How to maintain asphalt pavement? Can it be repaired after it breaks?

Hole cleaning.

Determine the excavation position of the pit, after milling or cutting the seam around, clean up the gravel and waste residue in and around the pit to be repaired, and there shall be no mud, ice and other sundries in the pit, and the pit to be repaired should have a neat cutting edge, and the removal of waste residue should see the solid solid surface until it is seen.

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Brush with interface agent.

Brush the interface agent around and at the bottom of the cleaned pit, especially around the pit to be evenly painted. In this way, the bonding effect of the old and new materials will be better. If the asphalt pavement potholes are repaired, they can be cleaned or not painted, depending on the field conditions.

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Cold patch fills the pit.

Fill enough Huatong cold patch into the pit until the filler is higher than the road surface, after filling the pit ** should be slightly higher than the surrounding road surface and arc-shaped, if the depth of the pavement pit is greater than 7cm, it should be filled in layers, compacted layer by layer, each layer of 3-4cm.

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After the compaction is evenly laid, according to the field environment, the size and depth of the repair area, select the appropriate compaction tools and methods for compaction. Such as automobile tire compaction, manpower compaction, vibrating plate compaction, road roller compaction. When repairing high-grade highways, the perimeter and corners of the repaired area should be fully compacted.

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Open to traffic. The cold repair process has a short operation time, and it can be directly opened to traffic after 10 minutes of repair.

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Generally, the asphalt pavement is repaired by using grout to fill the treatment, if there is a deep depression such as a pit and a hole, the asphalt cold patch is used to fill, and the effect is good.

When the asphalt pavement cracks can be treated with grout glue to achieve the effect of closed cracks, in the case of potholes and a certain depth of depression, asphalt cold patch material is used to fill, the effect is good, Yantai Huatong asphalt cold patch can achieve the effect of long-term repair, asphalt cold patch can be used without secondary repair, use throughout the year, the repair of asphalt pavement is handed over to Yantai Huatong to help the road to be smooth.

Summary. OK.

Can cement pavement can be repaired with asphalt, now there is a kind of asphalt cold patch, can be used for a variety of pavement base surface of the pothole repair, before the unit is the use of smoke platform Huatong asphalt cold patch, repair pothole can be opened to traffic immediately, can be used all year round, rainy season can also be normal construction, very convenient.

Cracks in concrete pavement can be directly repaired with asphalt, but can not be directly repaired with ordinary asphalt, and special grout or joint materials need to be used to improve performance, such as Jiage grout glue or Jiage seam tape, one is the grout modified asphalt of direct grout treatment, and the other is the seam material of seam treatment.

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It is not possible to repair the asphalt pavement with cement, and it is impossible to use cement on the asphalt, because the two are not bonded. Asphalt pavement special potting glue to fill cracks: use a slotting machine to slot, blow off the debris left in the cracks after slotting, in the case of preheated pavement slotting, the grout glue is heated to 180, poured into the cracks and smoothed, and the potting glue temperature drops to room temperature after open traffic.

Cold patch asphalt grouting: clean the dust in the cracks, pour the sand and ordinary cement (after the dosage is evenly mixed, pour into the cracks, open traffic for 1-2 hours** excess sand, and then use a self-made grout filling machine to pour cold asphalt, and use a self-made sand filling shed Huiduan machine to fill the sand cover, open traffic. The thickness of the sand should be determined according to the width and depth of the crack, in order to ensure that the sand can be poured into the crack as much as possible, it is easy to decide the opening time according to the traffic volume.

Asphalt pavement is polluted by oil treatment method: you can use the method of flushing back to sprinkle soil first and then sweep to clean most of the oil, and then rinse it with a high-pressure water gun. Asphalt concrete pavement sprinkled with engine oil will not damage the road surface in time.

It's troublesome if it's diesel, which can dilute and dissolve asphalt. The adhesion of bad asphalt in the broken cavity state, so sprinkling diesel will damage the road surface, a small amount of diesel oil can be washed with soil, and a large amount of diesel fuel will form a large scattered circle damage to the road surface, so you must be careful.

Dear, hello, I am glad to answer for you why the maintenance of asphalt pavement is relatively simple is "the importance of asphalt pavement maintenance With the rapid development of China's economy, highway construction has developed rapidly, in China's existing main trunk roads, more than 70% are asphalt pavement. The maintenance of asphalt pavement accounts for the proportion of daily maintenance of highway is very large. The construction of highways requires a lot of human, material and financial resources, and is a valuable asset of the country, and every citizen has the responsibility and obligation to use and manage it well.

But with the passage of time, asphalt pavement will produce different degrees of setback nucleation due to the influence of climate environment and the celebration effect of driving load. And pavement maintenance is to take effective technical means to slow down this degradation, so that pavement provides good service quality during the design life.