Uncovering-free self-adhesive water stop strip

The utility model belongs to the technological field of water seal waterproof engineering accessories of buildings and specifically relates to an uncovering-free self-adhesive water stop strip. The technical scheme is that the water stop strip comprises a rubber layer, a self-adhesive rubber compound layer is compounded on the rubber layer, and an active silicon dioxide layer with a particle diameter ranging between 0.5mm and 1mm is bonded and embedded on the self-adhesive rubber compound layer. As the active silicon dioxide is an inorganic granular material, the uncovering-free self-adhesive water stop strip has the effects of an isolation layer and more importantly of a frame of a cement mortar layer and enables the strength of an interface to be further enhanced in the construction process. The water stop strip has the advantages that in construction engineering, the water stop strip is more convenient to use and the bonding with cement-based materials is higher in strength and better in stability etc.