Displaying items by tag: concrete
Carbicrete secures US$1.5m funding from SQN Venture Partners
21 December 2020Canada: Carbicrete has secured US$1.5m in funding from US-based SQN Venture Partners (SQNVP). The funds will finance research and development activities at its new Lachine laboratory, as well as operations at its Drummondville pilot plant in Quebec. It said that this brings its total funding received from major investors in 2020 to US$8m with investment already agreed from Harsco Environmental, the Quebec Ministry of Energy and Natural Resources and Sustainable Development Technology Canada (SDTC). The technology company is developing concrete products made with steel slag for the construction industry.
Chief executive officer (CEO) Chris Stern said, “This venture debt cash injection following our equity financing further underlines the thesis that the financial markets are believing in value-added, carbon-negative technologies such as CarbiCrete that mitigate CO2 in our atmosphere. We are proud to have SQNVP as an investor in our company.”
Australia: Researchers from the University of New South Wales (UNSW) and CRC for Low Carbon Living (CRCLCL) are testing a geopolymer concrete made from fly ash and blast furnace slag on a road in Sydney. A 30m stretch of road is being trialled with 15m of traditional concrete and 15m of a geopolymer concrete. Nine sensors have been positioned under the concrete to monitor and compare how the geopolymer concrete performs. The results from the trial will be used to create the first set of industry guidelines for geopolymer concrete.
“While we’ll monitor the road performance for up to five years, a lot of the data collected in the first three to 12 months of this world-first trial will be used to confirm our models and strengthen our predictions,” said Professor Stephen Foster, Head of the School of Civil and Environmental Engineering at UNSW and the CRCLCL project lead.
Capital Concrete supplies Cemfree to London
29 May 2019UK: Ready-mix concrete (RMX) supplier Capital Concrete has dedicated two 60t silos at its London plants to supply Cemfree, a low carbon concrete made using ground blast furnace slag (GGBS) made by DB Group. It is the only RMX supplier in London supplying the product in this way.
“We’ve seen customer interest pick up recently, interest which is clearly linked to the growing importance of environmental considerations in construction build designs. Capital Concrete is now a leading supplier of Cemfree in the London area and we’re able to supply high volumes of this product anywhere in the London market,” said Luke Smith, the managing director of Capital Concrete.
Charah opens plant at the Port of Coeymans
18 January 2019US: Charah has opened a slag grinding plant at the Port of Coeymans near Albany, New York. The unit uses the company’s proprietary process to grind granulated blast furnace slag (GBFS) to create supplementary cementitious materials (SCMs). The site is accessible by ship, truck and rail and will sell materials to concrete producers in the northeast of the country.
The new plant will also produce slag cement that is marketed under the MultiCem brand. Slag cement will be distributed throughout Charah Solutions’ MultiSource materials network, a nationwide distribution system of more than 30 sourcing locations that provide ready mix concrete (RMX) producers and other customers SCMs, including fly ash and slag cement.
Charah buys SCB International
02 May 2018US: Charah has purchased SCB International to jointly develop and deploy technologies including fly ash beneficiation and mineral grinding technologies. Its intentions are to target: the beneficiation of fly ash for sale to concrete producers; processing kiln dust to remove mercury for emissions regulations compliance; and grinding granulated blast furnace slag (GBFS) and pozzolan for sale to concrete producers. Charah says that the acquisition will also allow it to more than double the volume of materials available to its customers.
“By leveraging SCB’s diversity of materials available and by benefiting from their experience in sourcing materials overseas, we see great potential in marketing the fly ash beneficiation and grinding technologies to our customers, both utilities and concrete producers,” said Scott Ziegler, Vice President of Ash Sales and Marketing at Charah.
As part of this agreement, Charah has acquired SCB’s proprietary fly ash beneficiation technology which will allow Charah to improve the quality of fly ash produced by electric utilities and to increase Charah’s supply of fly ash to concrete producers in the US. Charah also will deploy grinding technologies for GBFS and pozzolan and will market these supplementary cementitious materials (SCMs) to the manufacturers of concrete products.
Both the ash beneficiation and the mineral grinding technologies will support Charah’s expanding MultiSource fly ash distribution network. The MultiSource fly ash network will help ensure that Charah can provide a steady and reliable supply of SCMs for ready mix concrete producers throughout the US.
Charah provides ash management, fly ash sales and marketing and utility support services for the coal-fired power generation industry. Its services include landfill design, construction, management, operations and closure; fly ash, bottom ash and gypsum sales and marketing; ash pond management and closure; structural fill projects; and power plant support services including limestone supply and flue-gas desulfurisation operations
David Ball Group and Bouygues UK run Cemfree concrete trial
07 December 2017UK: David Ball Group has run a series of trials with Bouygues UK of its Cemfree concrete product at a redevelopment scheme at the Gascoigne Housing Estate in Barking, London. The group says that the trial went ‘exceptionally’ well and teaming Cemfree with Bouygues UK further down the line on future projects looks ‘hopeful.’ Cemfree is a low carbon concrete made using ground blast furnace slag (GGBS).
“We are always looking for new ways to innovate, and the carbon-saving potential of Cemfree is considerable. Initial trials have been very positive and we will continue to explore its potential as a sustainable alternative to traditional concrete – a hugely exciting possibility,” said Jean-Marie Perret, a project manager for Bouygues UK, who is leading the Cemfree trials for the Gascoigne Estate.