Cement News tagged under: fly ash

RSS feed

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...

Improving ash quality

01 February 2016, Published under Cement News

As governments consider the reduction of power generation in coal-fired power stations for environmental reasons, this article looks at the impact of this measure on the supply of fly ash to the cement industry. However, in the short- to medium term the availability of fly ash seems to be robust as sufficient stocks appear present, either in landfills or in fly ash lagoons. Coal-fired power stations have long supplied fly ash to cement plants as an addition to Portland cement As...

UK: new figures on coal ash show uptake continues to climb

28 January 2016, Published under Cement News

UKQAA (UK Quality Ash Association) – the representative organisation for the producers and users of coal ash in the UK – has released statistics on the production and uses of coal ash from 1999 to 2014. These figures span a decade and a half and highlight important trends in the supply and beneficial use of fly ash and furnace bottom ash by the construction and engineering sectors. Key findings are that while total supply exceeds demand, generally consumption of fly ash has increased from ...

Vietnam: Hoang Trung Hai permitted to continue importing fly ash

03 July 2015, Published under Cement News

Vietnam’s Deputy Prime Minister, Hoang Trung Hai, has agreed to allow Nghi Son Cement Corp to continue the pilot import of fly ash as material for its cement production. The deputy PM earlier agreed to allow Nghi Son Cement Corp to import a volume not exceeding 200,000tpa of fly ash in the 2015-2016 period. However, he also requested the company develop a plan to use domestic fly ash from 2017. Vietnam, home to many thermal power plants, has a huge supply of fly ash. It is estimated that t...