Why are there so many composite manhole covers? According to Xiaobian's understanding, inorganic composite manhole covers are made of new high-strength inorganic synthetic materials and glass fiber composites. So what are the advantages of Fuzhou composite manhole covers?
The polymer resin composite manhole cover is the sealing material on the top of the entrance to the underground facility. Manhole covers must be installed where water, telecommunications, electricity, gas, heat, fire, sanitation and other utilities are installed. The drainage manhole cover and rainwater manhole cover in the residential area are generally about 10 tons, but there is no big car in the residential area; if the greening, the important requirement level of the polymer resin composite manhole cover is relatively low, ordinary people cannot step on it badly, and sometimes they may pass the car At this time, about 5 tons of polymer resin composite manhole cover can be achieved. On the road, it is mainly used for main roads or auxiliary roads. This is a general construction. Will be displayed on the drawing.
Second in strength to stone and plastic manhole covers, it can carry vehicles over 40 tons. Its comprehensive performance lies between the stone plastic manhole cover and the concrete manhole cover, which is superior to concrete, and can be applied to the places where the manhole cover technology requires. The curing speed is several times faster than fiber concrete, and it can be demolded in 8 hours. If it is consumed in three shifts, it can be demolded three times in 24 hours. Although the amount of mold is more than that of plastic type, as long as the fiber concrete manhole cover is about 1/6, the mold can be reduced investment. The outstanding advantage is that it does not use steel frame reinforcement, but glass fiber composite reinforcement, which belongs to GRC products. Therefore, it is not affected by the rising price of steel. Because it does not contain iron, it is more anti-theft than plastic and fiber reinforced concrete manhole covers. Sex.