By high grade highway repair wall corrosion prevention technology

Defending against the wall to repair the wall against the wall renovation high-grade highway embalmed the wall is made of reinforced concrete pouring, has the property of porous multiphase and contains micro cracks. Because of the influence of the freeze-thaw cycle, the annual use of deicing salt and carbonation, easily to fall off the wall surface leakage prevention of highway reinforcement, concrete compactness decline and not waterproof. Water with chlorine ions into the concrete internal cause steel corrosion, concrete further damage caused by steel corrosion expansion force, lead to prevent walling, incomplete, loose, appear longitudinal cracks, not only affects the engineering image, and may even directly affect the safety. 1. Engineering material 1. Cement: 1 comely spreading TM comely cement ability of TM is based on cement combined with beautiful seam an agent, high strength aggregate, by polymer modification, supplemented by penetrating the seam an agent, soft seam an agent, thixotropic seam an agent made from materials such as concrete special repair material. This product has good thixotropy, high permeability, early strength, rapid hardening, without shrinkage; Non-toxic, harmless, not aging, on the water quality and the surrounding environment pollution-free, since good tightness, rust resistance, mixing water can be used, etc. Comely spreading TM cement compressive strength technical indexes ( MPa） 2 h, 1524 h 2528 d acuity or 40 or higher water mixture can use time, about 30 min min can adjust the final setting time, about 60 min min can cement is mainly used in high-speed comely spreading TM: high-speed ( High speed) Box girder, T beam, municipal Bridges, piers, prevent the surface such as a wall caused by deicing salt erosion and carbonization craze, ballast-surface, holes, reinforcement, etc. 1. Concrete anti-corrosion material: 2 Kang Lilong TM Kang Lilong TM - is based on the oxygen Silicon compound concrete protective material system. The coating material has good permeability, 2 - can penetrate into the concrete 3 mm, and keep a good compatibility with concrete, and gives the fluoride coating material good anti aging resistance, high and low temperature resistance, color performance and so on. Kang Lilong TM is a two-component, concrete protection materials, excellent resistance to chlorine ion corrosion, waterproof, prevent carbonization performance, can effectively improve the service life of concrete structure and improve decorative concrete. Serial number state inspection items index 1 container no lumps, after mixing homogeneously state 2 brush barrier-free sex 3 high quality stability at low temperature drying time (4 Table dry) / h ≦ 25 ≦ adhesion level 1 6 bibulous rate than / % & lt; 7. 57 whiskering resistance, salt resistance 72 h without exception 8 chloride ion absorption rate reduction, % & gt; 859 impervious ( 0. 3MPa，30min） Impervious 10 artificial climate ageing resistance 600 h foaming, peeling, 2, no crack, anti-corrosion technology to repair 2. 1 basic cleaning: using high pressure water flushing at the grass-roots level, removal of dust and loose organization. 2. 2 with comely spreading TM cement to repair damaged, cracks, Digging into V groove) , exposure ( Derusting) Part 2. Use 3 Kang Lilong concrete protection against a wall surface coating material.