| Temporary road and roadbed filling |
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Dismantling always leaves a lot of demolition waste and literally piles of broken concrete which may and even should be turned into money again. We will process and take care of the demolition waste: used reinforced concrete slabs, crushed bricks, asphalt bits right at the demolition site. The secondary aggregate will be an ideal material for roadbed, temporary roads, and to fill up foundation pits. Recycling, or processing of building materials has not gained widespread use in our country yet, while in Europe it became one of the surest methods to save on construction without violating the law. How the secondary crushed stone is made in the first place? Demolition waste is broken into approximately half-meter pieces using hydraulic shears, while the bulk of reinforcement is being removed from it. The broken concrete is loaded into sorting machine where it will be grinded into smaller pieces while magnetic separator will remove the remainder of steel reinforcement. Lastly, the crushed concrete will sifted through mesh screen and separated into crushed stone of different sizes. Secondary crushed stone is used first of all to fill roads and fill up foundation pits. Secondary crushed stone can be used on all roads except highways. All other roads and places where crushed stone has to be added to from time to time – parking lots, sidewalks, pedestrian pathways – may be filled with grinded construction and demolition waste. Use of construction and demolition waste for that purpose helps save money thanks to the cheapness of this material, while crushed granite will cost much more. Road filling is done in several phases. First, secondary crushed stone is being spread evenly along the roadbed and leveled by road roller. Then, the roadbed is filled with sand and again leveled by road roller. The upper layer of the road is filled with small crushed stone which then will be compacted and finally leveled by asphalt rollers. Besides roadbed filling, secondary crushed stone is also used for exclusively construction purposes. In fact, demolition waste remains at the jobsite without polluting the environment. Filling of temporary roads with demolition waste will help not only to save on purchasing crushed stone but also to save time, especially if building or structure was taken down only to free space for something new to be erected in its place. Secondary crushed stone is used on construction sites to fill temporary roads, various access ways and ramps. Also, temporary road filling with secondary crushed stone will be necessary if heavy machinery will be used at the construction site. |
