Lightweight concrete

Lightweight aggregates – a new thermally bound lightweight aggregate of high resource efficiency

Recycling materials from building construction can currently not be adequately recycled. Reasons for this are their considerable heterogeneity in terms of materials composition and high fine particle content. Recycling as filling material and in the construction of waste disposal facilities, or as landfill, will in future no longer be possible in view of the stringent application of the German law of lifecycle management and/or the steady decrease of waste-disposal capacities. In this context, the joint research project “lightweight aggregates,” supported by the German Federal Ministry for...

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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...

Issue 02/2016 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...

Issue 08/2009 A number of advantages

SCC with lightweight aggregates

Self-compacting concrete can be processed purely under the impact of gravity and without any vibration, even in densely reinforced false work or complex geometries.  For this purpose, the concrete...

Issue 02/2014 An experimental building

Monolithic external architectural lightweight concrete components providing highly efficient thermal insulation –

Combining the physical characteristics of lightweight concrete that provides highly efficient heat insulation with the appearance of a state-of-the-art architectural concrete makes it possible to...

Issue 05/2012

ROTEC: Lightweight aggregates taken from nature

In the region, Rotec operates open-pit quarries to extract the naturally expanded silicate rock. The company is a member of the Bisotherm sales organization. It uses special processing, separation and...