Displaying items by tag: Research

Spain: Cement Science Group (CemSciG) and the University of Málaga (UMA) have received a US$50,000 donation from US-based CSA Research for their research into reduced-CO₂ cement production. The funding will continue the partners’ work at UMA’s department of inorganic chemistry, crystallography and minerology into alternative methods of cement production. Titles of their on-going projects include ‘Optimisation and Processing of LC3 Eco-Cements with Spanish Clays,’ ‘Microstructure Analyses of Limestone Calcined Clay Cements by Advanced Synchrotron Techniques’ and ‘Reduction of Cement Industry CO₂ Emissions without Loss of Mechanical Properties.’

China: Saudi Aramco and China Building Materials Academy (CBMA) have launched the Nonmetallic Excellence and Innovation Center (NEXCEL) in Beijing. The centre will leverage CBMA's expertise and resources to promote the development and application of nonmetallic technologies offering superior lifecycle cost, efficiency and environmental performance to metal-based alternatives in Chinese construction.

Saudi Aramco’s senior vice president of technical services Ahmad Al-Sa'adi said “We are excited to be part of this important initiative with CBMA, to jointly advance the use of nonmetallics in building and construction in China. At Aramco, we have been developing and deploying nonmetallic solutions within our own operations for more than 20 years as they offer superior lifecycle cost, efficiency and environmental advantages over their metal alternatives.”

Switzerland/Germany: Holcim has announced the launch of a strategic partnership with inductive charging technology developer Magment to test and commercialise magnetisable concrete technology for use in roads. The technology will power and charge electric vehicles as they drive on roads fitted with Magment. Another possible application is in industrial floors, to charge robots and forklifts.

Holcim’s Global Innovation Center head Edelio Bermejo said: “At Holcim we are innovating to put concrete at the centre of our world’s transition to net-zero. With Magment, we are excited to be developing concrete solutions to accelerate electric mobility. Partnering with start-ups all over the world, we are constantly pushing the boundaries of innovation to lead the way in sustainability.”

China: Huaxin Cement and Hunan University have started a pilot production line that uses flue gas from a cement production line to manufacture concrete bricks. The process, being tested at the Huaxin Wuxue Industrial Park in Hubei Province, absorbs CO₂ from the flue gas and uses the heat of the gas to cure the bricks, according to the Xinhua News Agency. The average compressive strength of the bricks is above 15MPa. It is estimated that a production line with a brick output of 100m/yr could absorb 26,000t/yr of CO₂.

US: Performance materials and technologies conglomerate Honeywell has entered into a collaboration with the University of Texas at Austin for the development of carbon capture systems. Honeywell has obtained a licence to use the university’s proprietary advanced solvent technology. The University of Texas at Austin will provide consulting services for the company as it seeks to develop a carbon capture system for industrial implementation using the technology. Honeywell will target ‘hard-to-abate’ CO₂ emitting industries such as cement to which to supply its system.

University of Texas at Austin McKetta Department of Chemical Engineering professor and Texas Carbon Management Program (TxCMP) lead Gary Rochelle said “We are thrilled that our decades of research has led to carbon capture technology that can significantly reduce carbon emissions. The licensing agreement with Honeywell enables us to commercially scale this in ways that can make major contributions toward zero emissions efforts to address global warming and to reduce pollutants in surrounding communities.”

India: ACC and Ambuja Cements have partnered with the Indian Institute of Technology Delhi (IITD) to develop a range of calcined clay cements with 50% lower CO₂ emissions than Ordinary Portland Cement (OPC). The collaboration will vary clinker, calcined clay and limestone levels in calcined clay cements in order to ascertain their effects on its performance. France-based Holcim Innovation Centre will fund the research.

Holcim India chief executive officer and managing director Neeraj Akhoury said "Through our extensive research and development setup, we consistently strive to develop new low-CO₂ materials for the construction industry. Calcined clay cement is one such avenue to make a significant quantitative difference in the industry and further accelerate our sustainability drive. Our academic partnership with IITD is a big step towards building a greener future and we are excited to collaborate with the best minds in the country."

The producers have previously partnered with the Indian Institute of Technology Madras (IITM) to study low-CO₂ binders with alternative reinforcements and with the Indian Institute of Technology Hyderabad (IITH) to develop smart sensing technology for continuous on-site strength evaluation of a concrete structure.

India: RHI Magnesita has opened its new Indian regional research and development centre. The centre is its fifth of its kind globally, and joins existing facilities in Austria, Brazil, China and the US.

The company is in the process of implementing a refractory production capacity expansion plan worth a total of US$53.8m. The plan consists of upgrades to its Bhiwadi plant in Rajasthan, Cuttack plant in Odisha and Vizag plant in Andhra Pradesh. It has already completed US$6.72-worth of the work with a 30% expansion at the Vizag plant. The company says that the remaining upgrades consist of both the establishment of new lines and the automation of existing ones.

