Global Cement News

UK: Karbonite UK has developed a new supplementary cementitious material consisting of mineral feedstock, geopolymers and waste biomass. The process also involves CO₂ sequestration and liquid-infused CO₂ absorption within the mineral structure. The material, called Karbonite, is activated at 750 – 850°C, releasing water, which is captured for recycling. Its CO2 emissions are 2.7kg/t, according to Karbonite UK. The developer says that Karbonite ground with 50% clinker yields a cement of equal compressive strength to ordinary Portland cement (OPC).

Karbonite UK is currently preparing a final report on the product for a major cement producer.

Managing director Rajeev Sood said “Karbonite offers a wealth of potential to an industry targeting net zero. We are excited to talk to cement and concrete producers about how they could integrate Karbonite technology into their existing process.”

Uzbekistan: QuvasoyCement has installed Denair Energy Saving Technology (Shanghai)’s DV 315 compressors at its Fergana cement plant. The cement producer says that the new compressors increase performance by 95% compared to previous equipment. It predicts cost savings of US$25,100/yr as a result of the upgrade.

Austria: RHI Magnesita’s customers can now rely on Environmental Indicators on all of its products’ Technical Data Sheets to check their CO₂ emissions. The indicators state the CO₂ equivalent emissions per tonne of each product. The supplier calculated the figures in line with ISO standards under on-going external supervision.

Chief sustainability officer Gustavo Franco said “One of RHI Magnesita’s main targets is to significantly reduce emissions over the next few decades, with the long-term goal of achieving net-zero operations in all areas of the company. It is clear that a solid basis for sustainable decisions and developments can only be achieved by creating a valid audited database.”

Argentina: The National Commission for Competition Defence (CNDC) has recommended that the Asociación de Fabricantes de Cemento Portland (AFCP) stop sharing information on cement production and deliveries on a provincial basis that is less than 12 months old. Following an investigation into the cement sector the competition body expressed concern about the “exchange of information" between the main local cement producers, according to the Ámbito Financiero newspaper. An official investigation into collusion between the companies that ran from 2016 to 2021 found that they carried out anti-competitive behaviour that led to costs for construction being inflated by US$180m. It concluded that the sector had a, “high degree of concentration, high barriers to entry and reduced competitive dynamics.” The cement industry was previously fined in 2005 when it was found to have acted as a cartel for 20 years from the 1980s.

India: Gujarat Sidhee Cement has stopped its kiln for a temporary period of 15 – 20 days due to high clinker inventory levels. Cement grinding and despatch will continue unabated. The cement producer operates an integrated plant at Sidheegram in Gujarat.