- Issue Time
- May 26,2014
Synchronization of asphalt pavement surface is the use of specialized construction equipment
Synchronization of asphalt pavement surface is the use of specialized construction equipment - (! Spraying hot asphalt temperature should reach 170a C above) synchronous chip seal machines, hot asphalt will be uniform and clean, dry stone almost simultaneously (1s within) sprayed on the pavement, asphalt and stone to ensure in the shortest time to complete binding, and the role of external loads evolving strength, stopping when aggregate paving, asphalt paving binder is automatically stopped, there is no waiting for aggregate asphalt binder layer.
When combined, the spray temperature of the polymer modified bitumen 170 ℃, the temperature can be combined with more than guaranteed 165 ℃, asphalt binder is still good fluidity, due to the surface tension of the fluid bitumen, asphalt heat upwardly along the surface of the stone climb height approximately the height of the stone 2/3, and a meniscus formed on the surface of stone, the stone that is 70% of the area were coated asphalt, bitumen and aggregates has to ensure sufficient bonding strength.
Meanwhile, Mao attractive asphalt can produce a concave, good liquidity aggregate into asphalt surface micro-texture, between the concave and aggregate like jewelery and so there is no aggregate loss. Then compacted gravel layer is formed by a single layer of asphalt compaction or natural lane tire roller. Primarily as a road surfacing seal layer, can also be used for surface construction of low-grade highway. Synchronous chip seal adhesive layer technology to shorten the interval between spraying and spreading aggregate, increased the aggregate particles were coated with the adhesive area, easier to ensure the stability of the proportional relationship between them, improve operational efficiency, reduce the construction cost