RHI Magnesita India managing director and chief executive officer Parmod Sagar said “The centre will help us to better understand local market needs and to react faster to customer requirements. This is a world-class facility that will work closely with our global research and development network for local raw materials development, will provide solutions support for customer’s performance improvement projects and will support local manufacturing in the three India plants.”

South Korea: Researchers at Incheon National University have discovered an optimal conductive carbon fibre volume for cement-based conductive composites for use in net-zero energy buildings. The team reported that a 1% conductive carbon fibre content facilitates maximum energy generation from the movements of occupants and the weather against floors and walls. It also enables the storage of electricity at safe voltages. The product is based on triboelectric nanogenerator (TENG) technology.

The team published its results in the journal Nano Energy in November 2021.

Japan: Taiheiyo Cement and the University of Tokyo have patented a carbon capture system based on a new carbon fixation method. The method passes CO₂-bearing gas over 40mm granules of a hardened cementitious material at 75 - 100°C. The granules then fix the CO₂ from the stream to themselves, for utilisation or storage.

Volvo Autonomous Solutions and Holcim Switzerland announced this week that they are testing and developing the use of autonomous electric haulers in a limestone quarry. It’s a two-part project, as being able to run electric dump trucks will help Holcim to meet its sustainability goals by switching to renewable energy supplies. Automating the control of the trucks then lets Holcim work towards its digitisation targets as part of its ‘Plants of Tomorrow’ initiative. Holcim Switzerland has also been running a drone programme at the plant (see GCW520) and has been using a few electric concrete mixer trucks since early 2021.

The use of autonomous haulage systems (AHS) in quarries by the cement industry seems to mark the start of something new. As far as Global Cement Weekly can tell, the Volvo Autonomous Solutions - Holcim Switzerland project is the first one in the cement sector that has been announced publicly. Most of the examples of AHS to date have been for heavy mining applications such as iron ore, copper, oil sands and coal. Automation in limestone and aggregate extraction has been slower. One recent example in the aggregate sector was announced in late 2020 when Norway-based technology company Steer said it had signed a contract with Romarheim to supply three autonomous dump trucks for use in a stone quarry. Previously Steer has used its vehicles to clear unexploded ordinance for the Norwegian army.

AHS have been around commercially since the mid-2000s when Komatsu tested and then deployed one at a copper mine run by Codelco in Chile. By September 2021 Komatsu said it had commissioned over 400 trucks with its autonomous system and that these had hauled over 4Bnt of materials. For its part Caterpillar says it started its first automated vehicle research program in 1985 and was even testing a pair of Cat 773 dump trucks in the 1990s. However, it then took a pause before resuming after 2000 and starting its commercial projects in the 2010s. In April 2020 it hit 2Bnt of hauled materials by AHS using its MineStar Command product. Hitachi, Liebherr and Belaz have also been working on their own AHS products in conjunction with third party technology providers and these were developed later in the 2010s. Most of these products are complimentary control systems that have been added to existing models or can be added to new ones. Autonomous vehicle company ASI is the other big name in the field with its Mobius product. Unlike the other systems, this is purely a retrofit product. ASI does not make its own vehicles. Komatsu and Caterpillar have also developed retrofit kits for their systems.

Most of the products above look mostly like normal trucks with the addition of extra kit. Volvo and Scania have also been working on AHS but their products have been taking it further by removing the cab entirely. Scania launched its AXL product in September 2019. Volvo launched its Volvo Autonomous Solutions subsidiary in 2020 and its Tara system electric dump truck the same year. Volvo had previously planned to run a pilot for its Tara truck with Harsco Environmental carrying slag at the Ovako Steelworks in Hofors, Sweden. Unfortunately the pilot was disrupted by the start of the coronavirus pandemic shortly after it started.

It’s early days yet with the use of autonomous vehicles in the quarries of the cement and aggregates sectors. Obvious advantages are additional operational hours, better worker safety and reduced costs. As ever with automation, cutting out human jobs would be one disadvantage for the current workers at least. There is also the possibility that an experienced human driver using efficiency software tools might be better than a fully AHS. A challenge in the field is developing open standards or methods to allow autonomous machines to communicate or work with both products by the same manufacturer and its rivals, as well as with conventional human-driven ones. Another challenge is for the mining and quarrying industry to determine how flexible it wants its heavy vehicles to be. One thought to end with this that an autonomous vehicle with a cab and a steering wheel can still be driven by a human. The cab-less vehicles being tested by Volvo and Scania would be rather less useful if they get into a situation where the software can’t cope. Lots to consider.

If readers are aware of other examples AHS in the cement industry, please let us know at This email address is being protected from spambots. You need JavaScript enabled to view it.