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Displaying items by tag: Alternative raw materials
Finland: VTT Technical Research Centre subsidiary Carbonaide has concluded its seed funding round, having raised funds worth Euro1.8m. Lakan Betoni, which produces precast and ready-mix concrete, led the funding, along with utilities provider Vantaa Energy. Carbonaide will use the funds to build an industrial pilot plant for its carbon neutral precast concrete product at an existing precast concrete plant in Hollola. The plant will bind captured CO2 in the product at atmospheric pressure. The process generates 50% lower CO2 emissions than precast concrete production using ordinary Portland cement (OPC). Suitable raw materials include ground granulated blast furnace slag (GGBFS), green liquor dregs and bio-ash. In trial production, the use of GGBFS gave Carbonaide's concrete a negative carbon footprint of -60kg/m3.
Other sources of loans and in-kind contributions included Finnish state innovation fund Business Finland.
Vicat and Materrup launch raw clay cement joint venture
24 March 2023France: Vicat and Materrup have formed a joint venture to industrialise production and accelerate marketing of Materrup's Clay Cement 1 (MCC1) raw clay cement. The Le Moniteur newspaper has reported that the technology is based on a precursor and activator mixture which removes the need for calcination of the clay. Materrup said that this halves MCC1 cement's CO2 emissions compared with ordinary Portland cement (OPC).
The partners say that clay has better long-term feasibility than other alternative raw materials for cement production, because global reserves are currently 2Tnt.
Progressive Planet to supply PozGlass to Lafarge Canada
16 March 2023Canada: Progressive Planet has secured a contract to supply its PozGlass recycled glass-based supplementary cementitious material (SCM) to Lafarge Canada. The cement producer says that it will test the commercial viability of all PozGlass produced at Progressive Planet's Kamloops pilot plant in British Columbia, once the plant commences PozGlass production in 2024.
India: Dalmia Cement has awarded a contract for the supply of fly ash and other industrial waste to Vedanta Aluminium. Under the deal, Vedanta Aluminium will supply fly ash for use at Dalmia Cement’s cement plants across Odisha, Chhattisgarh, Meghalaya and Assam. It will deliver spent pot linings to the producer’s Rajgangpur cement plant in Odisha. The fly ash contract will remain in effect until 2028 and the pot lining contract until 2026.
Vedanta chief executive officer Sunil Gupta said “Strategic collaborations such as this will provide multiple benefits in terms of enhanced quality, sustainability and cost benefits to cement manufacturing, while helping us in gainful waste management. Our waste-to-wealth initiatives are designed to develop thriving value-chains for converting our by-products into resources for complementary industries.”
GCCA launches second Innovandi Open Challenge
15 March 2023UK: The Global Cement & Concrete Association (GCCA) held an online launch for its second Innovandi Open Challenge on 14 March 2023. The global challenge matches start-up companies with some of the world’s leading cement and concrete manufacturers, which operate in almost every country across the world, to work on initiatives to cut emissions and pioneer environmental change across the industry. The launch follows the success of the first ever Innovandi Open Challenge in 2022, which saw cement companies partnering with six start-ups, with a strong focus on carbon capture and utilisation projects.
This time around, applicants are being asked to work on the development of new materials and ingredients for low carbon concrete – a major step towards the goal of net zero concrete. Alternative materials, including construction and demolition waste, can result in far lower CO2 emissions than traditional concrete, as well as reduce the need to use virgin raw materials. The applications phase will last until mid-May 2023.
Thomas Guillot, CEO of the GCCA, said “We’re calling on the best and the brightest from around the world to join us in the urgent fight to limit global warming and help towards delivering the great prize of net zero concrete. If you are a start-up from Austria to Australia, from Brazil to Bangladesh, with an innovative idea or technology, then we want to hear from you.”
