what is asphalt?

Black asphalt material, semi-solid or viscous and very sticky. Asphalt mix material is made by mixing sand and bitumen, and the construction of roads, runways and buildings used for the roof.

Asphalt types:

Asphalt with regard to the use and incorporation of the three categories of hot asphalt, bitumen and asphalt division is protective.

HMA

Hot asphalt Sfalthayy refer to those in which the heat of the asphalt and aggregate are mixed and heat and compacted.

HMA has the following types:

Asphalt concrete
This type of asphalt has several executive suite are:
Mixed hot and cold execute
This type of asphalt mix concrete also run hot and cold preparation consists of pure bitumen (AC), aggregate gradation was bad, well granulated stone materials. When run, the probe is also common.

Mixed cold and cold execute
Asphalt Rld
Asphalt mastic
Asphalt Protection
Protective asphalts mixtures of bitumen and aggregate refers to those that provide coverage and protection against atmospheric agents used to be. Protection prevents erosion asphalt road surface is gravel or asphalt. This paved the ease of implementation and its thickness is usually 2. 5 cm.
Protection can also be quite bitumen asphalt course, that in this type of protective asphalt aggregate is not used and the type of asphalt mixtures can be separated from it. With the aim of creating a protective layer and specifically this type of asphalt a layer of bitumen on aggregate to aggregate asphalt mixture, which is then used to bond. In this type of tarry asphalt should be used to penetrate the sand layer, but stick to the asphalt above.

Cold Asphalt

Cold asphalt (Cold Mix) to a mixture of aggregate and bitumen or bitumen emulsion mix is ​​said that its raw materials are mixed at room temperature. In some types of asphalt, bitumen may be heated as necessary, but other materials are mixed with bitumen without warming. Cold asphalt is divided into two categories:

Cold asphalt prefabricated (Plant Mixed cold mix)
Rdmyks (Road Mix)