Scientific and technical goal of project "High-strength lightweight concrete" is creation of technology of high-quality building materials to increase efficiency of building and decreasing the cost of the specific area. Main task to achieve this goal is formulated: develope technology of new kind of concrete multifunctionaldestinationwitha universal set ofperformance properties.
Improving the quality of concrete as a most popular building material is a global trend which aimed to combine the positive attributes of light and heavy concretes. That is decreasing the average density and increasing the strength of concrete can to provide structural and heat insulating properties of these materials at the same time. But reduction the density of concrete less than 1800 kg/m3 leads to significant loss of strength and bearing capacity all in all.
Authors of this project developed technology of energy-efficient high-strength lightweight concrete (HSLWC) which has average density 1300-1500 kg/m3 and class of strength more than B45. Our concrete is almosttwice lighter and warmer than traditional heavy concrete, but it has the same high strength and freeze-thaw resistance (more than F300). Such properties are not possible for cellular concrete which are used today.
The high-strength lightweight concrete is fine-grained concrete which contains microscale spherical particles of filler. These microspheres together with special components of the cement-mineral composition and peculiar modifiers allow to form the dense and strong structure of the concrete with intense closed porosity at the same time.
The developed conrete is classified as material for construction with high operational properties. It can be used for building of multi-storey and high-rise buildings, railway and automobile bridges, overpasses, junction, manufacturing of big-span reinforced concrete products (girders, beams, crossbars, etc.) and other special difficult building objects.
Application of the high-strength lightweight concrete for construction allows:
Microphoto of HSLWC structure
Microtomography of HSLWC structure
Laboratory samples of HSLWC
Industrial sample of HSLWC
Meeting with the Mayor of Moscow
State Duma Deputy has rated our development