Displaying items by tag: Fly Ash

UK: Innovative Ash Solutions has received a Euro588m Scottish government grant to establish a 20,000t/yr ash processing plant in South Lanarkshire. The Herald newpaper has reported that the plant will process boiler ash, cyclone ash and incineration fly ash for use in local cement production. When commissioned in 2022, the plant will eliminate 6104t/yr of CO₂ emissions, according to the operator. The government granted the funding under its Zero Waste Scotland circular economic investment scheme.

The company said “Using this new patented process, which diverts waste materials from landfill and avoids the use of virgin sand, creates a product which is cheaper and will reduce the environmental impact of cement production compared to the use of imported pulverised fuel ash.”

Innovative Ash Solutions is a joint venture of waste management company Levenseat and consultancy Organic Innovative Solutions.

US: LafargeHolcimUS and its subsidiary Geocycle have successfully completed a barge shipment of 2000t of reclaimed bottom ash and fly ash from a pond at CenterPoint Energy’s AB Brown coal-fired power plant at Evansville in Indiana. The delivery is the first under a new 6Mt multi-year coal ash recycling contract with the energy provider.

LafargeHolcim US will use the coal ash to replace clay and sand in cement production at its Ste. Genevieve cement plant in Missouri. The producer says that this will help to reduce the plant's consumption of raw materials. LafargeHolcim US and Geocycle have invested US$80m in infrastructure to extract, process, transport, store and recycle ash from the power plant. Geocycle has managed the on-going joint recycling initiative between LafargeHolcim and CenterPoint Energy since 2009.

LafargeHolcim US's chief executive officer Toufic Tabbara said “This milestone is a tangible example of how industry participants together can develop creative and efficient solutions that contribute to the circular economy. Together, LafargeHolcim, Geocycle and CenterPoint Energy will avoid landfilling for power plants and reduce the consumption of non-renewable raw materials. This is a clear win-win for people and our planet.”

US: Charah Solutions has signed a contract with Associated Electric Cooperative (AECI) to receive bottom ash, fly ash and boiler slag from its Thomas Hill Energy Center coal-fired power plant in Missouri until 2026. Charah Solutions will recycle the by-products to produce supplementary cementitious products and redistribute these through its MultiSource materials network. The network consists of 40 locations across the US.

President and CEO Scott Sewell said "We are delighted to partner with AECI to manage their ash marketing needs at Thomas Hill while supplying our concrete producers with the high-quality material they need."

Sweden: Cementa has announced that its Stockholm cement terminal will no longer receive deliveries of its Slite brand cement and will instead begin solely stocking the company’s fly ash cement from 1 December 2021. The producer says that the transition will reduce the carbon footprint of the terminal’s products by 30,000t/yr. Slite cement will continue to be available from the nearby Köping and Oxelösund cement terminals.

US: Cemex USA has upgraded two Florida cement terminals, the Pensacola and Palm Beach terminals, at a cost of US$8m. The upgraded terminals will serve to increase Cemex USA’s cement supply to the region through marine shipments from its global operations. The Palm Beach terminal is also involved in the distribution of assorted cementitious materials including granulated blast furnace slag (GBFS) and fly ash for cement production.

USA executive vice president Matthew Wild said “Florida is growing rapidly, and Cemex’s strong network makes our company well-positioned to implement supply chain and operational enhancements to meet the high demand for building materials in Florida and beyond.” He added “On the cement side, increased demand has outpaced supply at times, and we expect our supply chain enhancements to help alleviate that issue.”

Australia: Researchers from Murdoch University in Western Australia have developed a cement-free concrete called Colliecrete. ABC News has reported that the concrete comprises of 80 – 90% fly ash. Other ingredients are bauxite residue and recycled aggregates. Developer Ramon Skane said that customers can make Colliecrete ‘anywhere, at room temperature.’

Finland: Betolar has launched Geoprime, an alkali-activated additive for slag and fly ash used in concrete production. The company says that the product will enable concrete production from raw materials with 80% lower CO₂ than ordinary Portland cement (OPC).It aims to meet the growing demand for sustainable and cost-effective construction materials. Geoprime enjoys fast global scaling potential thanks to Betolar’s intellectual property licensing business model, which enables the use of existing production facilities, according to the company.

Chief executive officer Matti Löppönen said “We have seen a massive shift in the concrete manufacturing and construction industries driven by investor pressure for environmental, social and governance data transparency and Net Zero commitments, and now people are keen to hear what we have to offer.”

South Korea: Sampyo Group has announced a planned investment of US$171m before 2030 to reduce Scope 1 and 2 CO₂ emissions by 35% over the period from an August 2021 baseline. The parent company of Sampyo Cement plans to achieve this in the first phase by increased its use of alternative fuels, improving energy efficiency, introducing low-carbon raw materials such as fly ash and developing sustainable products. The company is targeting net zero CO₂ production by 2050.

India: Vedanta Aluminium has expressed interest in a long-term collaborative partnership with a cement producer. The Economic Times newspaper has reported that, in such a partnership, Vedanta would supply the producer with fly ash and bauxite residue with which to produced reduced-CO₂ cement. The company said that a cement producer could be its ‘perfect circular economy partner.’

Chief executive officer Rahul Sharma said "We hope the Indian cement producers come forth to work with us on this innovative solution, which is a true win-win scenario for the industry and environment.”

North America: Australia-based Boral has signed an agreement with a subsidiary of Westlake Chemical Corporation for the sale of its North American Building Products business. The value of the sale is US$2.15bn and the proceeds will increase Boral’s surplus capital, enabling it to reduce its net debt target to US$0.98m from US$1.13m. Boral’s North American Building Products manufactures and supplies cladding, roof tiles, windows and other light building products for residential and commercial markets

Under its on-going review of its North American Fly Ash business, Boral is now considering a divestment, a joint venture or a strategic alliance formation for the subsidiary. It said that it expects to decide by August 2021.