In the present disclosure, a cement board is disclosed. The cement board comprises a core having a first surface and a second surface opposite the first surface and a binder including a pozzolan material and a water-resistant additive, wherein the water-resistant additive is present in an amount of less than 5 wt. % based on the weight of the pozzolan material.

A method of decreasing the water load needed to form a fibrous panel. The process includes admixing a mineral wool, a cellulose, and a binder to provide a pre-mixed slurry, admixing a mineral filler with water to provide a mineral filler slurry, admixing the pre-mixed slurry and the mineral filler slurry to form a dispersion, flowing the dispersion onto a foraminous support wire to provide a green board, dewatering the green board to form a dewatered green board and drying the dewatered green board to provide a fibrous panel.

A method of decreasing the water load needed to form a fibrous panel. The process includes admixing a mineral wool, a cellulose, and a binder to provide a pre-mixed slurry, admixing a mineral filler with water to provide a mineral filler slurry, admixing the pre-mixed slurry and the mineral filler slurry to form a dispersion, flowing the dispersion onto a foraminous support wire to provide a green board, dewatering the green board to form a dewatered green board and drying the dewatered green board to provide a fibrous panel.

The present invention relates to a slim vermiculite board for construction finishing comprising, to 100 parts by weight of fired vermiculite, 2.5-3.5 parts by weight of an additive and 100-120 parts by weight of a binder. The slim vermiculite board can help create a beautiful and luxurious interior by means of products having the natural patterns and diverse colors of vermiculite, does not produce construction waste and can be used as an agricultural soil conditioner. Also, the slim vermiculite board is light and easy to install, does not cause efflorescence, is deformation-free and eco-friendly, and has excellent deodorizing, antibacterial and fire-resistant properties and an excellent sound absorption coefficient.

The present invention relates to a slim vermiculite board for construction finishing comprising, to 100 parts by weight of fired vermiculite, 2.5-3.5 parts by weight of an additive and 100-120 parts by weight of a binder. The slim vermiculite board can help create a beautiful and luxurious interior by means of products having the natural patterns and diverse colors of vermiculite, does not produce construction waste and can be used as an agricultural soil conditioner. Also, the slim vermiculite board is light and easy to install, does not cause efflorescence, is deformation-free and eco-friendly, and has excellent deodorizing, antibacterial and fire-resistant properties and an excellent sound absorption coefficient.

A disclosed structural and light concrete includes a binding matrix and light aggregates. The binding matrix has a volume fraction from approximately 20% to approximately 50% of a concrete total volume and include: (1) a Portland Type I, II, III, IV or V cement or a mixture thereof, in a dose of at least 100 kg/m3 of concrete; (2) supplementary cementitious materials in a proportion of up to 4 times by volume of Portland cement; (3) a water component having a volume fraction relative to cement and supplementary cementitious materials in a range from approximately 0.2 to approximately 0.7; and (4) a maximum volume fraction of calcium hydroxide (CH) of approximately 10%. The light aggregates correspond to a volume fraction a range from approximately 30% to approximately 80% of the total concrete volume. Properties include increased compression resistance, decreased density, lower thermal conductivity and higher quotient of density resistance.

A disclosed structural and light concrete includes a binding matrix and light aggregates. The binding matrix has a volume fraction from approximately 20% to approximately 50% of a concrete total volume and include: (1) a Portland Type I, II, III, IV or V cement or a mixture thereof, in a dose of at least 100 kg/m3 of concrete; (2) supplementary cementitious materials in a proportion of up to 4 times by volume of Portland cement; (3) a water component having a volume fraction relative to cement and supplementary cementitious materials in a range from approximately 0.2 to approximately 0.7; and (4) a maximum volume fraction of calcium hydroxide (CH) of approximately 10%. The light aggregates correspond to a volume fraction a range from approximately 30% to approximately 80% of the total concrete volume. Properties include increased compression resistance, decreased density, lower thermal conductivity and higher quotient of density resistance.

Novel fire-proof thermal-insulation coating materials are disclosed formed primarily by mixing granulated Rockwood with liquid vermiculite (i.e., expanded vermiculite mixed with water). Also disclosed are methods for producing the coating materials and for applying the novel coating materials and additional layers to selected surfaces which can reach excessive temperatures (e.g., above 135? C.) so as to limit the maximum temperature of the outer exposed surfaces of the coating layers.

Novel fire-proof thermal-insulation coating materials are disclosed formed primarily by mixing granulated Rockwood with liquid vermiculite (i.e., expanded vermiculite mixed with water). Also disclosed are methods for producing the coating materials and for applying the novel coating materials and additional layers to selected surfaces which can reach excessive temperatures (e.g., above 135? C.) so as to limit the maximum temperature of the outer exposed surfaces of the coating layers.

A door for attenuating sound includes at least one core disposed between a front surface and a back surface. The at least one core includes a composition comprising vermiculite, for example, expanded vermiculite, and an inorganic bonding agent. Such a composition for the core has a density of at least 600 Kg/m.sup.3. The door has at least a sound transmission class (STC) rating or an outdoors/indoors transmission coefficient (OITC) being higher than 30.