The heat-insulating property evaluation and application of high permeability-high strength concrete materials

The high permeability-high strength concrete belongs to the typical of porous materials. It is mainly used in underground engineering for cold area, it can act the role of heat preservation, also to be the bailing and buffer layer. When the high permeability-high strength concrete materials was used in the cavity for separate lining to a reality engineering in northern Tibet, it was shown that the method could protect the around permafrost well than unfilled engineering. It can achieve the requirements to be the heat insulation material.