Displaying items by tag: Fly Ash
Buzzi Unicem announces purchase of 50% stake in Ecotrade
06 September 2017Italy: Buzzi Unicem has announced that it purchased a 50% stake in Ecotrade in early 2017. Ecotrade supplies industrial byproducts, such as fly ash and blast furnace slags, from power plants and steel mills to the cement industry with deliveries of over 2Mt/yr at its peak. The company is a member of the Italian Register of Environmental Operators and it has a national distribution network in Italy. Buzzi Unicem intends to use Ecotrade’s expertise to expand its operations internally.
Taiheiyo Cement to build fly ash washing plant at its Oita plant
01 September 2017Japan: Taiheiyo Cement plans to establish a fly ash washing plant at its Oita cement plant. It will collect fly ash generated by local government wastedisposal facilities and use this as a raw material to produce cement. In 2016 Taiheiyo Cement entered into a three-way agreement for the promotion of a recycling-based society with the local governments of Oita and Tsukumi and took part in talks concerning the recycling of waste materials generated within Oita Prefecture. Bottom ash generated by waste disposal facilities has been used at the Oita plant since 2007.
India: The Cement Corporation of India (CCI) has signed a memorandum of understanding with Rashtriya Ispat Nigam Limited (RINL), the owner of the Visakhapatnam Steel Plant to build a 2Mt/yr slag and fly ash cement plant. RINL will provide the blast furnace slag and fly ash for the project. The plant is expected to cost US$23m and it will take 15 months once the deal is finalised.
UK: Aggregate Industries has launched six new products in its Lafarge Cement range. The additions include Super White Cement and Sulfate Resistant Portland fly ash cement as well as Concrete Mix, Postmix and Mortar Mix blends, and Hydrated Lime. The new products join the LafargeHolcim subsidiary’s already established Lafarge General Purpose Cement range.
India: 15 companies have expressed interest in building cemeunt plants near to NTPC’s power stations. The electricity generation company sought cement producers in early 2017 to submit expressions of interest for partnerships to build 1Mt/yr cement plants, according to the Mint newspaper. NTPC wants its partners to sign long-term agreements with it to exclusively use fly ash and electricity from its power plants. The company has declined to name the companies that have expressed interest in the scheme. However, the power plants it wants to set up cement plants near include Barh, Farakka, Bongaigaon, Dadri, Badarpur, Moda and Aravali Power.
Boral completes acquisition of Headwaters
09 May 2017US: Boral has completed its acquisition of Headwaters, a leading building products manufacturer and fly ash marketer in North America. Boral USA and Headwaters will form a new division to be named Boral North America, which will be headquartered in Atlanta, Georgia, the location of Boral’s current US headquarters.
India: Ambuja Cement has launched Ambuja Compocem, a composite cement made from fly ash and slag. The product is being produced at its Chhattisgarh plant and it has been introduced to markets in Bihar and Jharkland. It is being marketed to all market segments including individual house builders, real estate developers and infrastructure projects.
“With the launch of Ambuja Compocem, we have achieved a three pronged sustainability approach by conserving natural resources, creating a greener product and fulfilling customer needs for a superior performance product. We call this approach delivering true value,” said Ambuja Cement’s managing director and chief executive officer Ajay Kapur.
Tanzania: Kibo Mining has signed a memorandum of understanding with Mbeya Cement, a subsidiary of LafargeHolcim, to collaborate regionally and to share materials in the Mbeya and Songwe regions. The agreement includes arrangements to supply coal, limestone, fly ash, electricity and cement between the parties. It also includes plans to bring together local development bodies to develop the region.
Kibo Mining operates a thermal coal deposit at Mbeya and it is developing a 250 – 350MW coal power plant at the site with the help of Chinese contractors.
Renca develops fly ash and slag cement for 3D printing
22 March 2017UAE: Renca, a technology start-up working with Dubai’s Future Accelerators programme, has developed a geopolymer cement from fly ash and ground granulated blast slag that can be used in 3D printing, according the National newspaper. The product’s advantage over Ordinary Portland Cement when used in additive manufacturing is that it can be used without additives making it cheaper.
The start-up is a joint venture between Andrey Dudnikov, a Russian businessmen, and Alex Reggiani, an Italian geologist and mineralogist. The company is working with the Dubai Municipality to develop its material for use in 3D printing projects in Dubai. The company is also looking to set up a plant for its product in the city.
India: The Ministry of Environment, Forest and Climate Change has decided to form a multi-disciplinary committee to examine the possibility of building cement plants near to power plants to use fly ash. The decision was taken at the ministry's Expert Appraisal Committee (EAC) for thermal power projects in mid-February 2017 following a directive by the National Green Tribunal (NGT) in January 2017, according to the Mint newspaper.
"Only 20 - 30% of fly ash is being currently used in making Pozzolana Portland Cement (PPC). Though there are technologies available worldwide for using 80% of fly ash in cement manufacturing, it is not practised in India for various reasons," said an expert committee convened by the ministry.
A sub-committee may be formed with the representative Ministry of Mines, Ministry of Power, CEA (Central Electricity Authority), Department of Industrial Policy and Promotion (DIPP) and Ministry of Coal to examine the issue. In 2015, about 180Mt of fly ash was produced across India and by 2025 it is estimated to reach 300Mt/yr. Unused fly ash is typically dumped into ash ponds.