Cement News tagged under: manufacturing technology

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Buckets of flexibility

27 July 2022, Published under Cement News

In the cement industry high-capacity bucket elevators are used to lift a wide range of bulk materials, including raw mix, limestone, coal, raw meal, clinker and cement. Gambarotta Gschwendt recently received an order for several bucket elevators for a new cement line in Qatar. The order included its new ESPLV bucket elevator, suitable for material flows. By Gambarotta Gschwendt Srl, Italy. Gambarotta Gschwendt ESPLV bucket elevators are capable of lifting over 2000m 3 /h Five...

Beyond primary measures

25 July 2022, Published under Cement News

Under tightening emission legislation, it may be time to consider new technologies and products to remain in compliance. Denmark-based Umicore offers a variety of catalysts for the removal of NO x , NH 3 , dioxins, CO and various volatile organic compounds (VOCs). Globally several cement plants are today operating with a Umicore catalyst. This article presents selected case stories from some of the company’s catalyst installations in cement plants. By Anders Rooma Nielsen, Umicore, Denmark. ...

Graphene’s future potential

18 July 2022, Published under Cement News

Reducing carbon emissions in the cement industry is a top priority, but how to achieve that is the subject of considerable research and development. For First Graphene Ltd and Fosroc International, graphene shows great promise for significant CO 2 reductions and performance enhancements. by Michael Watson, First Graphene Ltd, Australia, and Dr Martyn Whitehead, Fosroc International Ltd, UK. Graphene consists of carbon atoms arrange in lattice-like structures just a few atoms thick ...

LC3 in codes and standards

11 July 2022, Published under Cement News

Reducing the carbon footprint of the concrete industry is a priority in the face of global warming. Limestone calcined clay cements (LC 3 ) provide one of the best options to reduce CO 2 emissions. For optimal implementation, but also to facilitate other low CO 2 solutions, standards that regulate the cement and concrete sector need be adapted quickly. In this article, two main standardisation regions are reviewed in light of the feasibility of adoption and deployment of LC 3 technology. ...

Ensuring the quality of calcined clay cement

04 July 2022, Published under Cement News

While calcined clays are fast becoming a sustainable alternative to reduce carbon emissions, ensuring the quality of calcined clay cement is key to gaining widespread market acceptance. By Prof Fernando Martirena-Hernandez and Dr Roger Almenares-Reyes, Ecosolutions, Switzerland. Figure 1: database for strength following EN-197 protocol 17 Clays are rock, soil or ore composed fundamentally of a clay mineral or a mixture of several types of clay mineral, which vary according to t...

Asia Cement’s SWAP

08 June 2022, Published under Cement News

The trend for longer bags in baghouses requires cement plants to review their bag cleaning systems. Gas filtration specialist CTP Team recently installed its advanced SWAP technology at Asia Cement’s Pukrang plant in Thailand, which has improved the efficiency and reduced the cost of its bag cleaning system. By Roberto Binago, CTP Srl, Italy. Figure 1: SWAP technology compared with traditional bag cleaning technology In the cement sector, baghouses equipped with long bags are in...

The low-carbon cement bet

10 May 2022, Published under Cement News

Cementos Argos has developed a low-carbon cement using alkaline activation technology to formulate hybrid cements. This type of green cement allows the increased use of supplementary cementitious materials activated with additives which significantly reduces the clinker content and, therefore, CO 2 emissions. By MF Díaz-Burbano, Cementos Argos, Colombia. To activate the SCM correctly, additives are fed into the process using an accurate dosage system Supplementary cementitio...

Taking the magic out of machine learning

20 April 2022, Published under Cement News

Artificial intelligence (AI) and its subcomponent machine learning (ML) are almost everywhere in industrial processes, and cement manufacturing is no exception. 1,2 Despite the common use of these terms, how a model is built and implemented remains a mystery to many. Holcim Innovation Center demystifies the process by stepping through a machine learning project.  By Louise Harding and Xavier Cieren, Holcim Innovation Center, France. Figure 1: machine learning implementation steps ...

Influencers of strength

21 March 2022, Published under Cement News

Over the years several factors that influence the strength of cement have been determined. These include mineralogy, chemistry, microstructure and process.   Figure 1: central irregular alite growth with many inclusions surrounded by clearer alite growth The various influences on the strengths achieved by Portland cements has been the subject of a number of research projects in the laboratory as well as analyses of industrially-produced materials over the years. A useful method ...

Feeling the heat of mercury

21 February 2022, Published under Cement News

Cement kiln operators, particularly in cases of co-incineration, may feel the heat when considering upcoming government regulations regarding mercury emissions. Therefore, it is recommended to invest in upgrading mercury monitoring systems if existing ones use out-of-date technology that no longer complies with mercury monitoring standards. By Gasmet, Finland. Continuous mercury monitoring systems help cement plants avoid over-the-limit emissions In an effort to decrease fossil ...