Displaying items by tag: Slag

India: Gallantt Industry has ordered a Ready2Grind compact grinding plant from Germany-based Gebr. Pfeiffer for its Gorakhpur cement plant in Uttar Pradesh. The supplier says that the 65t/hr-capacity plant will grind cement to a Blaine fineness of 3750cm²/g. The planned MVR 2500 C-4 represents the medium size of the portfolio of the supplier’s modular mill range. Due to the planned installation in the vicinity of a steelworks, blast furnace slag, steelworks slag from an induction furnace and fly ash from an in-house power plant will also be considered as supplementary cementitious materials addition to clinker and gypsum. The mill will be equipped with a 1270kW main drive and an integrated SLS 2650 VC high-performance classifier.

UK: HeidelbergCement subsidiary Hanson has installed a solar and wind-powered hydrogen generation demonstration unit at its Port Talbot Regen ground granulated blast furnace slag (GGBFS) plant in Port Talbot in Neath Port Talbot. The company says that the project is part of a collaboration with Swansea University’s Energy Safety Research Institute under the European Research and Development Fund’s Reducing Industrial Carbon Emissions initiative. The hydrogen generated by the installation will replace natural gas in the GGBFS plant’s burners.

Head of sustainability Marian Garfield said, “It is estimated that cement is the source of just under 2% of UK CO₂ emissions. With demand for cement and cement replacement products predicted to increase by 25% by 2030, researchers and industry are working hard to reduce the level of CO₂ emissions associated with production. As a leading manufacturer, we take our responsibility very seriously. In the UK we have already achieved a 30% reduction in CO₂ emissions since 1990 across the business and have set an ambitious new target of a 50% reduction by 2030 from the same baseline. We are constantly looking to improve energy efficiency and carbon reduction at our cement and Regen GGBFS plants, so we are delighted to be involved with this innovative research project.”

France: Hoffmann Green Cement Technologies has begun construction of its second cement plant, called H2. The company will build the plant next to its existing H1 plant in Bournezeau, Vendée, using its clinker-free cement made from blast furnace slag, clay and gypsum. It will have a capacity of 250,000t/yr and cost Euro22m.

Co-founders Julien Blanchard and David Hoffmann said “This second plant is a key milestone in our development plan in order to increase our production capacity. H2 will enable us to address the growing demand for our clinker-free low-carbon cement, as we have recently signed a number of partnerships with key construction players such as Groupe GCC, KP1, Capremib, Cemex and Eiffage Génie Civil. We would like to congratulate our teams, as this second plant is the result of a multitude of challenges taken up in 2020 in order to increase production capacity. It is the rare combination of an exceptional industrial performance and a minimised environmental impact. This structure demonstrates our industrial excellence and perfectly and genuinely materialises our intent to decarbonise the construction sector.”

Head of new construction Olivier Lefelle said “This second plant represents a major and structuring step. The choice of a vertical model for the mixing tower is an innovative concept in the construction sector and is perfectly in line with Hoffmann Green’s responsible vision. Furthermore, by using Hoffmann cement for its construction, this building site will enable CO₂ emissions to be reduced by around 20,000t.”

Australia: Adbri subsidiary Cockburn Cement has approved a US$152m upgrade to its Kwinana grinding plant in Western Australia. It says the investment will consolidate the cement operations at its Kwinana site. At present clinker is transported by truck from the Kwinana Bulk Terminal to cement mills at both the Kwinana grinding plant and the company’s integrated plant at Munster. It will increase its production capacity to 1.5Mt/yr from 1.1Mt/yr at present. The project is expected to save the company US$15m/yr due to better energy, transport and maintenance efficiency when the plant is commissioned by mid-2023. The producer will fund the investment through existing debt facilities.

The upgrade project includes: a bulk materials conveyor linking the Kwinana Bulk Terminal (KBT) facility to a new 110,000t clinker storage shed, incorporating an automated reclaim system, to eliminate road transport and minimise clinker handling using mobile equipment; a slag feed system that will handle granulated blast furnace slag and additives such as gypsum and limestone; a ball mill circuit with the installation of two new cement mills capable of grinding slag and clinker; and a new 21,000t finished product storage, truck loading and weighbridge infrastructure for storage and despatch.

