COLD RECYCLING Cold recycling is the processing of existing degraded pavements into a full-fledged construction layer. There are two technologies of cold recycling: on-site recycling (in situ), recycling in a KMA stationary mixer (in place). ON-SITE RECYCLING (IN SITU) The SAT - Cold Recycling method uses state-of-the-art technologies, enabling the complete use of road materials previously installed on site. Also useless and environmentally troublesome tar surfaces. Appropriate processing of these materials and the addition of appropriate binders (both hydraulic and asphalt-based) and mineral material allows for the transformation of damaged pavements into full-value construction layers (flexible and very load-bearing foundation). Technological stages when using cold recycling: grinding-granulating of the old surface, adding the dosing mix prescribed by the laboratory recipe, automatic dosing of asphalt emulsion, cement and water, multi-stage mixing of input materials, distribution of the ready mce mixture using a fully automatic table (thickness, cross slopes, initial compaction), final compaction with vibrating rollers. The benefits of on-site cold recycling technology: reducing the demand for raw materials, reducing the amount of waste, especially tar waste, Energy saving, elimination of export of used materials and delivery of new raw materials, use of a smaller amount of construction equipment, shorter construction time, reducing traffic disruption. RECYCLING IN A KMA STATIONARY MIXER (IN PLACE) The method allows for the controlled management of the milled old bituminous surface and mixing it with the granulation material, water, cement and asphalt emulsion in a continuous and electronically controlled manner. The production capacity of the mixer is up to 200 tons / hour. The production process ensures very good mixing of all ingredients and achieving a homogeneous mineral-cement-emulsion mixture or, if necessary, a mineral-cement or mineral-emulsion mixture. Technological stages for the production of the MCE mixture: assembly of a production node at the material storage yard, milling of the old pavement and delivery to the storage yard, mixing all ingredients according to the designed recipe in the KMA factory, załadunek na środki transportu, wbudowanie przy użyciu rozkładarek lub równiarek, zagęszczenie walcami wibracyjnymi. Dozowanie poszczególnych składników odbywa się automatycznie wg opracowanej recepty poprzez zaprogramowanie procesów sterujących. Metoda ta ogranicza do minimum straty materiałowe, umożliwia poprawę nośności gruntu (doprowadzenie do grupy nośności G1), ułożenie warstwy odsączającej oraz wyeliminowanie miejsc wysadzinowych oraz profilowanie niwelety przy użyciu zrecyklowanej mieszanki. Opublikowane na stronie internetowej 05.10.2007 – Ostatnia aktualizacja 28.05.2014 12:35:00