material, and adding a quantity of cured carbon fiber composite material to the pavement material to produce a reinforced composition having improved characteristics.

The invention provides novel articles of composite materials having hollow interior channels or passageways, or otherwise being hollowed out, and formulations and methods for their manufacture and uses. These hollow core objects are suitable for a variety of applications in construction, pavements and landscaping, and infrastructure.

The invention comprises a flying table concrete form. The flying table concrete form comprises a concrete forming deck comprising a first concrete forming panel having a first primary surface adapted for forming and contacting plastic concrete and a second primary surface opposite the first primary surface, a layer of insulating material contacting and substantially covering the second primary surface of the first concrete forming panel, and a second panel contacting and substantially covering the layer of insulating material. The flying table concrete form also comprises a plurality of deck support members extending transversely with respect to the second panel, wherein the first concrete forming panel defines a plane and wherein no portion of the deck support members are in the plane defined by the first concrete forming panel. A method of using the flying table concrete form is also disclosed.

There is provided a method of manufacturing a concrete product. A composition including a slag-based binder, an aggregate, water and an additive selected from the group consisting of calcium chloride, ground eggshells, sodium carbonate, sodium bicarbonate, sodium hydroxide, fine calcium carbonate, calcium oxide, borax, ammonium chloride and combinations thereof, is mixed to obtain a concrete mixture. The concrete mixture is formed into a desired shape to obtain a formed concrete, the formed concrete having a first water-to-binder ratio. The formed concrete is dried to obtain a dried concrete having a second water-to-binder ratio less than the first water-to-binder ratio. The concrete mixture is carbon cured to obtain the concrete product.

A peelable protective composite for flooring is made of an open mesh fabric embedded in a polymeric film having a tensile strength of at least 5 megapascals, an elongation of more than 1,000 percent, and adhesive strength of no more than about one megapascal. The protective composite can also be used to enhance curing of freshly poured concrete.