| What problems should be paid attention to in the family work of DPS |
Yang Gong of gudun company: briefly explain the "problems needing attention in construction" of permanent condensate
1: After shaking, the permanent setting liquid DPS shall be used. The concrete base surface must be clean and free of oil stains. The base surface must be free of floating sand and loose surface. The oil stains can be washed by oxalic acid dilution spraying.
2: Do not spray when the wind force is greater than level 5, and avoid spraying when the wind force is lower than 5 degrees or higher than 35 degrees.
3: It is not allowed to spray in rainy days. When the temperature exceeds 35 ℃, it can be sprayed once to wet the base surface with clean water for construction. After construction, it shall be cured in time.
4: The DPS of the permanent condensate shall be sprayed evenly without missing or re spraying. Water marks will appear on the concrete structure during repeated spraying.
5: Spraying shall be from left to right and from bottom to top.
6: When plugging, the crack must be opened into a V-shaped groove, and DPS can be sprayed after the groove is cleaned.
Worker Yang's note: for example, basement A: before construction, the laitance and cement slag left by the overall operation formwork, scaffold and foundation surface shall be cleaned and roughened. The reinforcement of the screw hole on the wall facing the water surface shall be cut off and filled with quick setting cement for compaction.
B: Check whether there are cracks and pockmarks. If there are, cut a 5x3cm V-shaped groove in the crack, spray DPS, fill and compact with quick setting cement, and spray DPS.
c: After repairing the wall, evenly spray one layer of DPS.
D: When the first pass is nearly dry, spray the second pass of DPS, and wait for 15 hours to accept the project.
In general, all works are basically the same. First, clean the base surface, repair the cracks and waterproof the whole twice. [toilets, garages, stairs, etc.], the reason for choosing permeating crystallization permanent condensate is that the warranty period is long and environmental protection, acid and alkali resistance, frost and thaw resistance, aging resistance, etc. The disadvantage is that the structure and foundation settlement affect the function. If you are worried about the foundation change, it is better to construct DPS after 28 days. However, most projects are now rigid and flexible waterproof, and the rigidity is cement-based and permanent concrete. Flexibility: SBS, self-adhesive coil, followed by some JS, K11, etc. of course, it is most critical to select the corresponding materials according to different projects.
1、 Overview product
Gudun permanent condensate DPS penetration crystallization waterproof material is a colorless, tasteless and non-toxic inorganic water-based waterproof material. It can increase the density of materials requiring waterproof treatment, and play the role of waterproof, reinforcement and anti-corrosion. The catalyst in the permeable crystalline material reacts with the metal in the concrete to form a waterproof barrier against internal sealing and fluid pressure. The permeable crystalline material will not change the color, material and other physical properties of the concrete surface. No film is left on the surface. The permeable crystalline material can maintain the liquid pressure of the material, prevent leakage, moisture, deformation and groove formation, and keep the steel in the concrete from rusting when used with other surface cleaners and coatings.
2、 Product performance
DPS permeable crystalline material concrete is different from any waterproof material in the market. It is a high-tech, non-toxic activated silica. The permeable spray type gel agent is sprayed on the surface of concrete or stone. It can penetrate into the concrete or stone and react with free alkali to generate stable crystalline substances, effectively block the capillary voids in the concrete or stone and become a part of the concrete, It forms a waterproof layer with permanent sealing (crystal) inside. This waterproof layer has the characteristics of making the outer layer stronger, dustproof, antifouling, oil proof and weathering erosion resistant, preventing grease and acid from entering the concrete, preventing mold and microorganisms from growing on its surface and inside, and prolonging the life of concrete. Therefore, the application of permeable crystalline materials in concrete makes the concrete structure have a durable waterproof function, At the same time, it can protect the concrete and achieve the peculiar effect of treating both the symptoms and the root cause.
3、 Product application
Because of its unique performance and advantages, DPS permeable crystalline materials have been widely used in the construction industry, especially for concrete floors, walls, basements, roofs, airports, swimming pools, sports fields, overpasses, tunnels, bridges, tunnels, etc., and are also widely used in commercial, industrial, family and property communities. Since the use of permeable crystalline materials prevents the surface of buildings from being harmed and damaged again, It extends the service life, greatly saves the maintenance, repair and replacement costs, and is welcomed by users.
4、 Construction method
1. Clean the surface mechanically or with other materials.
2. Spray the permeable crystalline material once (the pressure of the spray is 30psi).
3. Wait for 24 hours for the permeating crystallization material to dry naturally, control the temperature / humidity of the permeating crystallization material, and the relative temperature is 25%.
4. Mix the cement slurry (without sand) evenly and apply it on the construction surface.
5. Mix the cement mortar evenly and fill the construction surface. (the next process must be completed within 0-8 hours and the time must be well controlled).
6. Spray the penetrating crystalline material again.
7. Wait 24 hours for air drying.
be careful:
1. Do not let the cement slurry dry out when the humidity is low outdoors, such as in the sun. If it is dry, spray water once immediately. (keep humidity)
2. The best method for large area is to do it in different areas, and do not adjust too much cement slurry.
3. This method is suitable for all maintenance, including crack repair, large-area thickening and fracture.
Gu Dun Yang Gong: 13503217507 |
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