Displaying items by tag: concrete
Cemex realigns climate goals to Science-Based Targets Initiative’s Well Below 2° scenario
25 June 2021Mexico: Cemex has launched a new brace of CO2 emissions reduction targets. The group is now targeting CO2 emissions below 475kg/t of cement and 165kg/m3 of concrete by 2030. These represent decreases of 40% and 35% respectively compared to 1990 levels. The group plans to invest US$60m/yr in efforts to meet its 2030 targets. It had previously targeted CO2 emissions below 520kg/t of cement by 2030. It now aims to achieve the previous target by 2025. The group says it intends to reach the new targets through the use of alternative fuels with high biomass content, hydrogen injection, low temperature and low CO2 clinker, decarbonated raw materials, optimisation of the kilns’ heat consumption and the reduction of clinker factor through the higher utilisation of blended cements in the market.
Chief executive officer Fernando Gonzalez said, “Climate action is the biggest challenge of our times, and Cemex is taking decisive action to address it. We commit to continue leading the industry in climate action.”
Kuwait: The Ministry of Commerce and Industry has banned all export and re-export of cement and other construction materials from Kuwait. However, it has allowed individual citizens to import construction materials for personal use. The ban is part of a raft of a measures intended to stem the increase in building material prices. The Kuwait News Agency has reported that cement prices rose after the resurgence of the coronavirus outbreak in India suspended Indian imports.
The ministry subsidises building materials including cement and concrete. In May 2021 it paid US$45m towards such subsidies. It continues to monitor the cement market and cement production for ‘unlawful’ price rises.
Kuwait’s cement production capacity is 9.0Mt/yr, while 2020 consumption was 6.0Mt.
Malawi: Switzerland-based Holcim says that the world’s first 3D printed school has opened in Salima district’s Kalonga village after a build time of just 18 hours. The EcoPact green concrete producer says the building provides a much-needed thirteenth school in Yambe, which still needs three more. Holcim’s green construction subsidiary 14Trees estimates that its 3D printing technology can meet Malawi’s school building needs by 2031, compared to after 2090 by conventional methods. The group said that the school proves that “3D printing can play a key role in bridging our world’s education infrastructure gap” with high-quality, sustainable, affordable and fast-paced construction, at scale.
Europe, Middle East and Africa regional head Miljan Gutovic said, “I am very proud of how our colleagues at 14Trees have deployed cutting-edge 3D printing technology to solve such an essential infrastructure need. Now that we’ve proven the concept in Malawi, we look forward to scaling up this technology across the broader region, with projects already in the pipeline in Kenya and Zimbabwe.”
JSW Cement enters the concrete business with first ready-mixed concrete plant in Mumbai
22 June 2021India: JSW Cement has launched its first commercial ready-mix concrete plant at Chembur in Mumbai, Maharashtra. The plant has a capacity of 120m3/hr across two production lines. It will serve construction in south and central Mumbai. The technology for the plant was supplied by Germany-based Schwing Stetter. The company plans to establish three further batching plants in Mumbai, covering Navi Mumbai, Thane and western Mumbai.
“JSW Concrete was successfully piloted at our captive plants at Dolvi and Vijaynagar and used in the expansion projects of JSW Steel. The experience gained from these projects gave us enough confidence to offer this unique concrete product to our large project customers,” said TN Viswanathan, Vice President of JSW Cement.
Lafarge Polska launches Aggneo recycled aggregate
22 June 2021Poland: Switzerland-based LafargeHolcim subsidiary Lafarge Polska has launched Aggneo, a recycled aggregate recycled from demolition-sourced concrete. The producer says that Aggneo offers high consistency and a lower density than mined aggregates, resulting in material savings. Besides reducing waste, the product also lowers the carbon footprint of delivery by 66%, according to the company. The building materials producer aims to manufacture 1Mt/yr of recycled aggregated by 2030.
Czech Public: Ukraine-based Betonmash has fulfilled an order for a Granit-42 ready-mix concrete batching plant from a customer in the Czech Republic. The 42m3/hr-capacity plant consists of a 750l rotary mixer and 75t hopper. Italy-based Bonfiglioli supplies the Grant-42’s drives, Italy-based Camozzi supplies its pneumatic components and Italy-based WAM supplies its screw conveyors. It uses sensors produced by Netherlands-based Zemic.
Egypt: Saudi Arabian-based Mohammed Hassan Al Naqool Sons has started pilot production at its Cement Industries subsidiary based in El Alamein. The project has an investment of around US$5m. It will manufacture cement-based products, including blocks and concrete. Commercial production at the site is expected to start in the third quarter of 2021.
UK: SigmaRoc intends to offer a cement-free alternative for every product in its precast concrete portfolio from January 2022. The producer claims it is the only company to do this. The change will effect products made by its Product Group including Allen Concrete, CCP Building Products and Poundfield Precast. The move follows the launch of its Ordinary Portland Cement free Greenbloc product in February 2021.
Managing director Michael Roddy said, “Greenbloc sets the bar for bringing a cement-free alternative to a traditional building material into mainstream use, but it was only ever the start of our low-carbon journey.” He added “The benefits of using cement as a building material are undisputed from an application perspective, however the carbon required in the manufacturing process cannot be ignored. Our aim is simple. The market is changing and understands the need to acknowledge, address and action a tangible approach to decarbonisation. We want to give architects, contractors and specifiers the choice of using an ultra-low carbon cement-free alternative to precast cementitious products.”
Canada: Testing specialist Giatec has launched SmartMix, a web-based software product for concrete ingredient optimisation. It is intended to help concrete users lower their cement construction for jobs. The supplier estimates that the tool could lower the CO2 emissions of concrete production by 400Mt/yr, the equivalent carbon footprint of 110m cars.
Head of research and development Andrew Fahim said, “Artificial intelligence (AI), machine-learning algorithms and advanced analytics on construction jobsites are going to pave the path forward for our industry to meet increasing infrastructure demands. I am proud to provide contractors and producers AI tools to make impactful decisions and get ahead of the competition by bringing more value to their customers while reducing the carbon impact of their products.”
India: LafargeHoclim subsidiary Ambuja Cement has launched Ambuja Cool Walls, a product consisting of its aerated pre-cast concrete blocks. The producer says that Cool Walls have improved strength compared to walls made of brick. They also increase buildings’ insulation, according to the producer.