Profile
Due to its energy and CO2-intensive process technology, the production of cement is associated with more than 5% of global greenhouse gas emissions. The cement and concrete industry is therefore one of the most CO2-intensive industrial sectors in the world and is looking for innovative and equally economical solutions along the entire value chain on the way to climate neutrality – with low emissions, energy-efficient and at the same time resource-saving in the sense of the circular economy.
With our technology for upcycling cement and concrete wastes, high-performance recycled cements and high-quality recycled aggregates can be produced exclusively from waste. The energy-efficient and, above all, CO2-minimised process technology connects climate protection and the circular economy. In this way, we sustainably combine ecology and economy and support the building materials industry on its way to producing CO2-neutral cements.
We focus on decarbonising the building materials industry and optimising the carbon footprint of your products – to protect natural raw material resources and the climate.
Our Partners
The broad range of services offered by BAU+TEC requires a competent team from technology and industry to cover the entire upcycling value chain from the processing of residual materials to the use of new recycled building materials – our partners.
Funding
Projects
Recycling Cements from Concrete Wastes
Our process technology for upcycling concrete wastes is focussed on the production of climate-friendly recycled cements. Using a combination of mechanical and thermal process technology, we recycle the waste material and produce hydraulically hardening recycled cements and high-quality recycled aggregates. In this way, we create new substitutes for conventional clinker, cements and natural aggregates exclusively from waste materials – with low energy consumption and extremely low CO2 emissions.
The technology thus goes far beyond the usual downcycling of concrete wastes and the limited use of crushed concrete in construction practice. Instead, we want to produce high-quality RECEM recycled cements and recycled aggregates from 100% waste material – climate-friendly, energy-efficient and resource-saving on the way to decarbonising the cement and concrete industry and in the spirit of the circular economy.
Recycled Cements from Fibre Cement Wastes
Building components made from fibre cements are characterised by their versatile field of application, e.g. as small or large-format panels for the architectural design of façades or roof coverings of buildings. The increasing demands on climate protection and the circular economy also require fibre cement manufacturers to find new ways of improving the carbon footprint of products containing cement and the reuse of waste materials.
Although recycled wastes from downcycling are already often reused in production as inert fillers, the high utilisation potential as a hydraulically active and simultaneously CO2-minimised cement substitute remains unused so far. This is where the upcycling technology steps in. This process technology makes it possible to process fibre cement wastes from production, processing and building demolition into climate-friendly and at the same time high-performance hydraulically hardening recycled cements in a way, that is both ecologically and economically very attractive. This new energy-efficient and resource-saving key technology shall enable the production of CO2neutral recycled cements as substitutes for conventional cements in fibre cement production in the future.
Asbestos Cement
With the expansion of the process technology, the upcycling of asbestos cements into asbestos-free and environmentally friendly recycled cements is planned. The upgrade is intended to replace the previous, environmentally and/or economically unsatisfactory disposal concepts for this hazardous waste, e.g. by burying it in designated landfill sites and the associated creation of new contaminated sites with so-called eternal costs. In addition, the technology will for the first time make it possible to recycle building elements containing asbestos from the dismantling of façades for energy-efficient building refurbishment – an attractive method for realising the EU demand for an asbestos-free future.
Contact
Managing Director: Dr.-Ing. Wolfgang Perbix
Humboldtstraße 14
65189 Wiesbaden
Tel.: +49 (0) 611.72 44 493
info@bautec-umwelt.com