Construction waste mainly comes from demolition and renovation works, and its total amount depends on the number of contracts and their progress. Waste management on construction sites is governed by the Waste Management Plan contained in the BIOZ Plan.
If hazardous waste is to be generated during works, the contractor is obliged to take it into account in the Safe Work Method Statement and to respond to emergency situations and environmental incidents. Proper waste management on construction sites, including the monitoring of potential residuals of hazardous substances, is done on an ongoing basis by the laboratories located on the project site.
A different type of waste is generated at each construction stage. Bricks and concrete waste are produced at the initial stage of demolition of facilities, on the site where a new project is to be established, while old asphalt or track ballast is produced after the road and track removal. The most commonly generated waste types include soil and rubble, rocks and waste from renovation and disassembly of construction facilities and road infrastructure. Many of them can be re-used at subsequent stages of works. Removed soil is a valuable raw material that may be applied for finishing works. Shrubs and branches from felling, which often cannot be avoided, can be used as biomass fuel or horticultural material after being ground into small pieces (so-called chipping).
Waste generated on construction sites has been more frequently reused (e.g. crushed concrete from demolition may be used as aggregate, removed bituminous mass as reclaimed asphalt). During construction and demolition works, the following can be segregated: metal, wood, glass, rubble, soil, earth, gravel and others.
More detailed information on generated waste can be found HERE .