Cement News tagged under: Fly ash

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UKQAA appoints new chair person

03 May 2018, Published under Cement News

The UK Quality Ash Association (UKQAA) has appointed Tarmac's Allan Everett as the association's new chair, taking over from Power Minerals' Ivan Skidmore who spent four years in the role.   The UKQAA is the UK's leading authority on the use of quality ash in construction and engineering applications and represents a range of members from across the construction supply chain.   Allan Everett, also Tarmac’s ash business manager, will help steer the association and work with its membership, to...

Research undertaken to increase fly ash in cement

01 May 2018, Published under Cement News

An ongoing research project, carried out by De Salle University in the Philippines, is seeking to use 100 per cent fly ash in cement production in an effort to reduce its carbon footprint. "My project aims to use fly ash alone without using Portland cement. We try to utilise the waste of coal-fired plants to produce material comparable to Portland cement and we call the technology geopolymer," said Dr Michael Angelo B Promentilla, Professor of Chemical Engineering and the head of the Wast...

Maharashtra government plans to give away fly ash for free

15 March 2018, Published under Cement News

Following its adoption of the fly ash utilisation policy last year, the Maharashtra government is now planning to give away the material for free. At its first meeting held on Tuesday, the Fly Ash Council told the state power generation company, Mahagenco, to work out how to provide the material to industries within 100km of its power plant, according to The Indian Express. "It has been observed that industries are discouraged from buying fly ash because of high transportation cost. Giving...

Vietnam’s GENCO 1 in cement deal

17 October 2017, Published under Cement News

Vietnam’s Power Generation Corporation 1 (GENCO 1), a unit of the country’s state utility Vietnam Electricity (EVN), has signed deals with seven partners to sell some 2.9Mt of fly ash from the Duyen Hai 1 and 3 thermal power plants in the southern province of Tra Vinh. The fly ash will be used as additives in cement production, reported the Thoi Bao Kinh Doanh newspaper, citing Nguyen Hai Ha, head of technical production at EVN. To date GENCO 1 has sold 140,000t of fly ash since the Du...

Cement Australia to pay an extra US$16.1m over fly ash competition case

05 October 2017, Published under Cement News

The Australian Competition and Consumer Commission (ACCC) has failed to win a substantial increase in the penalty awarded against Cement Australia for breaching the competition rules over the purchase of fly ash in Queensland. However, the competition regulator did win a technical argument over who is liable for payment of the fine in the case of jointly-owned companies. Cement Australia is owned by global giants Hanson and Holcim and the case centred on contracts to buy fly-ash from th...

Plans to set up cement facilities near India’s thermal power plants

02 June 2017, Published under Cement News

Fifteen companies in India have expressed an interest to set up cement plants near NTCP power stations to help dispose the power company of the 52Mt fly ash generated by its projects. In addition, NTPC is also scouting for captive consumers to create the demand for the electricity generated by its plants as the cement facilities will be required to buy power from the nearby NTPC works. "Interested party shall sign a long-term agreement with NTPC for use of fly ash and electricity exclusiv...

Beneficiation of landfilled and ponded fly ash

23 May 2017, Published under Cement News

With interest in the recovery and beneficiation of landfilled ash growing, ST Equipment and Technologies (STET) explains how its unique tribo-electrostatic belt separation system, long used for beneficiation of freshly-generated fly ash, is also effective on recovered ash after suitable drying and deagglomeration. By Lewis Baker, Abhishek Gupta, Stephen Gasiorowski, ST Equipment and Technologies , USA. Figure 1: STET Separator processing dried, landfilled fly ash The American Co...

Ambuja Compocem launched

04 May 2017, Published under Cement News

Ambuja Cement announced it has launched its composite cement, Ambuja Compocem, to the Indian markets of Bihar and Jharkhand. The LafargeHolcim company said in a statement that its Chhattisgarh facility has become is first cement plant in India to develop a composite cement after rigorous research over the last year and a half. The new offering is a combination of cement, flyash and slag. Speaking at the launch of the product, Ajay Kapur, MD and CEO of Ambuja Cement, said: "Ambuja Compocem...

Mbeya signs cooperation agreement Kibo Mining

25 April 2017, Published under Cement News

Tanzania-based Mbeya Cement Co, a LafargeHolcim subsidiary, has signed a cooperation agreement with coal development company Kibo Mining which covers a range of potential areas of collaboration including the supply of coal and flyash to Mbeya. Kibo Mining holds a thermal coal deposit at Mbeya and is developing a 250-350MW mine mouth thermal power station, the Mbeya Coal to Power Project, previously called the Rukwa Coal to Power Project. In a statement, Kibo Mining said that together w...

Fly ash and slag cements

27 July 2016, Published under Cement News

While cements containing fly ash or GGBS have different strength properties to ordinary Portland cement, they also benefit from improved durability and workability. A key factor in strength development is the provision of calcium silicate hydrate. Concrete made with cement which includes fly ash or ggbs will have different strength properties than that made with cement which contains purely clinker and gypsum Although a particular material may be cheaper per kilogram or per t...