The method of gravel packing comprises injecting into the wellbore a gravel pack composition that comprises gravel and a carrier fluid.

The gravel spreading device for motor vehicles is comprised of a gravel container (1), a gravel channel supplying the gravel to a wheel and a conveyor belt (5).

Plus the 5 tons of gravel that will be delivered tomorrow.

Covered in gravel, it stretches for about 150 meters.

In a third step, the hydraulic binders (15) are used with the superfines (21) and tectosilicates (18) for producing casts and mortars (17), and with gravel (22) to produce a gravel substitute (16).

The device and the method are applicable in particular to separating stone chippings and bitumen in excavated asphalt road surfaces.

Scratches, dents or stone chippings are hard to avoid during the lifetime of a vehicle.

Sometime around 8000 BC the last remaining enclosures were covered over with imported earth, stone chippings and refuse matter, and the site abandoned to the elements.

During the production of said chippings, the cooling process is carried out with the chips being moved at least repeatedly by dry means, i.e. without being wetted by a liquid cooling agent.

The chippings used in the mix shall be washed

The chippings used in the mix shall be washed

The prices for chippings depend on the starting material.

This can be done by depositing chippings on the track but because of their small size, chippings are often carried by the wind.