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To establish Chinese first-class brand

Time:2018/08/08 Hits:
Cold mix asphalt is a kind of high-tech road paving and repairing material, the core material is from the United States.The initial research and development is based on requirement of winter maintenance, emergency rescue and paving small road surface, so as to prevent the occurrence of pit in the road, affect the safety of driving and improve travel conditions and facilitate construction.In winter, the temperature in North of China is below freezing point, hot mix asphalt can not keep heat preservation storage. And paving regional of emergency maintenance area or the park is small, little quantity is required. It's not worth boot volume production. So paved road or repair potholes used by cold mix asphalt is the only choice for bituminous pavement construction in winter.
 
 
At present the cold mix asphalt is transported by truck in domestic. When paving the new roadways, put cold mix asphalt in bags on the road according to certain horizontal/ vertical distance, and paving thickness.  Then cut bags,  poured cold mix asphalt, hand slicking by shovel and other simple tools, finally made compaction. The disadvantages of this method is obvious: the cold mix asphalt is a kind of less liquid concrete, it is difficult to pave level off completely by hand slicking. And it is time consuming, has high labor intensity, maybe appear water seepage and pit after compaction. It will cause noise when driving, gathering water on road surface, short service life. Therefore, in order to lay out the asphalt pavement in accordance with the requirements of flatness and strength design, it is necessary to apply the paving machines on-site paving compaction to realize mechanized construction.
 
 
 
The cold mix asphalt is cold mixing and cold paving. It needs to be  stored for a long time and constructed on normal temperature. The asphalt flows on high temperature and embrittlement cracking on low temperature, so we dilution asphalt by solvent, change inherent storage condition of asphalt, and add cold supplements, anti-rutting agent,  anti-stripping agent, Methyl Cellulose and other different additives. After that, the cold mix asphalt can be used full day with deformation resistance , resistance to low temperature solidification and anti water disasters stripping. And can be used for different types road surface in any weather and environment conditions. Compared with hot mix asphalt, the viscosity of cold mix asphalt is strong, liquidity is small , construction workability is poor.  Paving cold mix asphalt by paver can solve the problem of poor mobility, improve construction workability. Otherwise, it cannot mechanical spread because of caking.
 
 
Our company work closely with Shandong traffic institute, after nearly two years research, constantly adjust the formula of cold mix asphalt emulsion, the first launch cold mix asphalt can used paving by paver machine in domestic. It reduces the labor intensity, improve construction efficiency, flatness and strength of road. In late December 2016,  -20 ℃ temperatures, my company paved the road in Haitang street where in the east side of government building, Donggang district, Dandong city, Liaoning Province. and compacted by the crawler paver, vibrating roller and tyre. The length of this new paving road is 2762 meters, width is 6 meters, thickness is 3cm, and Material quantity is 1095 tons. After nearly one year later, this asphalt pavement is still in a new state.
 
Attention: when paving cold mix asphalt by paver machine, the heating temperature of paver screed plate is hotter about 15 ℃ higher than hot mix asphalt concrete. The paving effect will be better. In order to reduce wastage and transportation cost, the customers could choose our cold asphalt emusion, mixing aggregate material at site, without bagging, transport to construction site by tilting cart, pour it into the material hopper directly, then pave the new road.