Introduction on Mesh Crack of Asphalt Pavement

• Posted by Mavis Chai October 17, 2022 Filed in Business #  #Asphalt Mixing Plant  113 views
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  Definition of network crack

  A mesh lattice of cracks, the spacing of the size of the similar. The shape of such cracks is irregular large polygons (or large grids), which are different from cracks in shape and size. Usually, the short side length is more than 40cm, the long side length is less than 3m, and the edges and corners are obvious.

  Such cracks often cause surface water to seep into the roadbed and roadbed, reducing the structural strength of the road surface and forming other damage, such as cracks, ruts, etc.

  Reticular (massive) cracks - mild

  Light: fine seam, not scattered or slightly scattered, large lumpiness, lumpiness greater than 100cm, calculated by area.

  Reticular (massive) cracks - severe

  Heavy: seam width, scattered, small split block, block degree between 50-100cm, calculated by area.

  

  Causes of network cracks

  Block crack is usually due to the laying of asphalt pavement asphalt mixture with a large number of low penetration of asphalt and hydrophilic aggregate, or asphalt aging loss of its elasticity, and under the action of traffic load or due to the action of low temperature so that asphalt concrete shrinkage crack, so sometimes also called this kind of crack shrinkage crack. Net cracks often occur in open squares, parking lots and city roads. More high quality plant for road construction.