Displaying items by tag: Fly Ash
Kyrgyzstan: The Terek-Tash cement plant in the Kemin district is expected to commence operations in August 2024. Akylbek Japarov, the chair of the country’s Cabinet of Ministers, made the announcement as part of a tour of the Chuy region, according to the Trend News Agency. The plant will have a production capacity of over 1Mt/yr and has had an investment of US$160m. The Russian-Kyrgyz Development Fund has contributed US$45m to the project. Once completed the plant is expected to be one of the country’s largest industrial units. It will also use ash from the Bishkek thermal power plant.
Holcim introduces ECOAsh in Western Canada
11 March 2024Canada: Holcim North America has introduced ECOAsh, a Type F fly ash reclaimed from landfills, within its Lafarge Western Canada operations. This innovation is part of Holcim's commitment to sustainable building materials and represents a significant stride in decarbonising the construction industry. As the shift away from coal-fired power plants continues, addressing challenges related to sourcing reliable fly ash supplies prompts the exploration of harvesting and beneficiating legacy landfilled ash as a viable replacement.
Toufic Tabbara, Regional Head of Holcim North America, said "As we continue to build to support growing population demands, the integration of circular building materials such as ECOAsh plays a crucial role in driving our portfolio towards a more sustainable future.”
Brad Kohl, President and CEO of Lafarge Western Canada, added "The transformation of landfill materials into high-value fly ash for sustainable building presents an exciting opportunity for our customers and us to build more with less and work towards a net-zero future.”
Holcim and Geocycle's new processing facility in Alberta will produce high-quality, specification-grade fly ash. The ECOAsh processing facility, commissioned in February 2024, will commence the production and distribution of products throughout Western Canada in the first quarter of 2024.
Adani Group to establish cement plant in Santhal Pargana
22 January 2024India: Adani Group has announced plans to build a new cement plant, possibly at Godda, in Jharkhand’s Santhal Pargana Division. The Times of India newspaper has reported that producer recently established a 1.6GW power plant in Godda.
The group said “In keeping with our group’s expansion plans, we are conducting a feasibility study to set up a cement factory, most probably in Godda. A proposal will be sent to government soon. The proposed plant will further boost the economy of Godda and Santhal Pargana. The proposed plant will utilise fly ash from our existing power plant here as raw material. At present, the fly ash is being sent to the ACC cement plants in Jhikpani and Sindri.”
Vinh Tan 1 coal-fired power plant supplies 811,000t of slag and ash to cement plants in first nine months of 2023
27 October 2023Vietnam: Cement producers received 811,000t of boiler slag and fly ash from the Vinh Tan 1 coal-fired power plant in Binh Thuan during the first nine months of 2023. This corresponds to 74% of the volume of the by-products generated at the plant during the period. Việt Nam News has reported that the nearby Vinh Tan 4 coal-fired power plant also ‘almost entirely’ avoided waste in the same way. The Vinh Tan 1 coal-fired power plant ended the period with 4.3Mt of ash and slag in stockpiles, while the neighbouring Vinh Tan 2 Thermal Power Plant had 7Mt.
The provincial government of Binh Thuan Province has lobbied the Ministry of Construction to review and adjust current requirements around HDPE liner use, water quality testing and radiation safety in order to facilitate the use of boiler slag and fly ash in cement and other construction products.
Nuvoco Vistas launches Duraguard Microfibre fibre reinforced cement
15 September 2023India: Nuvoco Vistas has launched Duraguard Microfibre Cement, a fibre reinforced cement. The cement’s clinker is 48-52% tricalcium silicate, with low tricalcium aluminate, and contains electrostatically precipitated dry fly ash. The producer says that it offers enhanced bonding, crack resistance, strength and durability and reduced permeability, as well as a smoother surface finish, compared with ordinary Portland cement (OPC). Nuvoco Vistas first applied for a patent for the product in mid-2018.
Managing director Jayakumar Krishnaswamy said "We prioritise innovation. Our Construction Development and Innovation Centre (CDIC) is dedicated to creating sustainable and innovative products that meet the highest global standards. The awarded patent validates our unwavering commitment to innovation and keeps us in the forefront of pioneering advances in the cement industry, delivering exceptional quality and responsible business practices."
