Abstract: A building and construction material and method of making the material utilizes water with cement which are mixed together and followed by mixing with a mineral filler material such as sand or gravel to produce concrete having micropores of about 0.01 to about 5.mu. in diameter. By eliminating from the mineral filler material all fine grains of less than 0.2 mm, it has been found that the strength of the concrete is improved and the amount of shrinkage is reduced.

Abstract: In order to be able to produce formed elements or building elements with a significantly increased strength with a building material or structural material, it is suggested to provide the material with a largely uniform fine pore structure or a microcellular structure. These fine pores preferably have a diameter in the range of approx. 0.01.mu. to approx. 5.mu. and are self-contained. The material contains a reactive binding agent or a reactive matrix material, which can be a cement/water mixture or also a synthetic resin, for example polyurethane, epoxy resin, etc.

Abstract: Composite panels that include a metal skeleton of two superposed metal plates or sheets having groups of protruding bridge-shaped elements that extend into the interspace between the plates or sheets and overlap in a manner to form one or more elongated cage-like columns; a coherent matrix material made of a flowable or pourable mineral and/or organic matrix precursor is provided to substantially fill the interspace to form a substantially rigid compound structure of the panel constituents due to the plate-interlocking function of the cage-like columns. The panels can be flat or curved and are suitable as structural materials, notably as load supporting walls for buildings. Methods for producing such composite panels in a batchwise or continuous operation are disclosed.

Abstract: Composite panels that include a metal skeleton of two superposed metal plates or sheets having groups of protruding bridge-shaped elements that extend into the interspace between the plates or sheets and overlap in a manner to form one or more elongated cage-like columns; a coherent matrix material made of a flowable or pourable mineral and/or organic matrix precursor is provided to substantially fill the interspace to form a substantially rigid compound structure of the panel constituents due to the plate-interlocking function of the cage-like columns. The panels can be flat or curved and are suitable as structural materials, notably as load supporting walls for buildings. Methods for producing such composite panels in a batchwise or continuous operation are disclosed.