Disclosed is a method and system for blending a foam modifier with foaming agent on-line, e.g., as may be particularly useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C.sub.6-C.sub.16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process.

Disclosed is a method and system for blending a foam modifier with foaming agent on-line, e.g., as may be particularly useful for gypsum or cement slurries. The foam modifier comprises a fatty alcohol that is added to a gypsum or cement slurry that includes foaming agent, such as an alkyl sulfate surfactant. The fatty alcohol can be a C.sub.6-C.sub.16 fatty alcohol in some embodiments. The use of such a foam modifier can be used, for example, to stabilize the foam, reduce waste of foaming agent, improve void size control in the final product, and improve the gypsum board manufacturing process.

Cellular concrete is formed from a cement-based wet mix slurry with a foam entrained into the wet mix. The foam is created using a foaming agent, mixed with water and air using a foam generator. The wet mix is mixed with the foam to form the cellular concrete wet mix. Poor component metering and blending practices in the current state of the art limits the performance capabilities of existing cellular concrete placements. The presently disclosed technology addresses this with a cellular concrete mixing system comprising a dry mix hopper to store a quantity of dry mix, a mixing tank to blend the dry mix and water together to form a wet mix, a holding tank to store a quantity of the wet mix, a foam generator to generate foam from air, water, and foam concentrate, and a blend controller to control operation of the overall mixing system.

Cellular concrete is formed from a cement-based wet mix slurry with a foam entrained into the wet mix. The foam is created using a foaming agent, mixed with water and air using a foam generator. The wet mix is mixed with the foam to form the cellular concrete wet mix. Poor component metering and blending practices in the current state of the art limits the performance capabilities of existing cellular concrete placements. The presently disclosed technology addresses this with a cellular concrete mixing system comprising a dry mix hopper to store a quantity of dry mix, a mixing tank to blend the dry mix and water together to form a wet mix, a holding tank to store a quantity of the wet mix, a foam generator to generate foam from air, water, and foam concentrate, and a blend controller to control operation of the overall mixing system.

An energy-saving building system using a porous silicate material for thermal insulation, comprises a foundation, a retaining wall body, and a roof system. The foundation comprises a ground ring beam and columns, and a porous silicate thermal insulation material is cast around the ground ring beam and the columns; the porous silicate thermal insulation material is composed of an organic lightweight aggregate and a lightweight inorganic matrix, and the lightweight inorganic matrix is provided thereon with a plurality of micropores; the retaining wall body comprises an outer wall disposed on the ground ring beam, the outer wall comprises an outer side support body, an inner side support body, and the porous silicate thermal insulation material cast between the inner and outer side support bodies, and the outer side support body and the inner side support body are connected therebetween by means of a heat insulating connection member.

An energy-saving building system using a porous silicate material for thermal insulation, comprises a foundation, a retaining wall body, and a roof system. The foundation comprises a ground ring beam and columns, and a porous silicate thermal insulation material is cast around the ground ring beam and the columns; the porous silicate thermal insulation material is composed of an organic lightweight aggregate and a lightweight inorganic matrix, and the lightweight inorganic matrix is provided thereon with a plurality of micropores; the retaining wall body comprises an outer wall disposed on the ground ring beam, the outer wall comprises an outer side support body, an inner side support body, and the porous silicate thermal insulation material cast between the inner and outer side support bodies, and the outer side support body and the inner side support body are connected therebetween by means of a heat insulating connection member.

A material delivery apparatus for delivering foam into a mixer of a ready-mix truck comprising an elongated bar, a support arm, a guide tube and a delivery tube is disclosed. There is a foam tube having one end mounted to the delivery tube and another end mounted to a foam generator. The delivery tube slides within the guide tube. There is a cable mounted to the delivery tube and to a motor reel on an opposite end. Included is a control panel communicatively coupled to the motor reel and the foam generator. The mixer of a ready-mix truck is aligned underneath the delivery tube. The controller is operated to control volume and rate at which foam is to be delivered by the foam generator. The delivery tube is positioned to accurately delivery the foam in the mixer to mix the foam with concrete to produce foam concrete.

A material delivery apparatus for delivering foam into a mixer of a ready-mix truck comprising an elongated bar, a support arm, a guide tube and a delivery tube is disclosed. There is a foam tube having one end mounted to the delivery tube and another end mounted to a foam generator. The delivery tube slides within the guide tube. There is a cable mounted to the delivery tube and to a motor reel on an opposite end. Included is a control panel communicatively coupled to the motor reel and the foam generator. The mixer of a ready-mix truck is aligned underneath the delivery tube. The controller is operated to control volume and rate at which foam is to be delivered by the foam generator. The delivery tube is positioned to accurately delivery the foam in the mixer to mix the foam with concrete to produce foam concrete.

The present invention relates to a gypsum composition comprising recycled gypsum and a foam former comprising at least one alpha-sulfo fatty acid disalt, to a process for production thereof and to an article comprising the gypsum composition of the invention. The present invention further relates to the use of a foam former comprising at least one alpha-sulfo fatty acid disalt for reducing the wet density of an aqueous gypsum composition having a recycled gypsum content of at least 0.5% by weight.

The present invention relates to a gypsum composition comprising recycled gypsum and a foam former comprising at least one alpha-sulfo fatty acid disalt, to a process for production thereof and to an article comprising the gypsum composition of the invention. The present invention further relates to the use of a foam former comprising at least one alpha-sulfo fatty acid disalt for reducing the wet density of an aqueous gypsum composition having a recycled gypsum content of at least 0.5% by weight.