Abstract

Construction and demolition waste makes up a substantial part of all waste produced in Europe. Its impact on the environment may be relatively small, but it exists in large amounts and holds many options of re-use. This is why it remains a frequently discussed topic of European policy. As part of circular economy, the European Commission has already proposed new goals and strategies for existing types of waste. However, they are not entirely clear on the usage of new kinds of building and demolition waste, as they are yet to be specified by existing legislation. This paper discusses new kinds of building and demolition waste and the basic principles (new technology) of their use. The possibilities of utilizing new kinds of waste are based on a multicriteria optimization calculation, specifying each material and proposing ways of its further use. Recent findings can expand the choice of new uses of construction and demolition waste and reduce their impact on the environment (less waste, better properties and more effective processing, reducing transportation needs, maximizing re-use and recycling).

Highlights

  • The key legislation governing construction and demolition waste (CDW) is the general Directive on waste [1], which defines basic terms and definitions that pertain to waste handling

  • The possibilities of utilizing new kinds of waste are based on a multicriteria optimization calculation, specifying each material and proposing ways of its further use

  • Later sections of this paper describe a new multi criteria calculation that explores possibilities of the re-use of certain kinds of waste, mainly construction and demolition waste and energy by-products, which are being produced in large quantities

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Summary

Introduction

The key legislation governing construction and demolition waste (CDW) is the general Directive on waste [1], which defines basic terms and definitions that pertain to waste handling. It sets a goal for member states to meet the 70 % recycling target by 2020. Other noteworthy documents are the Circular Economy Package [5], which contains revised legal proposals on waste, and the Circular Economy Action Plan (CEAP) [6], which is intended to prompt Europe to transition to circular economy [2, 3, 7, 8]. Bovea and Powell [9], and Coelho and Brito [10] stated that more so than any time in the past, this action plan emphasizes by-products and the value of waste at the end of a material's service by re-use and recycling as a central part of circular economy

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