SBS Modification asphalt Road and bridge Waterproof coating what is the price?
SBS modified asphalt road and bridge waterproofing coating construction technology
1、 Construction tools of SBS modified asphalt road and bridge waterproof coating:
Hair dryer, spraying machine, sprayer, trowel, scraper, shovel, hammer, iron trowel, ash bag, rope, bucket and other tools 。
1、 Construction preparation
① SBS modified asphalt adopts self-propelled asphalt distributor, which is mainly composed of insulated asphalt tank, heating system, transmission system, circulating spraying system, operating mechanism, inspection and metering instruments, etc. The spraying amount is controlled by the nozzle width, nozzle height, vehicle speed pump And other working parameters. Before formal construction, trial spraying must be carried out to determine the relationship between the spraying amount and the working parameters of the asphalt distributor;
② Carry out necessary inspection and maintenance for the distributor, such as checking whether the oil quantity is enough, whether the instruments are normal, whether there is leakage in the pipeline and joints, and whether various control devices are flexible;
③ Before loading SBS modified asphalt, the distributor shall be cleaned, the original asphalt in the tank shall be completely cleaned, the vehicle chassis shall be cleaned, dirt and sundries shall be removed, and the original asphalt binder in all pipelines shall be removed;
④ A filter screen with a diameter of 3~5mm shall be added at the inlet of the asphalt pump or on the asphalt truck to prevent sundries in the asphalt pool from entering the distributor, so as to prevent the nozzle from being blocked and uniform distribution.
2. Distribution requirements
① The SBS modified asphalt shall be heated at the mixing station to 185 ℃, and the asphalt shall be heated and insulated by the heating system of the distributor to ensure that the asphalt is distributed at above 180 ℃;
② When the asphalt distributor sprays asphalt, it shall maintain a stable speed and spraying amount, and keep the entire spraying width evenly sprayed. Note that the nozzle of the distribution equipment shall be suitable for the consistency of asphalt, to ensure that it can form a fog, and form an angle of 15~25 ° with the spray pipe. The height of the spray pipe shall be such that the same place receives the asphalt sprayed by 2~3 spray nozzles, and there shall be no white spots, leaks and hollows, and the opposite side and other parts that are not sprayed locally, Manual patching shall be carried out until the modified asphalt thickness is reached;
③ At both ends of the bridge deck, the starting and ending boundaries shall be paved neatly with kraft paper, color strip cloth or asphalt felt, so that the asphalt sprayed out under abnormal conditions when the asphalt distributor starts and stops spraying can fall on the pre paved kraft paper, and the entire site can be kept clean.
④ The thickness of SBS modified asphalt waterproof bonding layer is required to be 1.2mm, and the asphalt density and distribution loss shall be considered when the distributor sets the distribution quality;
⑤ The distribution quality is mainly measured by the distribution amount and distribution uniformity. The distribution uniformity is determined by observation, and the distribution amount is determined by converting the material density into the distribution thickness.
3. Traffic control
The traffic control shall be carried out before the construction of the asphalt concrete surface course for the SBS waterproof bonding layer of the completed bridge deck, No heavy vehicles are allowed to pass, other vehicles are restricted to pass, the speed is controlled below 5km/h, and no braking or turning is allowed, At the same time, take precautions
Dust and pollution prevention measures; In addition, articles shall not be stacked on the bonding layer at will to prevent man-made destruction. During the formal construction of asphalt concrete surface course, it is also necessary to pay attention that the transport vehicle and paver shall not be damaged to prevent Water binding.
2、 Logistics timeliness
Guangzhou Jiabaili Waterproof Engineering Co., Ltd. is located near Guangzhou Baiyun Logistics Park. It has a nationally developed logistics network system. It will arrive in three days in South China, East China, Central China and Southwest China, and it will arrive in four to five days in other regions.
3、 Cooperation mode
The factory starts the batch with one barrel, prepays the deposit, and delivers the goods to the local logistics network. When picking up the goods, the factory can pick up the goods after paying the balance.
