Displaying items by tag: GGBS

Saudi Arabia: Saudi Readymix and Finland-based Betolar have launched two new reduced-CO₂ concretes, produced using ground granulated blast furnace slag and natural pozzolans with Betolar’s Geoprime technology. One of the products is cement-free and the other has an ultra-low (2.5%) cement content. TradeArabia News has reported that the dual launch concludes a successful partnership between the companies, which began in 2023.

Saudi Readymix technology and strategy director Chris Leptokaridis said "Saudi Readymix has been at the forefront of developing new technologies to meet our customers' increasing demand for eco-friendly, low-CO₂ solutions. Our partnership with Betolar has enabled us to successfully deliver on this goal, offering groundbreaking concrete recipes that significantly reduce carbon emissions."

Betolar senior researcher Ahmad Alzaza said "This project pushed the boundaries of innovation by bringing low-carbon technology into the ready-mix concrete space. We are proud to have contributed to a solution that will help advance sustainable construction across Saudi Arabia."

Ireland: Ecocem has launched Superfine, a ground granulated blast furnace slag (GGBS) for use in specialist applications in the European market. The product is a GGBS that has been ground to a very fine particle size. It is intended to be added to other products to improve their strengths in applications such as high performance and ultra-high-performance concrete (UHPC). It can also be used to improve the finish of concrete and reduce the amount of pigment required.

Superfine will be launched across Europe, with the product already being trialled in Abu Dhabi and specified in projects across Ireland. It is designed to be used as a specialist additive in binders, industrial mortars, ultra-high performance concrete (UHPC) and precast concrete.

Susan McGarry, the managing director of Ecocem Ireland, said “After extensive time in research and development, launching Superfine onto the Irish market is testament to our global range of innovative and sustainable concrete solutions.”

India: Loesche has provided an update on the operation of a slag grinding mill it sold to Sri Balaha Chemicals in 2016. The LM 35.2 +2 S cement mill was supplied in 2016 and installed and commissioned by March 2017 at the customer’s site in Hindupur, Andhra Pradesh. The mill produces 50t/hr of granulated ground blast furnace slag (GGBFS) at 4000cm²/g Blaine. Subsequently the mill has achieved a production rate of 52t/hr and a specific power consumption rate as low as 27.2kWhr/t.

World: The ferrous slag market in 2014 was worth an estimated US$30bn. It is forecast to grow by 1.6% to US$36bn by 2025, according to a new report from Smithers Apex.

'The Future of Ferrous Slag to 2025' examines the factors affecting ferrous slag production to provide a basis for forecasting the quantities likely to be produced up to the year 2025. It looks at current and possible future applications of slag and describes the trends in regulations affecting the market.

The current potential market supply of blast furnace slag is estimated to be 447Mt, of which almost 295 – 300Mt is granulated blast furnace slag (GBS). The making of steel from blast furnace iron through oxygen conversion (or basic oxygen furnace, BOF) contributes a further 140 – 145Mt of slag and the alternative route to steelmaking through electric arc furnaces (EAF) supplies more than 50Mt.

According to the report, the total output of ferrous slag is expected to increase only slowly, or to stagnate and decline marginally, because EAF steelmaking capacity is expected to grow faster than BF-BOF steelmaking capacity. This effect can already be seen in the US, where the tonnage of steel produced by EAF plants overtook the tonnage produced by BF-BOF plants in the 1990s. Since then, further decline in BF-BOF output has led US-cement and aggregate companies to start importing slag and to invest in new coastal slag treatment installations dependent entirely on imported supplies.

Changes in the Chinese steel industry will contribute substantially to this rising share of EAF steel in world supply. China produces half of world crude steel and BF-BOF steelworks account for over 80% of China's steel output. The Chinese government is campaigning to replace small and inefficient steelworks with EAF installations.

In the current market, it is estimated that total production of ferrous slag of all types amounts to US$24.5bn. While it is possible that supply will increase only slowly, if at all, there is growing demand for slag products, which is likely to ensure that the value per tonne of slag products will increase. The growth in demand has been accelerated by environmental legislation and by direct intervention from governments and international bodies.

Demand for slag products has been affected by market cycles. The collapse of construction activity in Europe, as a consequence of the financial crisis, reduced sales of slag for cement and aggregate use. Over the medium term, there is every prospect that demand will outrun supply. Currently GGBS meets only an estimated 17% of global cement supply. Slag products as aggregate substitutes meet only 1 - 1.5% of total demand.

UK: The Competition and Markets Authority (CMA) has welcomed the sale of plants by Lafarge Tarmac and Hanson.

In the Competition Commission's (CC) market investigation published in January 2014, the CC had ordered Lafarge Tarmac to sell one of two cement plants and Hanson to sell one of its ground granulated blast furnace slag (GGBS) plants to enhance competition in the cement and GGBS markets in the UK. Lafarge Tarmac appealed the CC's decision to the Competition Appeal Tribunal. However, in December 2014, the European Commission cleared the merger between Lafarge and Holcim, provided it divest certain assets to a new market entrant. In accordance with those commitments, the Lafarge Tarmac business in the UK, with the exception of the Cauldon cement plant, was sold to CRH and the legal challenges brought by Lafarge Tarmac to the CC have been withdrawn.

In addition, Hanson completed the sale of its GGBS plant in Scunthorpe, as required by the CC's report, to Francis Flower on 31 July 2015. This news means that the Competition and Markets Authority (CMA) has completed the divestment remedies arising from the CC's report.

UK: Mineral resources company Francis Flower has announced the acquisition of the Scunthorpe ground granulated blast furnace slag (GGBS) plant from Hanson Cement.

The business is capable of producing more than 500,000t/yr of GGBS and supplies customers in the Midlands and north of England. GGBS complements Francis Flower's existing range of high quality powdered minerals, which originate as by-products from various industries. This reduces the need for mineral extraction and landfill, delivering sustainable environmental solutions for its customers. The acquisition reflects both Francis Flower's commitment to developing its range of products and services in this sector and the credibility it has for making the most of mineral resources.

"We are absolutely delighted and very excited to announce this new acquisition. GGBS is an excellent fit to our existing product range and will help further our longstanding relationships in this sector," said Adrian Willmott, Chairman and CEO of Francis Flower. "We have a proven track record of making the most of mineral resources, reducing the need for mineral extraction as well as landfill and delivering sustainable solutions for our customers. We are very much looking forward to working with the team in Scunthorpe and developing the opportunities in the GGBS market as the UK construction sector continues to grow."