Ireland: Ecocem Group has appointed John Reddy as Group Quality and Innovation Application Manager. In the new role he will lead a growing technical team across Europe including Ireland, UK, Sweden, Benelux and France. He is tasked with developing the product pipeline for the group and assisting with product commercialisation across Europe.

Conor O’Riain, Group Managing Director said, “His undeniable commitment to Ecocem and the cement industry is unquestionable and this new role signifies the growth of Ecocem products across Europe. His appointment marks his advocacy to improving the standard of ground granulated blast-furnace slag (GGBS) cement production across the industry”.

Reddy joined Ecocem Ireland in 2004 and has worked for the group in various technical roles. He is a chartered engineer and is a graduate of Civil Engineering from the Dublin Institute of Technology (DIT) and holds an MSc in Advanced Concrete Technology from Queens University, Belfast. His master’s thesis ‘Investigating the thermal activation of GGBS concrete’ was published at the 9th International Concrete Conference and subsequently won the Irish Concrete Society, Sean DeCourcy student award in 2017.

US: CRH subsidiary Ash Grove Cement says that it is undertaking an upgrade of its Port Manatee, Florida deep water cement terminal to install a high capacity FLSmidth Kovako unloader and modernise existing material transfer and electrical systems, as well as establishing self-loading capabilities. The aim of the upgrade is “to improve Ash Grove’s capacity to import cement clinker, slag and fly ash to meet the existing and future needs of customers in the Florida and South Georgia markets.

Regional president Monica Manolas said, “The underlying fundamentals in the Florida market are positive with good population and employment growth. The upgrade of the Port Manatee import terminal will expand our capabilities and strengthen our ability to meet growing demand in the region.”

The company says that construction will begin in early 2021 and the upgraded terminal will open in late 2021.

Bangladesh: Cement producers imported US$760,000-worth of raw materials in the 2020 financial year which ended on 30 June 2020, down by 13% year-on-year from US$874,000 in the 2019 financial year. Clinker, calcareous stone, granulated blast furnace slag (GBFS) and gypsum imports totalled 18.6Mt, down by 11% from 21.0Mt, compared to annual growth of 15 - 20% since 2010.

The Daily Star newspaper has reported that this was due to decreased cement demand, with sales falling to 65,000t in April 2020 from 125,000t in March 2020 on account of the start of the nationwide coronavirus lockdown. Premier Cement managing director Amirul Islam said, “We are not getting the benefits we expected from the government. The sector’s capital is gradually running out, so all kinds of discretionary tax cuts are needed to save this industry.”

Bangladeshi cement producers import raw materials from Thailand, Vietnam and China.

Singapore: Jurong Port has ordered three Siwertell ship unloaders from Bruks Siwertell to handle cement imports. The port’s cement terminal already has three Siwertell ship unloaders that have been used for over 20 years. Two of these will be replaced as part of the upgrade project.

The three new ST 490-M screw-type rail-travelling unloaders will each discharge cement, fly ash and cement slag from vessels up to 50,000dwt at a continuous rated capacity of 800t/hr. Two of the new unloaders are scheduled for delivery in May 2022 and the third by the end of 2022. All will be fully assembled prior to delivery and transported by heavy-lift ship. Final commissioning and performance tests will be carried out in Jurong Port.

Japan: Taiheiyo Cement has partnered with JFE Steel and the Global Institute for Environmental Technology to develop a carbon capture and storage system. The system will use wet alkaline earth metals extracted from steel slag to produce carbonates from exhaust gases at cement and steel plants. The partners are investigating the possibility of using these carbonates, specifically calcium carbonate and magnesium carbonate, as additives in cement production at Taiheiyo Cement’s plants. Taiheiyo Cement president Masafumi Shigehara said, “With the effects of climate change becoming apparent both in Japan and overseas, the importance of global warming counter-measures is increasing.”

Australia: A paper published in the journal Resources, Conservation and Recycling has reported that concrete made with treated slag is 8% stronger than standard slag concrete and 17% stronger than concrete made with conventional aggregates. A Royal Melbourne Institute of Technology (RMIT) team produced treated slag concrete using slag that had absorbed phosphate, magnesium, iron, calcium, silica and aluminium during use in wastewater treatment. Researcher Biplob Pramanik said, “The things that we want to remove from water are actually beneficial to concrete.” Pramanik said that the findings have promising implications for the water and concrete sectors within the circular economy.