Year1
- 规格：
- 25公斤
- 密度：
- 1.6
- 硬度：
- 55
Density: kg
Shelf life: months
& Common names: plastic clay, C clay, plastic ointment, waterproof ointment, embedded Joint cement, polyvinyl chloride joint filling material PVC cement is a kind 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. A new type of building waterproof material. 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 +°C &°C. It has a service life of more than ten years without aging.
, 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.
, aging resistance, certain acid, alkali and oil resistance.
Scope of construction
, Covering joints and waterproofing: supplying various new and old concrete roof panels, wall panels, floors, aqueducts, water pipes, overpasses, dams, tanks, driveways, underground tunnels, basements and other components. Sealing and waterproofing of structures can play a role in repairing seams and preventing leaks.
. Anti-seepage coating: Applying to dry roofs can replace linoleum to waterproof dry floors, mold surfaces, foundations, caverns, ground tanks and pipes. It can prevent seepage, moisture and corrosion.
Specially used for filling cracks and leaks in highways and bridges.
Construction method
& 1. Preparation before construction:
Construction tools: seam cleaning machinery (seam cutting machine, hair dryer), seam filling machine (manual, mechanical), scraper, etc.< br/> , construction materials: polyvinyl chloride clay, cleaning agent.
2. Construction:
Seam cleaning: Use a seam cleaning machine to clean the cutting seams or expansion joints that need to be filled. The depth of the seams should be c, and use a hair dryer to blow away the floating dust and remove the seam walls. There should be no floating dust
Heating and filling: (Before heating and melting, the inner film bag must be torn off to prevent flakes from being formed during melting, which will affect the construction)
Mechanical filling: Use a knife to cut the clay Cut it into pieces and put it into the caulking machine. The hot melt temperature is set at ℃ and the constant temperature is ℃ (the melted glue cannot be in direct contact with the electric heating rod, but should be insulated with a layer of thermal oil). Change the discharge hole to , and the feed valve can be closed a little smaller, and the mesh size of the filter screen should be larger than the mesh size. Be careful not to bring sand and gravel into the machine when taking materials and cutting.
Artificial filling: Use a pot with a heat-conducting oil layer for hot melting. The heating temperature (heated with a gentle fire) is preferably ℃&. In order to prevent the temperature from being too high, coking and deterioration, it must be stirred up and down frequently. Each pot can be filled with fusible bags. (kg), simmer and keep at constant temperature for use. When half of the melted material has been used, unmelted clay can be added. There is no need to wait until it is used up before adding. When taking material from the liquid surface, you can put a screen on the liquid surface, and then Use a spoon to scoop out the clay from the screen for filling. When discharging the material from the bottom of the pot, the material must also be stirred 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 fill the joints. Heat the spoon on the fire, 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 and require a dedicated person to melt the rubber. It is also responsible for loading or unloading materials for filling personnel on the trailer. Someone can fill the tank below at the same time (two stoves rotate melting, and can fill kilometers per hour).
The cement should be poured into the gaps without moisture, and the amount of pouring should be lower than the construction surface. (Note: When filling joints in hot weather, the concrete slabs will expand due to thermal expansion and contraction, so low pouring should be done in the morning. , flat irrigation at noon, high irrigation in the afternoon)
Cleaning: When filling joints, glue is often poured onto a flat surface accidentally. At this time, a scraper should be used to scrape off the glue on the road surface
Road joint filling and maintenance: On the pavement where the joints have been filled, the opening time depends on the temperature. When it is below ℃, it can be opened to traffic after it has been filled. Can be opened to traffic
Leak repair: When filling joints, there is often leakage or leakage of poured materials. For leaks, water should be filled in time
Cleaning tools: After the construction is completed, the mixer and joint filling machine should be removed. Clean it with solvent, and scrape off the remaining glue in the hot melt pot to prevent the remaining glue from coking during the next melt.
3. 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. If there is rainy weather, Do not construct
. 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 glue and the gap will be affected. The bonding fastness is easy to debond
According to the requirements of the "Technical Specifications for Construction of Highway Cement Concrete Pavement", the glue filling depth should be, the shallowest is not less than.
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