Year1
- 规格：
- 25公斤
- 密度：
- 1.6
- 硬度：
- 20-60
Density in kilograms
Shelf life in months
Common names Plastic clay, clay, plastic ointment, waterproof ointment, caulking clay, PVC caulking material PVC cement is a new type of building waterproofing material that has the advantages of elasticity, strong adhesion, high heat resistance, good low temperature flexibility, slow aging, acid and alkali corrosion resistance, suitable for hot construction and can be used cold. It is improved and developed on the basis of traditional clay. Can replace asphalt linoleum or other waterproofing materials. As building roofs, underground moisture-proofing, waterproofing of gutters and channels, road caulking, etc., it has good results. It is simple to construct and easy to repair, and is very popular among users.
Performance and advantages
It has good heat resistance and cold resistance. It does not drip in hot weather and does not stick to your feet. It is flexible in cold winter and can be used in a temperature range of +℃℃. It has a service life of more than ten years without aging.
It has good bonding and elongation properties and is adaptable to changes in the roof base layer caused by thermal expansion and contraction, vibration, settlement and other reasons.
Anti-aging, has certain acid and alkali resistance and oil resistance.
Construction Scope
Seamless waterproofing provides various new and old concrete roof panels, wall panels, floors, aqueducts, water pipes, overpasses, dams, pools, tanks, driveways, tunnels, basements and other components. Sealing and waterproofing of structures can play a role in repairing seams and preventing leaks.
The coating film can be used to prevent seepage and brush the dry roof. It can replace linoleum to waterproof the dry floor formwork surface, foundation caverns, tanks and pipes. It can prevent seepage, moisture and corrosion.
Specially used for filling cracks and leaks in highways and bridges.
Construction method
Preparation before construction
Construction tools: seam cleaning machine, seam cutting machine, hair dryer, seam filling machine, manual mechanical scraper, etc.
Construction materials: PVC cement cleaning agent.
2 Construction
Use a seam cleaning machine to clean the cutting joints or expansion joints that need to be filled. The depth of the seam cleaning should be , and use a hair dryer to blow away the floating dust. There should be no floating dust on the joint wall.
Before heating and melting the filling, the inner film bag must be torn off to prevent flakes from being formed during melting, which will affect the construction
For mechanical filling, use a knife to cut the clay into blocks and put them into the filling joints In the machine, the hot melt temperature is set at ℃. At a constant temperature of ℃, the melted clay cannot be in direct contact with the electric heating rod. Instead, a layer of thermal oil should be used to insulate the discharge hole, and the feed valve can be closed to filter. The mesh size of the mesh should be larger than the mesh size. Be careful not to bring sand and gravel into the machine when picking up materials and cutting.
For manual filling, use a pot with a heat-conducting oil layer for hot melting. The heating temperature is preferably at ℃ with a slow fire. In order to prevent the temperature from being too high, coking and deterioration, it must be stirred up and down frequently. Each pot can melt a kilogram of bags, and the temperature is kept at a slow fire. Unmelted clay can be added when half of the melted material is used. There is no need to wait until it is used up before adding. When taking material from the liquid surface, you can place a screen on the liquid surface and use a spoon to remove the material from the screen. When scooping out the glue for filling and discharging the material from the bottom of the pot, you also need to stir the material up and down to prevent the upper melted material from aging if it is not used for a long time. When filling joints when the temperature is low, first bake the joint filling spoon on the fire. heat, and then use another spoon to scoop out the material and put it into the caulking spoon for filling. Do not use the caulking spoon to scoop the material directly from the pot, otherwise it will seriously pollute the road surface. A dedicated person is required to melt the rubber material and be responsible for filling it on the trailer. When the filling personnel are loading or unloading materials, there can be people filling and filling the two stoves at the same time. The two stoves are melted in turn, and kilometers can be filled every hour.
The cement should be poured into the gaps without moisture, and the pouring amount should be lower than the construction surface. Note that when filling joints in hot weather, due to the thermal expansion and contraction of the concrete slab, it should be poured low in the morning and flat at noon. Irrigation, high irrigation in the afternoon
When cleaning the joints, glue is often poured onto the flat surface accidentally. At this time, use a scraper to scrape off the glue on the road surface
Road joint filling and maintenance should be done on the pavement that has been filled with joints. On, the opening time depends on the temperature. When it is lower than ℃, it can be opened to traffic after filling it well. When filling leaks and filling joints, there are often leaks or leakage of poured materials. For leaks, filling should be made in time
After the construction of cleaning tools is completed, the mixer and joint filling machine should be cleaned with solvent, and the hot melt pot should be cleaned with solvent. The remaining glue should be scraped off to prevent the remaining glue from coking during the next melting.
Three precautions
Because when the concrete is wet, it will affect the adhesion of the product. Avoid construction on rainy days or in gaps with water. Therefore, you should know the weather forecast before construction. Do not perform construction in rainy days< br/> Because the product contains flammable tar, be careful not to overflow when preheating and melting to prevent fire
When clearing the gap, the walls on both sides of the gap must be clean and dry, otherwise the bonding fastness of the glue and the gap will be affected. Easy to degumming
According to the requirements of the "Technical Specifications for Construction of Highway Cement Concrete Pavement", the depth of glue filling should be, the shallowest is not less than.
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