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News Displaying items by tag: sustainability

Displaying items by tag: sustainability

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City of Langford to require low-CO2 concrete in all projects

16 March 2023

Canada: The city administration of Langford in British Columbia plans to enact regulations requiring all public and private projects to use reduced-CO2 concrete. It plans to support the rules with parallel measures affecting the design of buildings.

Victoria News has reported that the city authorities previously mandated reduced-CO2 cement for all projects in June 2022, but subsequently relaxed the regulations after only one company – Butler Concrete and Aggregates – completed the transition. Butler Concrete and Aggregates produces its reduced-CO2 concrete using slag cement supplied by Lafarge Canada.

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Prometheus Materials secures concrete masonry unit certificates for microalgae-based biocement

22 February 2023

US: 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.”

Published in Global Concrete News
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Cemex to start using electric concrete mixers supplied by Volvo Trucks at ready mixed concrete plant in Berli

13 February 2023

Germany: Mexico-based Cemex says that Sweden-based Volvo Trucks has supplied it with the world’s first fully electric and zero-emission heavy concrete mixer truck at a joint event in Berlin. The Volvo FMX electric truck can be used a full day’s work with a single top-up charge. It will start operating at the Berlin Spandau ready-mix concrete plant in Berlin in February 2023. The two companies signed a deal in 2021 to work together on electromobility solutions on mobile construction equipment and trucks, productivity solutions and uptime services.

Cemex’s chief executive officer Fernando A González said “Our partnership with Volvo has tremendous potential to contribute to the decarbonisation of our business. Rolling out our first fully electric ready-mix truck is a strong progress in that direction.”

Cemex and Volvo Group are founding members of the First Movers Coalition, a collaboration between the World Economic Forum and US Special Presidential Envoy for Climate John Kerry, for companies to make purchasing commitments that create market demand for low-carbon technologies.

Volvo Trucks’ portfolio of electric trucks ranges from 16 – 44t and covers a range of applications from city distribution, refuse handling, urban construction transports to regional haulage. Volvo Trucks is a market leader in heavy electric trucks in Europe and the US. The company’s target is that half of its total truck sales will be electric by 2030.

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AWHCL secures Mumbai construction and demolition waste management contract

10 February 2023

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."

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Cemex Zement unveils first zero-emissions concrete mixer truck

10 February 2023

Germany: Cemex Zement has unveiled a fully electric zero-emissions concrete mixer truck, the first in the industry. Sweden-based Volvo supplied the truck, an FMX model.

Mexico-based Cemex said that it is working to discover, pilot and scale technologies for emissions-free transport in the construction industry through its partnership with Volvo.

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Holcim US launches ECOPact reduced-CO2 concrete in Fargo and Twin Cities

10 February 2023

US: Holcim US has announced the launch of its ECOPact reduced-CO2 concrete in the Fargo, North Dakota, and Twin Cities, Minnesota, metropolitan areas. ECOPact products offer up to 80% reduced CO2 emissions compared with ordinary Portland cement (OPC)-based concretes, and can also integrate construction and demolition waste. Holcim US has sold the ECOPact range in Boston, Massachusetts, and Washington DC since 2020.

Holcim US' North Central regional senior vice president Randy Gaworski said "With countless developments already in the pipeline, and so much on the horizon, engineers, architects and developers are driving demand to integrate sustainable building practices throughout the region. This is an exciting opportunity to offer our customers high-quality, low-carbon products for meeting our shared commitments to sustainability and net-zero construction."

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Lotte Engineering & Construction and M-Tech develop 90% reduced-CO2 concrete

06 February 2023

South Korea: Lotte Engineering & Construction and M-Tech have successfully developed a new 90% reduced-CO2 concrete with 5% cement content. Korea Economic Daily News has reported that the product has the same strength as ordinary Portland cement (OPC)-based concrete and has good resistance to salt damage.

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SRM Institute of Science and Technology patents paving block containing waste printed circuit board

02 February 2023

India: A team at SRM Institute of Science and Technology has patented a new concrete paving block produced using fibres from waste printed circuit board (WPCB). The refuse-derived material will replace some sand and clay in the concrete mix. SRM Institute of Science and Technology said that India generates 2Mt/yr of electronic waste (e-waste), and additionally imports this type of waste from other countries. Besides being non-biodegradable, WPCB is contaminated with colouring chemicals.

The developers said "The steadily rising volume of electronic waste poses a serious hazard to human health and the environment."

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Cemex launches bio-based admixtures

13 January 2023

World: Cemex has announced the launch of new bio-based admixtures which offer CO2 emissions reductions of up to 70% compared to oil-based admixtures in its Asian, European and Middle Eastern markets. The range includes 10% reduced-CO2 IsoPlast Bio, 20 - 30% reduced-CO2 IsoFlex Bio plasticisers and superplasticisers and 50% reduced-CO2 IsoFlow Bio high-performance superplasticiser technology, as well as CO2-reducing IsoMill Bio grinding aids. The products will subsequently become available in other markets during 2023.

CEO Fernando González said “Innovation is at the core of our efforts to become a carbon neutral company and foster a more circular building materials industry." He added "Innovative admixtures aim to enhance concrete's sustainable attributes for our customers further.”

Published in Global Concrete News
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Lafarge Canada and TransAlta to collaborate on fly ash processing

11 January 2023

Canada: Lafarge Canada has signed an agreement with power provider TransAlta to recover and process fly ash from the site of the latter's decommissioned Edmonton coal-fired power plant. The project will use Ash-TEK's Ponded Ash Beneficiation System (PABS) fly ash beneficiation technology. The processed ash will then be able to replace up to 25% of cement in low-CO2 concrete production.

TransAlta previously secured with Lafarge Canada for the supply of renewable power to its Exshaw, Alberta, cement plant in February 2022.

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