Displaying items by tag: construction
Al Kifah Ready Mix & Blocks updates on sustainable practices
11 September 2024Saudi Arabia: Al Kifah Ready Mix & Blocks has updated the market on its achievements in the sustainable concrete space in Saudi Arabia. The producer’s mixes include slag-based aggregates, as well as natural pozzolans and CO2 injected using equipment developed by Canada-based CarbonCure. Gulf Construction News has reported that the company's range of ultra-low CO2 ConGreen concrete products and BloGreen concrete blocks have supported projects including the Aramco Stadium project in Al Khobar, Qiddiya amusement park in Riyadh and King Salman Global Maritime Industries Complex in Jubail.
General Manager Nigel Harries said "Al Kifah Ready Mix & Blocks’ products have been widely adopted in mega and giga projects across the kingdom and have proved their high performance, thus strengthening the company’s position in the Saudi market. Al Kifah’s green solutions have unique properties that facilitate tasks on the job site through their better workability and finishability. They can be considered an all-in-one solution, offering zero wastage, zero mobilisation time, lower emissions and a smart way for supplying concrete in remote areas."
JSW Cement’s ground granulated blast furnace slag market share grows to 83% in 2024 financial year
19 August 2024India: JSW Cement recorded a market share of 83% in the Indian ground granulated blast furnace slag (GGBS) market in the 2024 financial year, which ended on 31 March 2024. CNBCTV News has reported that JSW Cement sells GBFS produced from slag supplied by fellow JSW Group company JSW Steel, alongside other partners in the steel sector. JSW Steel is presently expanding its refineries in Dolvi, Maharashtra, and Vijayanagar, Karnataka.
JSW Cement’s existing customers include construction firms for the Mumbai Coastal Road, Mumbai Trans-Harbour Sea Link, Bengaluru International Airport and nuclear power plant projects. India’s total national consumption of slag in the reporting period was an estimated 6 – 6.2Mt. Ratings agency CRISIL has forecast composite annual growth of 15 – 16% until the 2029 financial year, to reach 13Mt.
US: St Marys Cement won three national awards at the Slag Cement in Sustainable Concrete Awards 2023. The producer won the awards for supplying its slag cement for the construction of Wixom Assembly Park in Wixom, Michigan; of 333 North Water in Milwaukee, Wisconsin, and of Excellerate Manufacturing in Appleton, Wisconsin.
Denmark: Finland-based Betolar has supplied its Geoprime additive for its maiden construction project in Denmark. Its customer IBF used the additive to produce low-cement paving stones for a 1.5 hectare expansion to the lorry park at the Port of Aalborg. The stones consisted of an 84mm-thick cement-free base made of Geoprime material, with a 6mm-thick cement-based concrete top. The supplier said that the use of Geoprime reduced the project's cement consumption by 90%. This more than halved the carbon footprint of the work.
Betolar's chief commercial officer Ville Voipio said "This shows that the circular economy solution we have developed, which utilises industrial side streams, also works in large construction projects. We have been doing development work with IBF for a long time. Now there is a product on the Danish market that radically cuts emissions compared to traditional products."
Denmark is committed to eliminating 70% of its annual CO2 emissions between 2020 and 2030.
UK: Contractors poured 736m3 of cement-free concrete in an 11-hour continuous pour at the Hurst substation tunnel drive shaft of the London Power Tunnels project on 11 May 2023. Construction Index News has reported that Capital Concrete supplied the concrete. It uses a formula developed by Earth Friendly Concrete to replace 100% of cement with fly ash and ground granulated blast furnace slag (GGBFS) in the presence of an activator and admix solution. The supplier said that the concrete will reduce CO2 emissions by 64% compared with ordinary Portland cement (OPC), corresponding to 111kg/m3 of concrete.
Hoffmann Green Cement Technologies’ clinkerless cement secures Scientific and Technical Center for Building certification
25 March 2022France: The Scientific and Technical Center for Building (CSTB) has certified Hoffmann Green Cement Technologies’ clinkerless H-UKR alkali-activated slag cement for structural use in buildings of all types. BusinessWire News has reported that the certification confirms the product’s safety, sustainability, lifespan and performance in conformity with Eurocode 2 and Eurocode 8 design standards.
Co-founders Julien Blanchard and David Hoffmann said “In the midst of ongoing frenetic communication regarding carbon neutrality, Hoffmann Green Cement is as usual endeavouring to back its announcements with verified and evaluated elements. The granting of these evaluations further objectifies the quality of our cement, notably with the awarding of a lifespan of 100 years. In this regard, we would like to thank the CSTB’s teams for drafting this unprecedented technical appraisal and our own teams who are working tirelessly on seeking innovative decarbonised solutions to preserve tomorrow’s world.”
Ecocem starts first pour Exegy ultra-low CO2 concrete in the UK
12 January 2022UK: Ecocem and construction company Taylor Woodrow have conducted the first pour of the Exegy ultra-low CO2 concrete at waste management site in London. The mix used on the project is reported to reduce the carbon footprint by up to 70% when compared to traditional concrete. Cemex also collaborated on the project by producing the concrete used for the pour.
The concrete product was developed by Ecocem and Vinci Construction, using Ecocem Ultra, as part of Vinci Construction’s ultra-low carbon concrete range. Ireland-based Ecocem is a producer of cement and additives made using ground granulated blast furnace slag (GGBFS). Exegy is already being used at a pilot site of the Grand Paris Express and in the construction of the Athletes’ Village in Paris for the 2024 Summer Olympic Games.
Micheál McKittrick, managing director, Northern Europe, Ecocem, said, “Our Ecocem Ultra technology is already being used at scale in France, and we’re excited to now see it being adopted in the UK.” He added, “The cement and construction industries are developing and deploying a range of emission reduction technologies to help the UK Government reduce emissions by 78% by 2035, and reach net zero by 2050, and Ecocem will add a further dimension to these efforts.”
GMI Global announces Slag & Ash Trade Europe 2020 dates
27 August 2020Germany: GMI Global’s Slag & Ash Trade Europe 2020 slag and ash conference will take place on 1- 2 October 2020 in Cologne, North Rhine-Westphalia. Keynote speaker Ana Heitor will give a speech entitled “The Use of Granular Waste Materials for Transport Infrastructure Applications,” reflecting on the construction applications of materials including granulated blast furnace slag (GBFS).
Japan: 240,000t of unapproved steel slag have been found buried at a US$66m residential development in Sodegaura, Chiba Prefecture, according to local press. The slag lacks the approval of the landowner contravening the Land Readjustment Act. The Land, Infrastructure, Transport and Tourism Ministry has started to investigate.
The Nippon Steel & Sumitomo Metal Corporation's Kimitsu works produced the slag before selling it to the developers. Research by the Mainichi newspaper suggests that the developers used the slag for ground improvement in 2012 before approval was obtained affecting the finances of the project.
Due to the swelling of slag when it absorbs water, if the slag-to-soil ratio surpasses 30%, users should to test in advance how much the mixture will expand. Steel slag is treated as industrial waste if it is not recyclable. Disposal of such slag costs US$170 – 340/t.