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News Displaying items by tag: slag cement

Displaying items by tag: slag cement

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Ferrous slag market forecast to rise by 1.6% to 2025

04 December 2015

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.

Published in Global Slag News
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JSW Cement orders eight slag grinding units from KHD

06 August 2015

India: JSW Cement has ordered eight 90t/hr roller press slag grinding units from KHD Humboldt Wedag India Private Ltd (India) and KHD Humboldt Wedag GmbH (Germany) for its plants in India.

Published in Global Slag News
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Gebr. Pfeiffer SE wins order for cement vertical roller mill in Saudi Arabia

14 May 2015

Saudi Arabia: The Chinese General Contractor Chengdu Design & Research Institute of Bldg Materials Industry Co Ltd in Chengdu has placed an order with Gebr. Pfeiffer SE for the supply of an MPS 3070 BC cement mill for Readymix in Saudi Arabia. The 1100kW drive power mill will grind 30t/hr of granulated blast-furnace slag and 46t/hr of Ordinary Portland Cement to a fineness of 4000cm²/g and 3600cm²/g, respectively. Delivery of the equipment is scheduled for 2015.

Published in Global Slag News
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Essroc to acquire Holcim's slag cement grinding facility in New Jersey

24 April 2015

US: Essroc Italcementi Group has signed an agreement with Holcim to purchase its slag cement grinding facility in Camden, New Jeresy. As part of the transaction, Essroc will also obtain Holcim's cement terminal in Everett, Massachusetts. The acquisition will finalise when the pending Holcim and Lafarge merger completes later in 2015.

"The acquisition of the Camden slag grinding facility reiterates Essroc's commitment to the northeast market," said Francesco Carantani, Essroc's president and chief executive officer. "With the focus on sustainability and durability, there is a projected growth in the demand and usage of slag cement."

The Camden facility can produce upwards of 700,000t/yr of slag cement. Essroc currently produces slag cement at its Picton, Ontario, and San Juan, Puerto Rico, cement plants and at its slag grinding facility in Middlebranch, Ohio. With the addition of Camden, Essroc has a combined annual production capacity in excess of 1Mt/yr. Holcim's staff in Camden and Everett will join Essroc once the transaction completes.

Published in Global Slag News
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Korea develops cement from reduced metal slag

13 March 2015

Korea: Korean researchers have developed a new cement-producing technology using reduced iron and steel slag.

On 11 March 2014, the Korea Environmental Industry & Technology Institute (KEITI) and the R&D Centre for Valuable Recycling announced that they have succeeded in producing rapid-hardening cement from metal slag reduced during the scrap metal recycling process, adding that the technology is suitable for commercialisation immediately.

Korean authorities bury 720,000t/yr of reduced metal slag in landfills. Using the new technology, Korea will be able to save US$3.79m in reduced slag disposal costs and produce US$254m of rapid-hardening cement. Korea has been relying on imported rapid-hardening cement for more than 80% of its domestic use.

The new technology is also expected to result in a 0.5Mt/yr reduction in CO2 emissions, as it doesn't require the high-temperature melting of slag that is used in the current rapid-hardening cement manufacturing process. The two organisations added that the world could be supplied with US$6bn of cement if the technology was applied to the 17Mt/yr of reduced metal slag produced globally.

Published in Global Slag News
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Dalmia Bharat benchmarks slag cement at Bokara plant

23 December 2014

India: Dalmia Cement Bharat (DCB) is benchmarking a brand of Portland Slag Cement at its Bokara grinding plant in Jharkjhand. The brand will be sold under the Dalmia name in Jharkjhand, Bihar and Bengal.

"Bokaro cement plant is being benchmarked to global thresholds of manufacturing excellence in producing Portland Slag Cement (PSC) under the Dalmia Cement brand name. Eastern India is a highly promising market with sufficient cement demand," said Amandeep, Business Head and Director, Bokaro Jaypee Cement Limited.

Published in Global Slag News
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