Displaying items by tag: Research

Japan: A team at the University of Tokyo has developed cement-free alternative concrete from ultra-fine sand and fly ash. NHK has reported that the process uses recyclable alcohols and has lower CO₂ emissions compared to concrete production using ordinary Portland cement. Research with industrial partners into possible construction sector applications is underway. Partnerships with Japanese ready-mixed concrete producers are reportedly also under discussion.

Further information is available from Yuzo Tobisaka, an independent Japanese consultant in the cement and ready-mixed concrete industry, at This email address is being protected from spambots. You need JavaScript enabled to view it..

World: The Global Cement and Concrete Association (GCCA) has named the 15 anticipated deliverers of low-CO₂ cement and concrete production shortlisted for participation in its second Innovandi Open Challenge. The association chose the start-ups based on their potential to deliver CO₂ emissions reduction in the global cement and concrete sector in line with its Concrete Future 2050 Net Zero Roadmap. The applicants are presenting their pitches to GCCA members on 30 June 2023. All those accepted will gain access to members' plants, labs, networks and expertise. The following start-ups made the Innovandi Open Challenge 2023 shortlist:

GCCA cement director and innovation lead Claude Loréa said “We received more than 70 quality applications, so drawing up a shortlist was challenging." Loréa continued "Our essential industry needs something easily scalable and affordable. Those start-ups on the list demonstrated the most potential, and we look forward to hearing more about their ideas. But we’ll also be keeping in touch with other start-ups who didn’t make this year’s shortlist, with future projects in mind.”

World: Market Research Future has forecast a composite annual growth rate (CAGR) of 5.3% between 2022 and 2030. This would result in a market value of US$505bn in 2030, compared with US$335bn in 2022. The report added that the rate of new construction projects is increasing across all regions.

US: The government has awarded a US$3.24m grant to Washington State University (WSU) for its research towards the development of reduced-CO₂ cements. The research is investigating new formulations, in combination with novel technologies aimed at eliminating CO₂ emissions. WSU is one of 40 recipients of a funding pot worth US$135m.

Energy Secretary Jennifer Granholm said "America’s industrial sector serves as the engine of the US economy, producing many of the products we rely on every day, but it also produces a significant amount of the nation’s carbon emissions. These projects funded by President Biden’s Investing in American agenda will slash industrial emissions and accelerate next-generation technologies for a clean energy future that’s made in America.”

Europe/India: Finland-based Betolar has secured EU-wide and Indian patents for a new waste-based alternative concrete produced without cement and capable of storing energy. Betolar said that the material, which is already patented in Finland, is especially suited for use in renewable energy infrastructure, where it can provide a storage solution for dealing with short-term peaks. Chief commercial officer Ville Voipio said that the company will now seek to establish a partnership for commercialisation of its new alternative building material.

Betolar produces and markets the Geoprime additive used to produce cement-free concrete from supplementary cementitious materials, including ground granulated blast furnace slag (GGBFS), in regions that include India and the EU.

Italy: Italcementi, part of Heidelberg Materials, has filed a patent application for a titanium dioxide-based cementitious material. The Patent Office Journal has reported that the material consists of titanium dioxide (TiO2) imbued with carbon dopants. This is produced by irradiating the TiO₂ in the presence of an inert gas and an organic compound.

India: Adani Cement subsidiaries ACC and Ambuja Cements have launched the Cement and Concrete Research and Development Facility at Kalamboli in Maharashtra. Dion News Service has reported that the focus of the centre will lie in product development, productivity enhancement and increasing the efficiency of cement and concrete production.

Adani Cement CEO Ajay Kapur said "Our new research and development facility is our reinforcement towards our collective commitment to pushing boundaries, driving innovation, and addressing industry challenges."

India: More than 75 representatives from academic institutions and businesses from across the world are attending the Innovandi Global Cement and Concrete Research Network (GCCRN) Spring Week taking place in New Delhi. The GCCRN has brought together 450 researchers and scientists from more than 40 universities and institutions, including the EPFL in Switzerland, South East University in China, University of Toronto in Canada, the Indian Institute of Technology Delhi, the University of Cape Town, Imperial College London in the UK, as well as 35 cement and concrete manufacturers and their suppliers. The focus of the conference is to work towards reaching net-zero CO₂ concrete production, including sourcing and improving alternatives to clinker, work on calcined clays, concrete recycling – plus its carbonation and durability - as well as kiln electrification and carbon capture, usage and storage (CCUS).

Claude Loréa, the Innovation and ESG Director at the Global Cement and Concrete Association (GCCA), said “Global Innovation collaboration and research will help unlock our industry’s decarbonisation mission. Spring Week is the key date in the GCCA’s Innovandi calendar. It provides an opportunity for our partners to meet face-to-face, exchange ideas, run workshops, and measure progress on key research projects in line with our industry’s 2050 Net Zero Roadmap. Our industry and our key partners are stepping up to the challenge and it’s fantastic to see the progress on some of the 75 PhD candidates supported by the GCCRN.”

The event is also updating attendees about progress made by projects involved with the Innovandi Open Challenge. This initiative matches start-ups with GCCA member companies from around the world, to help scale up research and technical innovation. Two of the six start-ups selected in 2022 at the first ever Innovandi Open Challenge, which focused mainly on carbon capture and utilisation, have already gone to pilot stage. Applications for the second challenge, which focuses on low carbon concrete, close on 15 May 2023.

The GCCRN was set up by the GCCA, a lobbying group representing more than 80% of the world’s cement and concrete manufacturers outside of China. All GCCA member companies are committed to decarbonising the industry by the mid-21st Century, in line with the GCCA’s Concrete Future 2050 Net Zero Roadmap.

Malaysia: YTL Cement has signed a memorandum of understanding (MOU) with the Construction Research Institute of Malaysia (CREAM) to support the transition of the local construction industry to sustainable construction practices. Under the deal, YTL Cement will also contribute to the Construction Industry Development Board’s (CIDB) goals by rolling out human resource development programmes, research and development initiatives.

As part of the MOU, YTL and the CIDB will jointly design training programmes for young adults to be certified as concrete technicians and develop the training syllabus for accreditation programmes of qualified personnel in operations. It is hoped that this will assist in attracting, retaining and growing skilled workers in the construction industry. CREAM will work with YTL Cement’s team of experts to conduct research and development on lower embodied carbon alternatives in materials and construction methods. CIDB and YTL Cement will also work together to increase awareness on the embodied carbon of the construction sector by providing channels for discussions and knowledge transfer among industry practitioners and experts.

US: A team from the Massachusetts Institute of Technology (MIT) has developed a new method to sequester CO₂ in concrete before curing it. The method is based on the addition of bicarbonate of soda, which reacts with cement to produce a calcium carbonate-calcium silicone hydrate composite. The Journal of Engineering has reported that the method adds the benefits of CO₂ mineralisation during production and casting, doubling the mechanical performance of early-stage concrete. It also eliminates the effects of carbonation reactions in cured concrete, which weaken the concrete by lowering its alkalinity, which accelerates the corrosion of rebar. The method has the potential to sequester 15% of CO₂ emissions from cement production.

The team said “The pre-curing capacity of concrete to sequester CO₂ has been largely underestimated and underutilised. Our new discovery could further be combined with other recent innovations in the development of lower carbon footprint concrete admixtures to provide much greener, and even carbon-negative, construction materials.”