Self-bonding type waterproof sheet with fresh concrete substrate for preventing radon gas

摘要

The present invention relates to a concrete spraying-integrated sheet waterproofing material for blocking radon, the object of which is provided with a central base layer capable of adsorbing and blocking radon gas, the water-reactive modified asphalt layer and rubberization on both sides of the central base layer Asphalt layer is formed and integrated with the concrete surface which is poured without separate heating tools or adhesives, and it is cohesive with the concrete pile or the discarded concrete layer in place according to the construction site and copes with the partial coagulation of the discarded concrete. It is to provide a sheet waterproofing material that is prevented from falling out. The configuration of the present invention comprises a central base layer (1) comprising an activated carbon adsorbing radon gas and aluminum metal foil to block; A water-reactive modified asphalt layer (2) which is formed on one side of the central base layer (1) and is integrally formed by water reaction with cement paste of the structural concrete to be poured and expresses adhesive performance; It is characterized in that the self-adhesive concrete pour-integrated sheet waterproofing material for radon blocking consisting of a self-adhesive rubberized asphalt layer (3) formed on the other side of the center base layer (1) and having adhesive performance and behavior response.