Those companies that are accepted for this year’s Innovandi Open Challenge will gain unique access to industry plants, laboratories, key networks and the expertise and infrastructure of the GCCA’s 40 members from around the world. They will also receive guidance from the GCCA and its members to help them with the development of new technology and business cases.
Claude Loréa, GCCA cement director and innovation lead, said “We’ve already seen some remarkable progress from those start-ups who’ve been working with our members on the first Innovandi Open Challenge, with several projects already in the pilot stage. This year’s theme, low carbon concrete, is equally challenging. To succeed, we need products which are affordable, scalable and easily adopted. Good luck to all this year’s applicants. We look forward to working with those selected.”
Bogala Graphite launches graphene oxide cement additive
23 February 2023Sri Lanka: Bogala Graphite has launched its new cement-strengthening graphene oxide additive. Daily FT News has reported that potential investors will be able to discuss the new technology with Bogala Graphite at the forthcoming Industry 4.0 and Industry 5.0 exhibition later in February 2023.
Prometheus Materials secures concrete masonry unit certificates for microalgae-based biocement
22 February 2023US: Prometheus Materials’ microalgae-based biocement has secured certification for use in concrete masonry unit (CMU) mixes. The cement now holds an ASTM C129 certificate for use in non-loadbearing CMUs and an ASTM C90 certificate for use in loadbearing CMUs. Prometheus Materials’ biocement produces concrete with comparable or superior mechanical, physical and thermal properties to ordinary Portland cement (OPC)-based concrete. It offers little-to-no CO2 emissions and 95% of water used in production is recycled.
Prometheus Materials CEO Loren Burnett said “We are thrilled to have achieved these two foundational certifications as we proceed in full force with our goal of decarbonising construction. Prometheus Materials’ product is poised to change the future of construction, converting one of the most carbon-polluting industries to a low-carbon – and one day net-zero carbon – reality.”
India: Antony Waste Handling Cell Limited (AWHCL) has won a US$124m contract for construction and demolition waste management services in Mumbai. Press Trust of India News has reported that the contract covers nine municipal subdivisions of the city and will last until 2044. AWHCL said that the contract will enable it to develop the circularity of cement and concrete within the local economy. It expects to commission 600t/day-worth of waste processing capacity by March 2023. The waste management company expects a recovery rate of 25% recyclable materials.
AWHCL chairman and managing director Jose Jacob said "This sub-segment of solid waste management provides tremendous growth opportunities given the number of infrastructure development projects underway, and the government's push to accelerate the economic growth with infrastructure being one of the important growth pillars."
Hallett Construction Materials orders Christian Pfeiffer ball mill
03 February 2023Australia: Germany-based Christian Pfeiffer has received an order for a grinding circuit comprising a 16.3m-long ball mill and a QDK T 250-Z type separator from Hallett Construction Materials. The circuit will have a capacity of 84t/hr, according to the supplier. Hallett Construction Materials plans to use the equipment at its upcoming Port Augusta slag cement grinding plant. The plant is scheduled for commissioning in January 2024.
Hallett Construction Materials chief executive officer Kane Salisbury said, “For us, the sustainability of the plant is the highest priority. That’s why we manufacture cement containing 100% slag.” Salisbury added “The Christian Pfeiffer process experts convinced us that the ball mill, in combination with a high efficiency separator, is the best system to serve our requirements.”
Unacem Perú to 'significantly increase' cement capacity
23 January 2023Peru: Unacem Perú plans to 'significantly increase' its cement production capacity 'in the medium-term future.' Prior to that, the producer will invest US$130m in capital expenditure during 2023, double what it invested in 2022. The investments will go towards slightly expanding the producer's capacity from 8.3Mt/yr and increasing alternative raw materials use in its cement production, including pozzolan and ground granulated blast furnace slag (GGBFS). Additionally, it will open its new Manchay limestone quarry in Pachacámac in early 2023.
Unacem said that it increased its cement sales 'unexpectedly' during 2022. It operated at 85 - 90% capacity utilisation, and continued to export clinker.