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...

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Issue 02/2014 Production and characteristics

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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...

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Issue 05/2024

Replacement of natural lightweight concrete aggregates with recycled material

In the Eifel region, pumice has been a “constant” in the production of lightweight concrete blocks for many decades. More recently, however, there has been a significant decline in production...

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Issue 07/2024

Lightweight granular materials made from mixed masonry rubble for use in infra-lightweight concrete

Introduction Infra-lightweight concrete exhibits an extremely low dry bulk density of up to 800 kg/m³ while also providing sufficient strength, resulting in low thermal and acoustic conductivity....

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Issue 04/2020 Submitted by: Burkhard Schuller Baustoffservice

Early-strength lightweight concrete made of volcanic rock

Lava lightweight concrete, developed by the company Burkhard Schuller Baustoffservice, is a mix of volcanic rock: e.g., of zeolite, pumice and lava. Volcanic rock can be used without additional energy...

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Issue 02/2017 New possible applications

High flexural tensile strength concrete

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