Projects and Literature
Our main research topic is the CO2-reduced circular economy of mineral building materials. Basic solutions found within the framework of the Helmholtz research programs are to be proven in practice and must be scientifically, technically and economically developed to higher technology levels. To this end, we conduct joint research projects with partners from universities and industry, which are supported by various funding bodies.
Helmholtz Research Program
Research program “Materials and Technologies for the Energy Transition” (MTET)
Within topic 5, “Resource and Energy Efficiency” we address crucial technology gaps in recycling of building materials.
Research program “Energy System Design” (ESD)
Within Topic 2.1 “Digitalization and Systems Technology for Flexibility Solutions” we focus on the integration of decentralized cement processing technologies in a decarbonized energy system.
Project partners
HZDR, FZJ, DLR
Contact
Peter Stemmermann, KIT, 0721 608 24391, peter.stemmermann∂kit.edu
Repost: Autoclaved Aerated Concrete
Recycling cluster Autoclaved aerated concrete (AAC): Optimizing demolition and separation of post use AAC and new routes for circular use of AAC
Project duration 01.06.2019 – 31.12.2022
Abstract
The upcoming end of buildings life time within the next years will lead to increasing amounts of post use AAC material from demolition. The Repost project deals with ways of reusing such material batches within the production of new AAC to avoid landfilling and save primary resources.
Project partners
Xella Technology- and Research Company
KIT Institute for Industrial Production (IIP)
Funded by
BMBF Federal Ministry of Education and Research
Funding code: BMBF 033R249D
Part of ReziProK
Contact
Uwe Schweike, KIT, 0721 608 26001, uwe.schweike∂kit.edu
Peter Stemmermann, KIT, 021 608 24391, peter.stemmermann∂kit.edu
R-Zement Pilot Plant
R-Zement: low CO2 production of di calcium silicate clinker from recycled construction material
Project duration 01.04.2021 – 30.06.2025
Abstract
R-Zement project aims at a pilot plant to establish a decentralized clinker production at a 10t/h scale. The newly found process generates di calcium silicate clinker (belite clinker) at a temperature of 1000°C. At the pilot plant level the rotary kiln will be electrically heated.
An advisory board with members from Baden-Württemberg administration, industrial associations and companies is set up to guide the project.
Funded by
Ministry of the Environment, Climate, Protection and the Energy Sector Baden-Württemberg
Webpage of Landesanstalt für Umwelt Baden-Württemberg LUBW
Förderkennzeichen: L7521115
Literature
Hunsinger, H.; Beuchle, G.; Stemmermann, P.; Schweike, U.; Warzycha, K.; Garbev, K.: Verfahren zur Herstellung von Dicalciumsilikat. DE 10 2012 108 022 B3
Contact
Meriem Sassi, KIT, 0721 608 23648, meriem.sassi∂kit.edu
Ulrich Precht, KIT, 0721 608 24034, ulrich.precht∂kit.edu
Günter Beuchle, KIT, 0721 608 25573, guenter.beuchle∂kit.edu
Innopool Energy Transition and Circular Economy (EuK)
Innovation pool project 1: Energy transition and circular economy: Decarbonation and flexibilization of energy intensive recycling processes
Project duration 01.01.2021 – 31.12.2023
Abstract
Using thermochemical recycling of waste concrete as an example to simulated implications on mass and energy cycles. What needs to be considered to maintain stable power grids and economic production with increasing amounts of renewables? What is the impact of decentral but energy intensive processes?
Project partners
DLR Institute of Networked Energy Systems (VE)
DLR Institute of Low-Carbon Industrial Processes (DI)
FZJ Techno-economic Systems Analysis (IEK-3)
FZJ Energy Systems Engineering (IEK-10)
FZJ Systems Analysis and Technology Evaluation (IEK-STE)
HZDR Helmholtz Institute Freiberg for Resource Technology (HIF)
KIT Institute for Automation and Applied Informatics (IAI)
Funded by
Helmholtz Program-oriented funding - Association of German Research Centers
Contact
Gourisankar Sandaka, KIT, 0721 608 22952, gourisankar.sandaka∂kit.edu
Peter Stemmermann, KIT, 0721 608 24391, peter.stemmermann∂kit.edu
ünter Beuchle, KIT, 0721 608 25573, guenter.beuchle∂kit.edu
Holiscon: Holistic Concrete
Feasibility study for holistic concrete recycling in in Baden-Württemberg
Project duration 01.01.2022 – 31.12.2022
Abstract
To evaluate recycling options for concrete in Baden-Württemberg a feasibility study is based on available data. The study should be amended by recommended actions where on going changes like concrete mixture optimization, new standards, new technologies in general are taken into account.
