THE PROCESS OF COLD RECYCLING SITE
The machines Wirtgen cold milling machines are able to recycle, in a single pass, layers of thick flooring. The "heart" of a recycler is the rotor of milling and mixing, element with a large number of special cutting tools. Normally, This rotor rotates in the opposite direction of travel, pulverizing the existing flooring material. As the machine moves forward with rotating milling roller, the water, any integration aggregates, and bitumen additives in the form of foam are placed inside the mixing chamber of recyclers.
The quantities are measured accurately using a microprocessor and rotating roller mixes these new materials with recycled material (in the mixing chamber foaming process takes place through contact of hot bitumen with high pressure water). Recycling trains can have different configurations depending on the type of application and employee bonding. In all cases, the recycler functions as a locomotive pushing or towing equipment hooked to it. Material outgoing from the recycler is pre-compacted by a vibratory roller to get a heavy degree of uniform density throughout the recycled material, later profiled by a motor grader before being constipated by vibratory rollers and rollers.
The range of mineral aggregates mixtures is very large: with the addition of foamed bitumen, the most diverse mixtures of inert materials or natural ground turn into layers of high quality base.
ADVANTAGES
Environmental factors
all existing flooring material is reused, then you don't have to find proper storage areas; the volume of new material retrieved from the quarries is minimized: This will limit the opening of new quarries; also the amount of transport operations and has drastically cut down on global energy consumption is therefore significantly reduced, as well as the deleterious action on roads due to the transit of vehicles;
Qualitative and quantitative characteristics of recycled sheet
you get a high mixing quality of materials on site with water and binders. Pumping systems controlled by a microprocessor allow accurate dosing of liquids are added. The technique of cold recycling of existing flooring creates a layer of superficial packages with excellent mechanical characteristics that do not require the use of reinforced structures; In addition, provides a favorable contribution to bearing capacity of pavement
Structural integrity
the cold recycling process produces layers thick and homogeneous related that does not contain weak interfaces between layers of thinner flooring;
Minimum impact on the background
the impact on the substrate of the pavement is minimal compared to that of remedial measures carried out with conventional machinery that put on the background of repeated loads with deformations. Cold recycling is, normally, a single pass: using a rubberized recycler avoids any contact between the tires and the Foundation discovered