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Displaying items by tag: construction
Master Builders Solutions to supply 11,000t of concrete admixtures for Fehmarnbelt Tunnel project
03 July 2023Denmark/Germany: US-based Master Builders Solutions has won a contract to supply admixtures for use in the Fehmarnbelt Tunnel project. The project will build a 17.6km immersed tunnel between the islands of Fehmarn in Germany and Lolland in Denmark. It will directly connect Germany via a double-track railway and four-lane motorway to eastern Denmark and the Scandinavian Peninsula beyond. This will reduce rail travel time between Hamburg in Germany and Copenhagen in Denmark by 35% to 3 hours 15 minutes. The tunnel will consist of 79 standard 217m-long precast elements, and a further ten 85.7m-long service elements. The latter include a subfloor sections in addition to the tunnel's four tubes. Master Builders Solutions says that it will supply 11,000t of admixture to produce a total 3Mm3 of concrete required for the project. The supplier said that its admixtures will help concrete to meet specifications in line with the Fehmarnbelt Tunnel's projected 120-year lifespan. Master Builders Solutions has collaborated with contractor FLC to develop a new MasterEase superplasticiser for use in the project.
Master Builders Solutions Denmark technical manager Jens Qvist said "This has been an incredibly exciting process, requiring very close collaboration with both our own European colleagues and FLC’s Danish and international concrete experts."
US: Eco Material Technologies has supplied its PozzoCEM Vite clinker-free cement to 3D printing construction firm Hive 3D for its The Casitas @ The Halles project in Texas. PozzoCEM Vite cement has 92% lower CO2 emissions than ordinary Portland cement (OPC). The producer said that concrete produced using PozzoCEM Vite is also more durable and longer lasting than OPC-based concrete. Eco Material Technologies and Hive 3D developed a custom batching system to mix PozzoCEM Vite cement and local Texan sand for use in the project. Eco Material Technologies said that the system created a significant cost reduction compared with other available printable mortar technologies.
Eco Material Technologies recently launched a new 99% reduced CO2 PozzoCEM formulation, which it expects to use in future projects with Hive 3D. Other reduced-CO2 cements produced by Eco Material Technologies include its PozzoSlag 50% ground granulated blast furnace slag cement. In total, Eco Material Technologies has supplied 1Mt of reduced-CO2 cements across 4000 construction sites since 2012. It said that it expects to announce multiple new infrastructure projects and strategic partnerships later in 2023.
Eco Material Technologies' CEO Grant Quasha said “Hive 3D’s commitment to building the first 100% cement replacement 3D printed homes aligns with our goal of transitioning the construction industry away from using materials that generate approximately 8% of the world’s carbon emissions each year."
India: Nuvoco Vistas has commissioned its new Vizag ready-mixed concrete batching plant in Andhra Pradesh. The facility will produce the company's Concreto and Artiste general purpose and decorative ready-mix concretes, as well as its InstaMix bagged ready-mix concrete. The cement company says that the new concrete plant is 'strategically located' to contribute to the transformation of the region into a hub for smart cities and industry. Projects Today news has reported that the Vizag batching plant is the second opened by the company, after another in Coimbatore, Tamil Nadu.
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.
Namibia: Ohorongo Cement Namibia has supplied 3000m3 of cement to the site of NamPower's upcoming Sekelduin power plant in Swakopmund. Ohorongo Cement used 730t of its CEMIR cement, which contains 30% fly ash, combined with an additional 30% fly ash in the concrete mixer. The producer said that the extra ash increases the finished product's density, reducing permeability.
Ohorongo Cement said that the project is 'near completion,' having begun in mid-2021.
LafargeHolcim Egypt's ECOPlanet green cement reduces CO2 emissions from Alamein Downtown Towers project
09 January 2023Egypt: LafargeHolcim Egypt supplied 8200t of its ECOPlanet reduced-CO2 cement for construction of Alamein Downtown Towers in Alamein City. The producer said that the cement reduced the project's carbon footprint by 45% compared to ordinary Portland cement (OPC). The government contracted China-based China State Construction Engineering Corporation for construction of the five-tower development. Three of the buildings will be residential, while the remaining two will house business and events facilities.
Cemex opens Tunjuelo Circularity Centre
13 December 2022Colombia: Cemex has announced the launch of the Tunjuelo Circularity Centre at its former Tunjuelo quarry near Bogotá. Having rebuilt parts of the 50m-deep quarry with demolition waste, Cemex will now work on its ecological restoration, while continuing to receive excavation waste for reconstruction of the ground. It will meanwhile divert demolition waste deliveries for recycling in aggregate production. In Bogotá, Cemex has launched an initiative for urban construction partnerships in collaboration with local authorities. It will also collect municipal solid waste (MSW) there for use in its cement production and collect its used plastic cement bags for recycling in building materials production.
Cemex’s Colombia and Peru president Alejandro Ramírez said "This is a pioneering model for Cemex in the construction materials industry globally, which we aim to position as a benchmark for circularity within the sustainable development of large cities in Colombia and the world. A piece of land that supplied materials for Bogotá's development for decades has received construction and demolition waste for its redevelopment and was transformed into a green area to the south of the city, an epicenter of the circular economy and an opportunity for urban development for the capital city of Colombia."
Lafarge Canada donates ECOPact concrete to Pic Mobert First Nation Reserve recreation ground
24 November 2022Canada: Lafarge Canada has made a donation of US$37,500-worth of its ECOPact reduced-CO2 concrete to the site of an upcoming recreation ground in Pic Mobert First Nation Reserve, Ontario. The US$562,000-facility will serve 1000 local people.
Lafarge Canada's Hemlo ready-mix concrete plant manager Jared Paris said "For over 20 years, Lafarge's Hemlo plant has been operating and servicing the traditional lands of the Pic Mobert First Nation, supplying concrete for new homes, a water treatment plant and many other projects. The US$562,000 project on the Pic Mobert First Nation reserve is being sponsored by a number of companies, including Lafarge Canada customers, showing their support for this indigenous community."
US: The Global Cement and Concrete Association (GCCA) has signed an international partnership agreement with the American Concrete Institute (ACI). Under the agreement, the partners will collaboratively develop and disseminate information on concrete production and its use in construction, with a view to advancing best practices in sustainability.
The ACI said "ACI cooperates closely with our international partners, benefitting everyone in the global concrete community. ACI looks forward to working with the GCCA towards a future where everyone has the knowledge needed to use the latest concrete technologies effectively to meet the demands of a changing world."
Pelješac Bridge project uses Cemex's Vertua reduced-CO2 cement
21 October 2022Croatia: Cemex supplied 37,000t of cement for construction of the new Pelješac Bridge on the Dalmatian coast. Cemex says that the 2.4km-long bridge has connected Southern Croatia to the rest of the country, eliminating the need to cross in and out of Croatia over an international border when travelling by land. Almost all of the cement used in the project was Cemex's Vertua brand reduced-CO2 cement product.
Cemex's Europe, Middle East, Africa and Asia president Sergio Menendez said “Cemex has been a proud contributor to the development of Croatia, and we are very pleased to participate in one of the largest infrastructure projects in the region. Our Vertua products are designed to meet society’s demand for resilient and long-lasting buildings and infrastructure, built with a lower carbon footprint.”