Embodiments of the present disclosure generally relate to methods and materials for fabricating building materials and other components from coal. More specifically, embodiments of the present disclosure relate to materials and other components, such as char clay plaster, char brick, and foam glass fabricated from coal, and to methods of forming such materials. In an embodiment is provided a building material fabrication method. The method includes mixing an organic solvent with coal, under solvent extraction conditions, to form a coal extraction residue, and heating the coal extraction residue under pyrolysis conditions to form a pyrolysis char, the pyrolysis conditions comprising a temperature greater than about 500? C. The method further includes mixing the pyrolysis char with water and with one or more of clay, cement, or sand to create a mixture, and molding and curing the mixture to form a building material. Pyrolysis char-containing materials are also disclosed.

Embodiments of the present disclosure generally relate to methods and materials for fabricating building materials and other components from coal. More specifically, embodiments of the present disclosure relate to materials and other components, such as char clay plaster, char brick, and foam glass fabricated from coal, and to methods of forming such materials. In an embodiment is provided a building material fabrication method. The method includes mixing an organic solvent with coal, under solvent extraction conditions, to form a coal extraction residue, and heating the coal extraction residue under pyrolysis conditions to form a pyrolysis char, the pyrolysis conditions comprising a temperature greater than about 500? C. The method further includes mixing the pyrolysis char with water and with one or more of clay, cement, or sand to create a mixture, and molding and curing the mixture to form a building material. Pyrolysis char-containing materials are also disclosed.

Embodiments of the present disclosure generally relate to methods and materials for fabricating building materials and other components from coal. More specifically, embodiments of the present disclosure relate to materials and other components, such as char clay plaster, char brick, and foam glass fabricated from coal, and to methods of forming such materials. In an embodiment is provided a building material fabrication method. The method includes mixing an organic solvent with coal, under solvent extraction conditions, to form a coal extraction residue, and heating the coal extraction residue under pyrolysis conditions to form a pyrolysis char, the pyrolysis conditions comprising a temperature greater than about 500? C. The method further includes mixing the pyrolysis char with water and with one or more of clay, cement, or sand to create a mixture, and molding and curing the mixture to form a building material. Pyrolysis char-containing materials are also disclosed.

A filtering well has a body defining an inner volume, the body having a mineral membrane made of a pervious concrete composition in order to filter water flow into the inner volume of the body. An outlet conduit is in fluid communication with the inner volume for discharging water therefrom. The outlet conduit is formed in the mineral membrane of the body. Other aspects are also disclosed.

A filtering well has a body defining an inner volume, the body having a mineral membrane made of a pervious concrete composition in order to filter water flow into the inner volume of the body. An outlet conduit is in fluid communication with the inner volume for discharging water therefrom. The outlet conduit is formed in the mineral membrane of the body. Other aspects are also disclosed.

The present disclosure concerns expandable silica particles having a coating comprising talc powder and kaolin powder provided on the outer surface of the expandable silica particle and expandable and expanded silica particles comprising silica fume and/or ultrafine quartz silica sand beneath the surface of the particles. Methods for producing expandable and expanded silica particles are disclosed, including a method using a vibration plate and a furnace having a vibration plate for carrying out that method. The expanded silica particles have high compressive strength, substantially uniform cell size and distribution, low water absorption, and low porosity on the outer surface. They are useful as a filler in matrix materials, like concrete or epoxy, as insulation material with various binder materials, and as water filtration medium.

The present invention relates to bituminous coated materials including a granular fraction and a binder, characterised in that in the granular fraction all or part of the elements are selected from among lightweight, non-absorbent aggregates with a density of less than 1.6 t/m.sup.3 and a water absorption coefficient of less than 15%. The invention also relates to the use of light, non-absorbent aggregates with a density of less than 1.6 t/m.sup.3 and a water absorption coefficient of 3% to 15% for the production of light bituminous coated materials. The invention further relates to pavements obtained by applying at least one layer of the coated materials according to the invention and to a method for applying a surface course to a surface raised above the ground which includes a step of applying coated materials according to the invention.

The present invention relates to bituminous coated materials including a granular fraction and a binder, characterised in that in the granular fraction all or part of the elements are selected from among lightweight, non-absorbent aggregates with a density of less than 1.6 t/m.sup.3 and a water absorption coefficient of less than 15%. The invention also relates to the use of light, non-absorbent aggregates with a density of less than 1.6 t/m.sup.3 and a water absorption coefficient of 3% to 15% for the production of light bituminous coated materials. The invention further relates to pavements obtained by applying at least one layer of the coated materials according to the invention and to a method for applying a surface course to a surface raised above the ground which includes a step of applying coated materials according to the invention.

A composite product includes gypsum in an amount of 70 to 90% by weight, fibers in an amount of 1.5 to 26% by weight substantially homogeneously distributed through the composite, and a rheology-modifying agent in an amount of 0.5 to 6% by weight. The composite is caused or allowed to cure to form a cured composite. The cured composite is a fire resistant component used in a fire-rated door core, a fire-rated door or a fire-rated building panel. The fire resistant component may include a building panel, a door panel, a door core, a door rail, a door stile, a door lock block, a door border, or a door insert.

A composite product includes gypsum in an amount of 70 to 90% by weight, fibers in an amount of 1.5 to 26% by weight substantially homogeneously distributed through the composite, and a rheology-modifying agent in an amount of 0.5 to 6% by weight. The composite is caused or allowed to cure to form a cured composite. The cured composite is a fire resistant component used in a fire-rated door core, a fire-rated door or a fire-rated building panel. The fire resistant component may include a building panel, a door panel, a door core, a door rail, a door stile, a door lock block, a door border, or a door insert.