Injection waterproofing

Injection waterproofing - this is a relatively new type of waterproofing, not only new but also the best way of waterproofing. Applied to the outer wall of the base processing or other structures to prevent direct contact with the moisture of the soil structure. The most important difference of this method lies in the fact that the materials used, are pumped into the depth of the material under high pressure over the contact soil-structure, design, construction, through a special device-packers. Materials applicable Coal Mining method can be divided into four types: - polyurethane - acrylic gel - epoxy - microcement. Polyurethane materials and acrylate gels - are plastic, and are not destroyed when the loads. These materials gidroreaktivny, polymerize under the influence of water. Epoxy materials, unlike polyurethanes and acrylates polymerize without moisture. In some cases, large amounts of water, negatively affects the performance properties of epoxy dispersions. Microcement as penetrating waterproofing, penetrating all voids and cracks, crystallizing, form an impenetrable water barrier. Construction, treated with epoxy compounds, after polymerization, acquire additional mechanical strength. In some cases, pumping epoxy resin is effective for repairing cracks and additional reinforcement of foundations. The most economical materials for Injectable waterproofing are polyurethane polymers. In contact with water, they expand up to 20 times. Despite the apparent simplicity of this method, it is difficult to reproduce without a detailed site survey, selection of material and technology. Among the most well-known materials can be distinguished well-known German brand injection waterproofing Joco, Shomberg, Sika, as well as relatively cheap domestic compositions using the components of Bayer. These materials are effectively used in underground tunnels and tunnels of the subway lines.