Cement News tagged under: Fly ash

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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-...

Cemex and Carbon Upcycling to increase industrial waste use

04 November 2020, Published under Cement News

Cemex SAB de CV has signed an agreement with Carbon Upcycling Technologies to improve processing of residue or byproducts from industrial processes and to capture CO 2 to produce nanomaterials and low-CO 2 concretes. Cemex Ventures will work with Carbon Upcycling Technologies  to increase the 3Mta of industrial residue that Cemex uses for cement and concrete additions, and therefore reduce the volumes being sent to landfill. The initiative will increase the reactivity of industria...

India Cements begins transporting fly ash by rail

11 September 2020, Published under Cement News

India Cements’ plant in Chilamkur, Andhra Pradesh, has started loading wet fly ash for another plant in Vishnupuram, Telangana. This marks the first time that fly ash is being loaded by railways from this plant, as the company used to transport the material through roadways. Freight customers currently receive a 40 per cent concession on the normal tariff rates (NTR) if they load fly ash either in bagged or in loose/bulk condition through open wagons.

Government plans new cement units near power stations

24 August 2020, Published under Cement News

Nitin Raut, a cabinet minister for the government of Maharashtra, India, has stated that the Maha-Vikas Aghadi (MVA) government has plans to set up new cement units near power plants in the state. The pilot project would reportedly be at the Khaparkheda Thermal Power Station (KTPS). "We’ve completed formalities like studying feasibility of such units in our plants’ vicinity. It would be a joint venture between Maharashtra State Power Generation Company (Mahagenco) and cement companies, and ...

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.

Portland cement, lime and alkali-activated binders

15 May 2019, Published under Cement News

Following on from last month’s discussion regarding the production of alternatives to Portland cement clinker, Arthur Harrisson takes a closer look at alkali-activated binders. Fly ash needs to be activated to produce an effective binder In a recent article 1 about the production of alternatives to Portland cement clinker, in the discussion of the preferred options of Gartner and Sui 2 , mention was made of alkali-activated binders, which were considered worthy of a paper of th...

Madhya Pradesh Power Generating Co plans grinding facility

09 May 2019, Published under Cement News

Madhya Pradesh Power Generating Co is planning a cement grinding unit at its Satpura Thermal Power Station in Sarni, Betul district, Madhya Pradesh, India. The company will offer a maximum of 4.25ha of land near its thermal power plant on payment of lease charges for 30 years and 0.25Mt of dry fly ash will be supplied free-of-cost basis during this period. The project team is currently evaluating tenders.

Cement companies purchased 0.3Mt of fly ash from Endesa power station

02 April 2019, Published under Cement News

UK and North American cement companies as well as the nearby LafargeHolcim plant have bought some 0.3Mt of fly ash from the Endesa power station in Carboneras, Spain, in 2018. The fly ash is shipped to overseas customers from the port of Endesa Pucarsa. In addition, Endesa has also sold 30,000t of slag and 60,000t of gypsum from its lime plant.

Fly ash transported through India's inland water highway

08 October 2018, Published under Cement News

As part of an ongoing project to establish a water highway route, the Inland Waterways Authority of India has successfully transported 1235t of fly ash from NTPC’s power facility in Bihar to Pandu, Assam. Following the completion of one of the country’s longest haulages in inland water transport, the material will be used by Star Cement.  "This endeavour will also establish the water highway route from Kahalgaon to Pandu in Assam via Bangladesh border helping transportation of other goods ...

Project delivers fly ash to plants in northeast India

28 August 2018, Published under Cement News

NTPC Ltd, India's largest power company, has begun transporting fly ash through inland waterways for use in cement manufacture. The pilot project sees the material delivered to Pandu, Assam, from the company's thermal power station in Kahalgaon, Bihar. "For this pilot project, first mile activity of bagging and loading of fly ash into barges will be done by NTPC and the cost of transportation will be taken care of by the Inland Waterways Authority of India and Star Cement," NTPC said in a ...