A concrete product set by pouring a concrete slurry includes a concrete mixture, an aluminum-coated colloidal silica admixture, and optionally, at least one reinforcing fiber selected from the group of fibers. As the poured concrete slurry cures, the poured slurry hardens into a composite material product, and the concrete product defines capillary structures that at least in part fill with aluminum-coated silica and lime. Optional graphene oxide may be used in the concrete slurry, in which embodiment the surrounding aggregate and cement is embedded with graphene oxide flakes. A process for placing a jointless and/or fiberless slab made from the concrete product includes preparing a concrete slurry, pouring the concrete slurry onto substrate, and allowing the concrete slurry to cure.

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.

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.

Disclosed is a composite gypsum board comprising a set gypsum core disposed between face (e.g., Manila) and back (e.g., Newsline) cover sheets. The set gypsum core is formed from a core slurry comprising stucco, water, and optional additives, such as foaming agent, migrating starch, accelerator, retarder, dispersant, etc. A dense layer formed from a dense layer slurry comprising stucco, water, fiber (e.g., paper fiber), and optionally, strength-enhancing starch, is disposed between the core and the face paper. The dense layer slurry contains a greater concentration of fiber, and optionally, strength-enhancing starch, than the core slurry, but the concentration of one or more other additives (e.g., accelerator, retarder, dispersant, or combinations thereof) is lower or the same in the dense slurry as compared with the core slurry. Also disclosed is a method of making board using one board mixer. In embodiments, paper fiber is added to water to form a suspension. The suspension is introduced, while in a non-laminar state, into the dense slurry. Further disclosed is apparatus, such as an extractor and an additive injection system, which can be a part of a cementitious slurry mixing and dispensing assembly.

A reinforced, permeable pavement composition, including a first quantity of a porous asphalt material, and a second quantity of cured carbon fiber composite material (CCFCM) particles, the CCFCM particles can have a particle size smaller than 3.35 mm and the composition can have a porosity between 15% and 35%.

A reinforced, permeable pavement composition, including a first quantity of a porous asphalt material, and a second quantity of cured carbon fiber composite material (CCFCM) particles, the CCFCM particles can have a particle size smaller than 3.35 mm and the composition can have a porosity between 15% and 35%.

A system for dispensing a metered amount of a fiber additive into a concrete mixing system. The system includes a dispensing hopper to hold the fiber additive and to selectively dispense the fiber additive. A discharge outlet is included having an adjustable area formed between a fixed surface and a movable surface. Fiber additive exiting the dispensing hopper passes between the fixed surface and the movable surface. A conveyor and dosing wheel are the fixed and movable surfaces and dispense the fiber additive through the discharge outlet. A sensor senses an amount of fiber additive within the system and a controller controls the amount of fiber additive dispensed from the system. The specific amount is controlled by altering either a speed of the conveyor or dosing wheel or the distance between the fixed surface and the movable surface. As any of the above decrease, fiber additive discharge decreases.

A system for dispensing a metered amount of a fiber additive into a concrete mixing system. The system includes a dispensing hopper to hold the fiber additive and to selectively dispense the fiber additive. A discharge outlet is included having an adjustable area formed between a fixed surface and a movable surface. Fiber additive exiting the dispensing hopper passes between the fixed surface and the movable surface. A conveyor and dosing wheel are the fixed and movable surfaces and dispense the fiber additive through the discharge outlet. A sensor senses an amount of fiber additive within the system and a controller controls the amount of fiber additive dispensed from the system. The specific amount is controlled by altering either a speed of the conveyor or dosing wheel or the distance between the fixed surface and the movable surface. As any of the above decrease, fiber additive discharge decreases.