Cement News tagged under: Alternative raw materials

RSS feed

Fly ash and pozzolanas

18 January 2021, Published under Cement News

The drive for alternative raw materials has put the spotlight on fly ash and pozzolanas. However, their use in cement has been around for some time. This month Arthur Harrisson looks at their origin and performance in cement. Pumice rock A pozzolana is a material which, when mixed with a hydraulic cement, will react with the lime from the cement and water to produce cementitious hydration products of its own. The most familiar types of pozzolanic materials in common use are low-...

Canada’s low-carbon transition

14 January 2021, Published under Cement News

While the coronavirus pandemic has impacted cement demand in Canada, the country’s cement industry continues to work towards a low-carbon cement sector. ICR speaks with Adam Auer, environment and sustainability vice president of the Cement Association of Canada, about the industry’s drive towards decarbonisation. Adam Auer, Cement Association of Canada, highlights the steps taken by the industry towards a low-carbon cement sector Canada’s cement market started 2020 ...

Mizu’s modernisation moves

23 November 2020, Published under Cement News

Mizu Cimentos Especiais, Brazil’s fourth-largest cement producer, continues to invest in its production base employing sustainable production technologies. Part of the country’s business conglomerate Polimix, the cement producer also forges partnerships with other Polimix subsidiaries to support the production of durable concrete. By Mizu Cimentos Especiais, Brazil. Mizu Cimentos Especiais operates 7Mta of cement production capacity in Brazil Mizu Cimentos Especiais has 7Mta of ...

Lafarge Canada, Geocycle Canada and Rio Tinto partner for circular economy project

19 October 2020, Published under Cement News

Lafarge Canada, Geocycle Canada and Rio Tinto, North America’s only primary aluminium producer, are working together to reuse waste from the aluminium smelting process to make cement. The circular economy project aims to reduce the need to extract new raw materials and create more value from waste. Geocycle Canada, part of Lafarge Canada, and Rio Tinto have developed a new product, Alextra, made from spent pot liners that would otherwise be sent to landfill. Alextra is the result of years ...

NTPC begins the bulk supply of fly ash from new unit

17 August 2020, Published under Cement News

NTPC, India’s largest energy conglomerate, has begun the bulk supply of fly ash to cement plants from its new Rihand project in Uttar Pradesh. "NTPC Ltd has developed an infrastructure at Rihand project in Uttar Pradesh to transport fly ash in bulk to cement plants, located at distance, at a cheaper cost," said a company statement. The development is in line with the company’s commitment towards 100 per cent utilisation of fly ash from power plants.

Nesher Cement receives approval for AF use

06 July 2020, Published under Cement News

Israel’s Environmental Protection Ministry has approved Nesher Cement’s revised emissions permit, which will see the company replace some of its raw materials with waste. It will also use waste as fuel to reduce its dependence on petcoke. The approval comes despite protests from environmental advocacy organisation Adam Teva V’Din, which alleged that the request for permit changes reflected no effort to evaluate the expected emissions of dangerous metals, volatile organic compounds, dioxins...

Cemex Ventures to recycle plastic to produce concrete and aggregates via Arqlite

01 July 2020, Published under Cement News

Cemex Ventures is investing in US-based Arqlite SPC, a start-up that produces light recycled aggregates from plastic waste. The product benefits from a low CO 2 footprint and a greater durability for drainage, precast and lightweight concrete systems for non-structural use. Arqlite SPC began its research and development process in Argentina in 2016. It has developed an innovative technology that allows most of the plastic waste to be recycled instead of disposal at a landfill or polluting...

Georgia Power announces coal ash reuse project

01 April 2020, Published under Cement News

USA-based Georgia Power today announced a new beneficial reuse project for coal ash stored at Plant Mitchell, a retired coal-fired power station near Albany. Starting this year, approximately 2Mt of stored coal ash will be removed from the existing ash ponds for reuse in Portland cement manufacture. "As part of our ash pond closure efforts, Georgia Power is always looking for opportunities to reuse coal ash that are beneficial for our customers and communities," said Dr Mark Berry, vice p...

San Miguel Corp makes roads from plastic waste

24 January 2020, Published under Cement News

San Miguel Corp and Aboitz Equity Ventures Inc are using old plastic shopping bags, sachet wrappers and plastic packaging in their asphalt road mix to meet the Philippines' need for its US$157bn ‘Build, Build, Build’ infrastructure programme. The companies' new road surface material was developed with Dow Chemical and was first laid in November 2019, when 900kg of plastic was incorporated to pave a 1500m 2 test site near Manila.
 Aboitiz's Republic Cement & Building Materials Inc also use...

Votorantim creates new unit to assist alternative material co-processing

17 September 2019, Published under Cement News

Brazil’s Votorantim Cimentos has created a new business unit, named Verdera, to manage and provide services throughout the co-processing chain of alternative materials used in cement production. The company announced an investment plan of BRL400m (US$98m) to develop the unit over the next four years. The goal of Verdera is to offer waste disposal services to different companies and industries. Furthermore, the company plans to increase its petcoke substitution rate from 25 per cent to 80...