Project partners
KIT Institut für Massivbau (IMB)
KIT Institute for Industrial Production (IIP)
Funded by
Thinktank Industrielle Ressourcen-Strategien Baden-Württemberg
Contact
Günter Beuchle, KIT, 0721 608 25573, guenter.beuchle∂kit.edu
Ultraefficiency Demonstrator
Ultraefficiency demonstrator for decentralized processes
Project duration 01.05.2021 – 31.12.2022
Abstract
This feasibility study deals with enhancing the circulation of materials, e.g. the demolition and material recycling of external thermal insulation composite systems (ETICS) in construction. The two main fractions, organic vs. inorganic, proceed to different value chains with chemical intermediates and mineral constructions materials as products. Ideally, a complete recycling is to be achieved and will be evaluated.
Project partners
KIT Institute of Catalysis Research and Technology (IKFT)
Funded by
Thinktank Industrielle Ressourcen-Strategien Baden-Württemberg
Contact
Pallavi Reddy Yarka Reddy, KIT, 0721 608 24657, pallavi.reddy∂kit.edu
Günter Beuchle, KIT, 0721 608 25573, guenter.beuchle∂kit.edu
Urban: low CO2 Concrete
Low CO2 concrete by upcycling wastes from demolition
Project duration 01.11.2022 – 31.10.2025
Abstract
The aim of the project is the manufacturing of high quality and sustainable concretes with partial substitution of components by recycling products (RC) instead of standard cements and aggregates. Separately or in parallel substitution shall be achieved with
- low temperature belite clinker (KIT process) added to OPC based cements and
- mechanically prepared concrete fines.
A final test in the production of precast concrete parts will be based on the adapted clinker process, mix design and ratios, sulfate carrier and additives adjustment.
Project partners
Holcim Deutschland Zementwerk Höver
EHL-Standort Kruft | EHL AG | Pflastersteine, Betonstufen, Palisaden
Leibniz Universität Hannover, Institut für Baustoffe (IFB)
KIT Institute for Industrial Production (IIP)
Funded by
BMWK Federal Ministry for Economic Affairs and Climate Action
Contact
Uwe Schweike, KIT, 0721 608 26001, uwe.schweike∂kit.edu
Peter Stemmermann, KIT, 0721 608 24391, peter.stemmermann∂kit.edu
Finest: Recycling of Fines
Use and management of finest particulate anthropogenic material flows in a sustainable circular economy
Project duration 01.07.2022 – 30.06.2027
Abstract
Sub projects
Finest Micro Plastics – Finest Mineral Additives – Finest Disperse Metals – Finest Research School
Finest dust from industrial processes are to be recycled in existing or new value chains. As there is a wide variety of dusts, prominent examples like mineral dust from demolition, micro plastics and used fibers from composite materials shall be considered.
Project partners
HZDR Helmholtz-Zentrum Dresden-Rossendorf
UFZ Helmholtz-Centre for Environmental Research
Funded by
Helmholtz Sustainability Challenge
Contact
Peter Stemmermann, KIT, 0721 608 24391, peter.stemmermann∂kit.edu
CO2-Valorize: Carbonation of cementitious materials
Project duration 01.09.2022 – 31.08.2025
Abstract
CO2 will be tested to carbonate cementitious material in demolition materials or wastes. Both starting materials, reactions and reactors will be studied to set up a process model, i.e. a digital twin, a to evaluate a potential electrification.
Project partners
FLSmidth | Driving sustainable productivity
NTNU Norwegian University of Science and Technology
HZDR Helmholtz-Zentrum Dresden-Rossendorf
DTU Technical University of Denmark
Funded by
EU Horizon 2021
Contact
Peter Stemmermann, KIT, 0721 608 24391, peter.stemmermann∂kit.edu