Cement News tagged under: alternative raw materials

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CEMEX sets "most ambitious" decarbonisation goals in the industry

17 November 2022, Published under Cement News

CEMEX has a “promising medium term outlook”, according to Fernando A González, chief executive officer. Speaking at the company’s 2022 CEMEX Day on 16 November, Mr González said the markets in which the company operates are seeing strong demographics and urbanisation trends, along with “pressing needs for more resilient and sustainable infrastructure, buildings and homes”. With 10Mta of cement capacity additions in the pipeline, 4.4Mta of which is being rolled out in 2022-23 in Mexico, ...

Cementos Molins introduces waste raw materials to production line

22 September 2022, Published under Cement News

Cementos Molins has invested in a new dispenser for one of its raw mills that allows the use of 95,000tpa of alternative raw materials with an equivalent saving of materials from quarries. Thanks to the new alternative raw materials manufactured by sister company Promsa, Cementos Molins can take advantage of non-hazardous waste from other industrial activities while reduce its consumption of natural resources in the manufacture of cement.  The Spanish cement producer did not detail at whi...

Sludge co-processing progress and prospects

16 August 2022, Published under Cement News

China has significant potential for the development of cement kiln co-processing technologies of municipal sludge and other solid wastes. In this article, a dry sludge disposal project at a cement plant in Guangdong, China, provides an example of the impact of kiln co-processing on plant operations and air emissions, and puts forward the development direction of this technology in the country.  By Hui Li, Jiazhuang Hui and Liang Zhao, Tianjin Cement Industry Design and Research Institute Co ...

Green growth avenues

05 April 2022, Published under Cement News

While decarbonising the cement and concrete industry will play a pivotal role in addressing climate change, producers in these sectors cannot go it alone. By outlining green growth avenues in the cement ecosystem, McKinsey & Company explains why collaboration across the value chain is vital to decarbonising the built environment – and that it needs to start today. By Thomas Czigler, Eddie Elizondo, Sebastian Reiter and Patrick Schulze, McKinsey & Co. Figure 1: with decarbonisation bec...

Philippine government urges cement producers to use plastic waste

16 March 2022, Published under Cement News

To help reduce the country’s solid waste generation by at least 40 per cent Philippine Department of Environment and Natural Resources (DENR) has requested cement producers to explore ways to use plastic waste as a raw material, reports The Manila Times. "When all these cement plants will participate, we can dramatically reduce the volume of plastic waste which will be now regarded as raw materials of the cement plants in their current processing," said DENR-EMB Director William Cuñado, ci...

New material research aims to reduce the environmental impact of cement and steel industries

22 December 2021, Published under Cement News

Researchers from the Department of Materials Science and Engineering at the University of Sheffield are developing processes and technologies for the sustainable manufacture of cement, by incorporating iron-rich by-products from the steel industry.   The research programme, which starts in June 2022, will be known as 'FeRICH: developing iron-rich cement for the valorisation and upcycling of steel slags'. It will look at ways to upcycle the by-products of the steel industry, leading to the pr...

Spain’s cement sector recovers 57Mt of waste in 15 years

26 November 2021, Published under Cement News

The Spanish cement industry has recovered 57Mt of waste from 88 sectors between 2004-19, reports the Fundación CEMA in collaboration with Institut Cerdà. This has prevented the release of 1Mt of CO2 emissions to the atmosphere and savings of EUR115m by not sending the waste to landfills. The report confirms that the optimisation of synergies has resulted in the cement sector becoming one of the largest recyclers of mineral waste in Spain and a leader in energy recovery. It has injected alm...

Belterra clay could replace limestone in cement production

11 October 2021, Published under Cement News

In a study, funded partly by the Brazilian Ministry of Education, Martin Luther University Halle-Wittenberg (MLU), Germany, and Brazil’s University of Pará, have found that CO2 emissions can be reduced during cement production by up to two-thirds by adding Belterra clay, unused overburden from bauxite mining. "This layer of clay can be up to 30 metres thick and covers the bauxite deposits in the tropical regions of the earth, for example in the Amazon basin," explains Professor Herbert Pöl...

Vicat’s SeRaMCo contribution

27 April 2021, Published under Cement News

France-based multinational Vicat group has been contributing to the European SeRaMCo (Secondary Raw Materials for Concrete Precast Products) project, aimed at reducing the carbon footprint of the construction sector by finding beneficial uses for inert waste from demolition sites. The company has been undertaking industrial trials to incorporate fines derived from demolition concrete as a raw material for cement production – an initiative that forms one aspect of Vicat’s circular economy dri...

Separation Technologies starts new fly ash reclamation process

24 February 2021, Published under Cement News

Separation Technologies (Titan Cement group) has commissioned the world's first industrial-scale fly ash drying and electrostatic separation plant to reclaim fly ash from nearby coal ash basins.   Located at Talen Energy's Brunner Island Steam Electric Station, the pilot facility combines Separation Technologies’ new proprietary drying and screening system and electrostatic separation for removing unburned carbon from fly ash for use in concrete construction. Removing the unburned car...