Displaying items by tag: strength

Anhui Conch Cement held an event in Wuhu, China, this week showcasing its new artificial intelligence (AI) model for the cement sector. The cement company and Huawei started the project in April 2024 with the support of the China Building Materials Federation. The companies say they have now identified over 200 “promising AI application scenarios across 15 categories” across the entire production process from quarrying to packaging and logistics. Conch has set up an AI training centre using the Huawei Cloud Stack product. It is using Huawei’s Pangu prediction, computer vision (CV) and natural language processing (NLP) models to create an AI operating system that integrates central training, edge inference, cloud-edge synergy, continuous learning and ongoing optimisation.

Thankfully Huawei gave some examples of what this actually meant for operators in the real world. The model is able to give real-time recommendations of key quality features enabling the prediction of three-day and 28-day clinker strength. The predicted strength values closely match test results, with deviations within 1MPa and an accuracy rate exceeding 85%. Other benefits include reducing kiln fuel consumption by 1%, monitoring and managing various components and machines along the production line, staff safety gains and creating a ‘smart digital assistant’ that can answer technical questions from employees.

Little of this seems particularly novel, so far, compared to what other companies are already doing in this field. For example, ABB said in early 2022 that it was using machine learning to predict 28-day strength on the day of sampling and in 2023 that it was doing it using production data provided every two - three hours. Another example is the work that Inform does using AI-based software to support logistics for heavy building materials. Plenty of other western-based companies also offer production optimisation and/or predictive maintenance products.

Conch’s use of an NLP model to create a knowledge base assistant does seem new for the cement sector. Although how specific the software running it might be to one business or industrial area remains to be seen. One could easily imagine this kind of product being sold to lots of different kinds of industries in the manner of current enterprise style software. Along these lines though, Juan Beltrán, digital manager of global sales excellence at Holcim, told McKinsey in an interview about Holcim’s pilot project in Spain testing an AI-enabled copilot customer-ordering assistant via WhatsApp.

Recent events in AI for the cement sector include ABB’s agreement to work with UK-based Carbon Re in late 2024. This collaboration was intended to combine ABB's expertise in automation and process control with Carbon Re's AI and machine learning technologies. It followed a pilot at a cement plant in the Czech Republic. On the producer side, Holcim said in mid-2024 that it was preparing to expand the use of AI-based software to 100 production plants by 2028. It noted that it had installed the system at 45 plants so far at the time of this announcement and that it was using a predictive maintenance solution from software supplier C3 AI. Titan Cement said that it had invested in Spain-based AI software supplier Optimitive in February 2025. Then, Cemex announced this week that it too had invested in Optimitive, via its corporate venture capital arm Cemex Ventures. Molins has also worked with Optimitive.

What isn't being disclosed much are the examples of the mistakes of introducing AI into cement production. These are valuable learning opportunities for any company implementing this kind of software. However, the developers and cement producers are extremely unlikely to admit anything publicly. Global Cement Weekly has heard off-the-record information previously about AI projects at cement plants that have gone wrong but we can’t reveal it either. To his credit though Beltrán mentions an incident, in his interview with McKinsey, where the WhatsApp ordering assistant was tricked during testing into almost placing an order for a truck of gazpacho soup!

We’re still watching how AI is being deployed in heavy industries such as cement. The announcement by Conch is exactly the kind of thing its peers are doing around the world. So far what they’ve done is impressive but not unique. Yet, China’s large but shrinking cement sector and its determination to develop its own AI-based software sector may start to deliver more cutting-edge advances in the future. Companies elsewhere are also pressing ahead to find out how AI products will deliver efficiency gains.

India: Nuvoco Vistas has launched Duraguard Microfibre Cement, a fibre reinforced cement. The cement’s clinker is 48-52% tricalcium silicate, with low tricalcium aluminate, and contains electrostatically precipitated dry fly ash. The producer says that it offers enhanced bonding, crack resistance, strength and durability and reduced permeability, as well as a smoother surface finish, compared with ordinary Portland cement (OPC). Nuvoco Vistas first applied for a patent for the product in mid-2018.

Managing director Jayakumar Krishnaswamy said "We prioritise innovation. Our Construction Development and Innovation Centre (CDIC) is dedicated to creating sustainable and innovative products that meet the highest global standards. The awarded patent validates our unwavering commitment to innovation and keeps us in the forefront of pioneering advances in the cement industry, delivering exceptional quality and responsible business practices."

