(1) The function and application oxidized asphalt conditions of the primer layer

The effect of the base coating is to combine the slope of the asphalt surface with the slope of the non-asphalt base well, pour emulsified asphalt, stone asphalt or liquid asphalt on the bottom layer, and form a thin layer on the surface of the base cylinder. This is a good example.

Primary asphalt should be irrigated assuming the following conditions are met:

Granulated gravel and granulated gravel on asphalt pavements. This is a good example.

Cement, lime, ash and other inorganic binders stabilize the soil. This is a good example.

Clear coat asphalt must be irrigated on a semi-rigid substrate of granular material. This is a good example.

2) The function of the adhesive layer and its application conditions

Bonding layer effect: spray thin layer of asphalt material to strengthen the bond between the asphalt layer and the asphalt layer of the layering machine and between the asphalt layer and the concrete layering machine. This is a good example.

It is necessary to pour bitumen from the adhesive layer assuming the following conditions are met:

When laying the upper part of a two-layer or three-layer hot mix asphalt pavement, the asphalt will contaminate the lower part of the asphalt. This is a good example.

Lay a layer of asphalt over an old asphalt layer. This is a good example.

Asphalt road is covered with concrete pavement. This is a good example.

Journey mud edges, rainwater inlets, shafts oxidized asphalt etc. D. Touch new asphalt mix. This is a good example.

3) The function and operating conditions of the sealing layer

Seal coats are designed to close surface voids and prevent water from entering the surface or bottom. This is a good example.

Laying on the inclined surface is called the upper seal, and laying on the inclined surface is called the bottom layer. This is a good example.

The seal top must be laid on the asphalt surface, assuming one of the following conditions is met:

To the surface of the asphalt showing large vacancies, the permeability is severe. This is a good example.

Damaged or graded old asphalt road. This is a good example.

To improve skid resistance, it is necessary to lay asphalt pavement. This is a good example.

· New asphalt coatings that require an abrasive or protective layer. This is a good example.

4) The effect and application conditions of the liquid layer

The effect of the liquid sealing layer: is the active bituminous mixture, mixed in powder or sand, filler (cement, lime, ash, lime, etc.) in the proper separation and uniformly distributed over the course of the emulsified bitumen, additives and water, constituting the bitumen seal . This is a good example.

Bottom seals should be laid under the asphalt surface in the following cases:

There is a lot of rain on the ground subjects, the asphalt road is empty, and the seepage is severe. This is a good example.

After laying the bottom ballast, the asphalt layer could not be rolled out in time, so the vehicle had to be taken.

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