Dalmia Cement (Bharat) orders Gebr. Pfeiffer vertical roller mills for Ariyalur and Kadapa grinding plants
08 August 2023India: Germany-based Gebr. Pfeiffer says that it has received orders for two MVR 3750 C-4 vertical roller mills from Dalmia Cement (Bharat). The producer plans to install one mill at its Ariyalur grinding plant in Tamil Nadu and the other at its Kadapa grinding plant in Andhra Pradesh. Gebr. Pfeiffer says that the mills will be employed in grinding clinker and pond ash. Each will produce 160t/hr of cement or fly ash cement. The supplier said that the mills' vertical design will help them to dry pond ash, as well as grinding and classifying it.
Japan: A team at the University of Tokyo has developed cement-free alternative concrete from ultra-fine sand and fly ash. NHK has reported that the process uses recyclable alcohols and has lower CO2 emissions compared to concrete production using ordinary Portland cement. Research with industrial partners into possible construction sector applications is underway. Partnerships with Japanese ready-mixed concrete producers are reportedly also under discussion.
Further information is available from Yuzo Tobisaka, an independent Japanese consultant in the cement and ready-mixed concrete industry, at This email address is being protected from spambots. You need JavaScript enabled to view it..
India: Ambuja Cements and its subsidiary ACC have transitioned to reporting their results in line with the (April - March) Indian financial year. As such, they have published 15-month results for 2022 and the first quarter of 2023. During the period, Ambuja Cements reported sales of US$4.75bn, up by 34% year-on-year from US$3.53bn. Its cement volumes rose by 28% to 68Mt, while its earnings before interest, taxation, depreciation and amortisation (EBITDA) fell by 11% to US$714m. Meanwhile, ACC recorded sales of US$2.71bn, up by 38% from US$1.97bn in 2021. Its cement volumes rose by 31% to 37.9Mt, while its EBITDA fell by 30% to US$275m.
ACC announced its goal to become India's 'most profitable cement company.' To realise this, the company will implement a three-pronged strategy of capacity expansion, efficiency improvements and development of its distributor and dealer network. Under the capacity expansion heading, the producer will double its production capacity through the construction of new cement plants and the expansion of existing ones. In this, it will lay special emphasis on securing supplies of renewable energy and supplementary cementitious materials, including fly ash from its own power plant segment. The company noted that it recently secured access to 1Bnt-worth of new limestone reserves in Maharashtra, Odisha, Karnataka and Rajasthan. It will also seek to increase its coal production to avoid the rising cost of imports.
In the 2024 financial year, the government of India plans to invest US$11.4bn in the construction of new housing, roads and sanitation infrastructure nationally. Ambuja Cements has forecast an increase in domestic cement consumption of 6 - 8% to over 390Mt/yr. It expects Indian cement production to rise by 8 - 10% year-on-year to 390Mt in the 2024 financial year.
Holcim invests in Coomtech
05 May 2023UK: Switzerland-based Holcim has invested in Coomtech, a developer of low-emission kinetic drying technology for raw materials. The group says that Coomtech's technology emits up to 75% less CO2 than traditional drying methods and enables increased use of recycled materials in cement and concrete. Holcim subsidiary Aggregate Industries previously collaborated with Coomtech on fly ash drying at a UK power plant.
Edelio Bermejo, head of global research and development said "At Holcim, we are continuously working to implement greener operations for a net-zero future, and to increase the use of recycled materials in our products to drive circular construction. Coomtech's low-emission drying technology helps us meet both these goals. I look forward to working with them as a key partner in our journey to decarbonise buildings."
Betolar calls for a global performance-based standard to support low-carbon building materials
03 May 2023UK: Riku Kytömäki, the chief executive officer of Betolar, has called for a global performance-based standard to replace the current building requirements that restrict the use of new low-carbon materials to replace cement in concrete production. He made the comments at the London Concrete Expo. Kytömäki argued that current standards state that concrete manufacturers must use a certain percentage of cement to strengthen the finished product. Betolar’s product Geoprime is an additive designed for use in cement-free concrete production with ash and ground granulated blast furnace slag (GGBFS). However, “ageing” standards rule out the use of these kinds of products such as this despite their sustainability advantages.
Kytömäki said “It is time for global concrete industry to step up their sustainability efforts. New material innovation is available. It is cost-effective and helps to meet stricter durability requirements. However, the current regulations across the markets are restricting the use of circular materials allowed in concrete buildings.” He added that his company’s product Geoprime, “does not require large investments, but there is regulation to be developed quickly so that new solutions and materials can be used."
Betolar says it has analysed over 200 side-streams other than slag and fly ash, providing flexibility to process locally available side-streams. It added that there are also significant CO2 savings to be found in logistics when manufacturing processes take place near the source of the industrial side-streams.