Egypt: Researchers at the University of Cairo have used nanomaterials from agricultural wastes to produce biocement with 'increased strength and durability' compared to ordinary Portland cement (OPC). The study employed microbially induced calcite precipitation (MICP) with the addition of carbon nitride nanosheets and ash from waste maize cobs. Besides its improved physical performance, the researchers also found that their biocement offers improved endurance against water permeability.

Sri Lanka: Bogala Graphite has launched its new cement-strengthening graphene oxide additive. Daily FT News has reported that potential investors will be able to discuss the new technology with Bogala Graphite at the forthcoming Industry 4.0 and Industry 5.0 exhibition later in February 2023.

Philippines: Holcim Philippines carried out 70 upgrades aimed at increasing automation in its operations during 2022. The projects aim to optimise cement production, generate cost savings and ensure best safety practices. The Manila Times has reported that new Industry 4.0 initiatives include equipment monitoring systems offering 90-day performance projections, software capable of predicting cement's strength development and drones to replace visual inspections in remote spaces.

Holcim Philippines said that it is currently exploring the use of new predictive technologies in its operations.

China: China Building Materials Academy has patented a new 3D printing method which uses short rebars to reinforce printed layers. The developer says that this will enable builders to ensure structural strength without the disruption caused to 3D printing by the long rebars of conventional building skeletons.

China Building Materials Academy said that an 'inverted U-shaped or inverted L-shaped short rebar is vertically inserted into the cement slurry layer, wherein the bending mechanism comprises two bending members, separately disposed on two sides of a clamp.'

UK: Karbonite UK has developed a new supplementary cementitious material consisting of mineral feedstock, geopolymers and waste biomass. The process also involves CO₂ sequestration and liquid-infused CO₂ absorption within the mineral structure. The material, called Karbonite, is activated at 750 – 850°C, releasing water, which is captured for recycling. Its CO2 emissions are 2.7kg/t, according to Karbonite UK. The developer says that Karbonite ground with 50% clinker yields a cement of equal compressive strength to ordinary Portland cement (OPC).

Karbonite UK is currently preparing a final report on the product for a major cement producer.

Managing director Rajeev Sood said “Karbonite offers a wealth of potential to an industry targeting net zero. We are excited to talk to cement and concrete producers about how they could integrate Karbonite technology into their existing process.”

Canada: Progressive Planet Solutions has successfully produced a new supplementary cementitious material (SCM) called PozDE from diatomaceous earth. The company says that it developed PozDE using calcium bentonite-containing diatomaceous earth from the Red Lake mine in Kamloops, British Colombia. The SCM’s seven-day and 28-day strength activity index (SAI) values are 101% and 120% those of ordinary Portland cement (OPC) respectively, while its water demand is lower at 98%.

Chief operating officer Ian Grant said “It is uncommon to see SCMs exceed the 7-day strength of the control Portland, so we are excited to see better strength while indicating lower water demand."

US: ASGCO has launched its Grizzly Screw-Splice, a conveyor belt splicing and fastening system. The splice is available in various rubber compounds with a tensile strength of up to 1650PIW. The supplier says that the product is stronger, wears less and has a lower-profile silhouette than traditional metal fasteners for conveyor belts. It features self-tapping and self-drilling screws that uphold the toughness of the conveyor belt by passing through the belt carcass instead of creating holes.

Kenya: Affordable housing joint venture 14Trees and UK-based development finance company CDC Group have 3D printed a complex of 52 houses near Kilifi, Kilifi county. The development, called Mvule Gardens, uses an IFC-EDGE Advanced-certified sustainable design to support the ecological regeneration of its locale. Swtizerland-based Holcim, which holds a stake in 14Trees, supplied its TectorPrint ink for use in buildings’ walls to increase strength.

Holcim CEO Jan Jenisch said “We are excited to be building one of the world’s largest 3D-printed affordable housing projects in Kenya. With today’s rapid urbanisation, over 3bn people are expected to need affordable housing by 2030. This issue is most acute in Africa, with countries like Kenya already facing an estimated shortage of 2m houses. By deploying 3D printing, we can address this infrastructure gap at scale, to increase living standards for all.”