A cement composition and a process are provided for recycling a waste material by using the waste in the manufacture of Portland cement. The process generally comprises mixing a first quantity of the waste material thoroughly with a second quantity of a solid material so as to produce a non-compacted additive. The non-compacted additive is applied to cement clinker, wherein the additive is utilized as a substitute for virgin ingredients normally used in the manufacture of the Portland cement. In an embodiment, the non-compacted additive comprises a consistency of wet earth which is readily pliable with the second quantity by weight not exceeding three times the first quantity by weight. The cement clinker is then pulverized so as to distribute the additive within the resulting Portland cement.

A filler for production of cement-bound shaped bodies, comprising a material group mixture of comminuted and sorted waste materials, conditioned with chemical reagents/compounds in the presence of water, wherein the material group mixture is composed of comminuted and sorted waste materials, selected from the following material groups: PPK: paper, paperboard, cardboard plastics inert material textiles wood
which are mixed according with a mass-related material group vector and then comminuted.

A method of producing refractory brick includes heating a spent Claus catalyst, reducing a particle size of the catalyst, dry mixing the catalyst with cement to form a dry mixture, adding water to the dry mixture to form a castable mixture, casting the castable mixture in a mold, curing the mold, and drying the mold to form the refractory brick.

A method of producing refractory brick includes heating a spent Claus catalyst, reducing a particle size of the catalyst, dry mixing the catalyst with cement to form a dry mixture, adding water to the dry mixture to form a castable mixture, casting the castable mixture in a mold, curing the mold, and drying the mold to form the refractory brick.

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.

A method for preparing lightweight clay-based aggregates, the aggregates being suitable for use notably in civil engineering works, in particular road uses, and construction. The method for preparing lightweight aggregates includes at least the following steps: a) a step of granulating a clay-based mixture, so as to obtain aggregates, b) a step of drying the aggregates obtained, so as to obtain dried aggregates, c) a step of heat treatment of the dried aggregates, this step having two successive substeps: i) a first substep of heat treatment carried out under a reducing atmosphere at a temperature Ti of between 900 C. and 1200 C. approximately, ii) a second substep of heat treatment carried out under an oxidizing atmosphere at a temperature T2 of between 1050 C. and 1300 C. approximately, and d) a step of cooling the aggregates.

A method for preparing lightweight clay-based aggregates, the aggregates being suitable for use notably in civil engineering works, in particular road uses, and construction. The method for preparing lightweight aggregates includes at least the following steps: a) a step of granulating a clay-based mixture, so as to obtain aggregates, b) a step of drying the aggregates obtained, so as to obtain dried aggregates, c) a step of heat treatment of the dried aggregates, this step having two successive substeps: i) a first substep of heat treatment carried out under a reducing atmosphere at a temperature Ti of between 900 C. and 1200 C. approximately, ii) a second substep of heat treatment carried out under an oxidizing atmosphere at a temperature T2 of between 1050 C. and 1300 C. approximately, and d) a step of cooling the aggregates.

Described herein are processes for the activation of glass pozzolan as well as the activated product. Methods of using the activated product are also described.

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%.