Disclosed is a sand aerated concrete panel pre-embedded with a wire box and a wire conduit and its preparation method. The concrete panel includes a sand aerated concrete panel, a steel bar mesh cage, a wire box and a wire conduit. The steel bar mesh cage includes a plurality of longitudinal main steel bars, a plurality of transverse auxiliary steel bars and a plurality of connecting iron pieces; the wire box and the wire conduit are fixed on the steel bar mesh cage; and the steel bar mesh cage, the wire box and the wire conduit are poured in the sand aerated concrete panel. The disclosure solves the problems of complicated procedures, high cost, environmental pollution caused by dust and noise in the prior art, avoids the potential quality hazards of the panels and wall structures caused by on-site slotting, reduces labor force, intensity and cost.

Disclosed is a sand aerated concrete panel pre-embedded with a wire box and a wire conduit and its preparation method. The concrete panel includes a sand aerated concrete panel, a steel bar mesh cage, a wire box and a wire conduit. The steel bar mesh cage includes a plurality of longitudinal main steel bars, a plurality of transverse auxiliary steel bars and a plurality of connecting iron pieces; the wire box and the wire conduit are fixed on the steel bar mesh cage; and the steel bar mesh cage, the wire box and the wire conduit are poured in the sand aerated concrete panel. The disclosure solves the problems of complicated procedures, high cost, environmental pollution caused by dust and noise in the prior art, avoids the potential quality hazards of the panels and wall structures caused by on-site slotting, reduces labor force, intensity and cost.

Macroporous cement compositions, methods of making the same, and methods of using the same, are described.

Macroporous cement compositions, methods of making the same, and methods of using the same, are described.

A lightweight thermal insulating cement-based material is formed from a mixture that includes cement, water and a foaming agent. The foaming agent can be an aluminum powder or a surfactant. The insulating material has a maximum use temperature of about 900 degrees Celsius or more.

A lightweight thermal insulating cement-based material is formed from a mixture that includes cement, water and a foaming agent. The foaming agent can be an aluminum powder or a surfactant. The insulating material has a maximum use temperature of about 900 degrees Celsius or more.

A lightweight thermal insulating cement-based material is formed from a mixture that includes cement, water and a foaming agent. The foaming agent can be an aluminum powder or a surfactant. The insulating material has a maximum use temperature of about 900 degrees Celsius or more.

A construction material mixture contains a dry mass of 10 to 98 wt. % carbon and 2 to 70 wt. % binding agent. The construction material mixture further comprises 1 to 80 wt. % loose particles, wherein the surface of the loose particles is at least partially coated with an electrically conductive material.

A construction material mixture contains a dry mass of 10 to 98 wt. % carbon and 2 to 70 wt. % binding agent. The construction material mixture further comprises 1 to 80 wt. % loose particles, wherein the surface of the loose particles is at least partially coated with an electrically conductive material.

Disclosed is a construction material composition including a matrix predominantly containing an aluminum silicate compound, such as a metakaolin, and an alkaline activation solution. The composition is contains less than 10 wt. % cement or clinker and in that the metakaolin is a metakaolin obtained via flash calcination. The reaction between the components is carried out at a temperature less than 30 C. The method for manufacturing the construction material includes mixing the composition with various elements such as granulates, plant fibers, unfired clay, and expanding agents. It is particularly of use in producing floor, wall, or roof coating elements, prefabricated construction elements, or insulation, adhesive, or inorganic sealant modules.