1. For control of paving thickness , should follow the requirements of the design structure. Since the gravel and dolomite segregation phenomenon in grade ingredients blending in, which led to non-uniform graded mixes,Road Router Crack in this case, the leveling worker in paving thickness should adjusted the thickness according to the maximum particle size grade ingredients at any time , rather than fixed paving thickness, otherwise there will be glossy seal layer or scratches phenomenon.
2. For dolomite, gravel segregation phenomenon, should take appropriate measures to resolve, in the ingredients compartment conveyor placed a small sprinkler, pre-wetted graded mixes,Good Quality Asphalt Pavement Hammers avoid graded mixture in the top of the belt whereabouts part gravel and dolomite segregation, while after wetting the mixture reduces the amount of powder loss, increasing the accuracy of measurement.
Economic and social benefits of slurry seal1.Slurry seal with good economic, it is 60% lower cost on road maintenance compared with by the road without maintenance for 20 years without maintenance , the paving cost will be about 50% lower every 10 years , and pavement performance is much better.
2.Reduce environmental pollution and improve construction conditions, slurry seal from construction materials, proportioning, mixing, paving throughout, always operating under normal temperature conditions of emulsified asphalt and sand and gravel do not need to be heated,Aging road maintenance hydraulic tools suppliers no heavy physical activity, complete mechanical automatic operation, reduce labor intensity, significantly reduce emissions of harmful substances.
3.Saving energy. It need to be repeat heated when repair roads with hot asphalt at 165-170 ℃,huge a lot of sand and gravel mixing materials necessary for drying after heating to 150 ℃.While paving with asphalt emulsion, only in the production of emulsified asphalt will bitumen was heated to 130 ℃,low cost concrete equipment supplier without heating again later. According to statistics than with emulsified asphalt roads with hot asphalt to save energy by more than 50%.
4.Extend the construction period, slurry seal at the surface temperature above 10 ℃ can be constructed, than the average hot asphalt to extend the 2 months of construction time, and immediately after the rain the next construction. Reducing downtime costs in favor of rain in a timely manner to protect the asphalt road to stop increasing and expanding diseases.
All in all,, an effective construction technology of slurry seal for rural road maintenance and repair, with less material, old pavement Quick Fix feature role, in addition to slurry seal can also be used in the conservation of charge (with a mixture of slurry treatment localized disease) to ask the hard way on behalf of other aspects. In the rural road maintenance work and it plays an important role, but also can be used in a direct replacement for hot asphalt instead of making surface on white fabric do surface, the construction method is simple, can effectively improve the road service life, saving a lot of money and energy, improved significantly economic and social benefits.
