Recycling of lightweight concrete

Sustainability benefits of lightweight concrete

The ongoing discussion on closed-loop recycling is increasingly focusing on the construction industry which uses significant amounts of mineral resources and counts among the large waste producers. In excess of 50 mio. tons of demolition waste are generated each year, frequently including a mixture of different components. New concepts and technologies are needed for their recovery. The increasing diversity of materials poses a problem.

Homogeneous material fractions free from foreign and undesirable substances are required, for example, for concrete construction. By 2020, the manufacturers of...

Related articles:

Issue 2019-02 Recycling of lightweight concrete

Pilot plant paves the way to the future

Implementation of a zero-waste economy requires feeding back of secondary raw materials into subsequent production runs, which is one of the major challenges all raw material processing industries are...

more
Issue 2014-02 Production and characteristics

Lightweight concrete with added aerogels as a structural material –

Macroporous lightweight concretes whose thermal insulation effect relies on a certain ratio of air voids in the material are subject to physical limitations that have been virtually exhausted by...

more
Issue 2020-02 Construction rubble

An innovative raw material for lightweight granules with a wide range of applications

Construction and demolition waste, at 89 million tons, is the dominant type of waste in Germany in terms of quantity. These wastes are mainly recycled in earthworks and road construction. A major part...

more
Issue 2018-02 Infra-lightweight concrete – Potentials for the precast industry

II.) Material-appropriate designing and building

Infra-lightweight concrete is of such lightweight and thus thermal insulating, so that this concrete enables the construction of architectural concrete buildings which meet today’s structural...

more
Issue 2020-02 Material research

Textile-reinforced concrete produced with renewable raw materials

Adding steel to the concrete matrix is a long-established method that is at the same time necessary because concrete exhibits a high level of compressive strength but only limited tensile strength,...

more