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TECHNOLOGIE DU B%u00c9TONwww.cpi-worldwide.com PBI %u2013 Pr%u00e9fa B%u00e9ton International %u2013 4 | 2025 43R%u00e9sum%u00e9 Les r%u00e9sultats des %u00e9tudes montrent que l'optimisation granulom%u00e9trique du liant, combin%u00e9e %u00e0 des adjuvants acc%u00e9l%u00e9rateurs, est tr%u00e8s bien adapt%u00e9e au d%u00e9veloppement de mortiers %u00e9co-efficaces %u00e0 faible teneur en clinker et %u00e0 haute r%u00e9sistance initiale. Comme c'est en particulier le liant ou le rapport eau/liant qui est responsable de l%u2019%u00e9volution de la r%u00e9sistance du b%u00e9ton, ces connaissances peuvent %u00eatre facilement transf%u00e9r%u00e9es du mortier au b%u00e9ton.Les compositions de mortier avec une teneur en clinker de 40 % en poids maximum pr%u00e9sentent des valeurs de r%u00e9sistance %u00e0 la compression sup%u00e9rieures %u00e0 15 MPa apr%u00e8s 8 heures, %u00e0 la suite de l'optimisation de la granulom%u00e9trie du laitier granul%u00e9 en combinaison avec des adjuvants acc%u00e9l%u00e9rateurs et une temp%u00e9rature de stockage plus %u00e9lev%u00e9e dans les premi%u00e8res heures apr%u00e8s la fabrication. Cette valeur est fix%u00e9e par d%u00e9faut comme r%u00e9sistance au d%u00e9collement lors de la fabrication des cuvelages, de sorte qu'il est possible, avec de telles compositions de m%u00e9lange, de r%u00e9duire consid%u00e9rablement les %u00e9missions de CO2 des compositions de m%u00e9lange tout en conservant des performances techniques comparables. nReferences[1] Stindt, J.; Forman, P.; Mark, P. Influence of Rapid Heat Treatment on the Shrinkage and Strength of High-Performance Concrete. Materials 14 2021. 4102.[2] Adu-Amankwah, S.; Bernal, S. A.; Black, L.: Influence of component fineness on hydration and strength development in ternary slag-limestone cements. RILEM Technical Letter 4 2019. pp. 81-88.[3] Berodier, E.; Scrivener, K.: Understanding the Filler Effect on the Nucleation and Growth of C-S-H. Journal of American Society 97 2014. pp. 3764-3773.[4] Birki, Y.; Zajac, M.; Mohsen, B. H.; Scrivener, K.: Impact of limestone fineness on cement hydration at early age. Cement and Concrete Research 147 2021. 106515.[5] John, E.; Matschei, T.; Stephan, D.: Nucleation seeding with calcium silicate hydrate %u2013 A review. Cement and Concrete Research 113 2018. pp. 74-85.[6] Hallet, V.; De Belie, N.: Pontikes. Y.: The impact of slag fineness on the reactivity of blended cements with high-volume nonferrous metallurgy slag. Construction and Building Materials 257 2020. 119400.[7] Zhou, Y.; Zhang, Z.: Effect of fineness on the pozzolanic reaction kinetics of slag in composite binders: experiment and modelling. Construction and Building Materials 273 2020. 121695.[8] Lothenbach, B.; Le Saout, G.; Gallucci, E.; Scrivener, K. Influence of limestone on the hydration of Portland cements. Cement and Concrete Research 38 2008. pp. 848-860.[9] Zajac, M.; Rossberg, A.; Le Saout, G.; Lothenbach, B. Influence of limestone and anhydrite on the hydration of Portland cements. Cement and Concrete Composites 46 2014. pp. 99.108.[10] Schack, T.; Haist, M.: Performance assessment of eco-efficient concrete with ternary blended cementitious materials considering the effect of binder component fineness. Case Studies in Construction Materials 20 2024. e03154.[11] European Cement Research Academy: TR-ECRA-106/2009 ECRA CCS Project - Report about Phase II 2009.[12] Br%u00e4u, M.; Ma-Hock, L.; Hesse, C.; Nicoleau, L.; Strauss, V.; Treumann, S.; Wiench, K.; Landsiedel, R.; Wohlleben, W.: Nanostructured calcium silicate hydrate seeds accelerate concrete hardening: a combined assessment of benefits and risks, Archives of 599 Toxicology 86 2012. pp. 1077-1087.[13] Pedrosa, H.C.; Reales, O.M.; Reis, V.D.; Paiva, M.D.D.; Fairbairn, E.M.R.: Hydration of Portland cement accelerated by C-S-H seeds at different temperatures, Cement and Concrete Research 129 2020. 105978.[14] Li, X.; Bizzozero, J.; Hesse, C.; Impact of C-S-H seeding on the hydration of slag blended cement. Cement and Concrete Research 161 2022. 106935.[15] https://www.dyckerhoff.com/de/next-base (Letzter Zugriff: 27.04.2025)[16] Schack, T.; Strybny, B.; Haist, M. (2024) Improving the Early Age Strength of Eco-Efficient Mortar with Low Clinker Content Considering Binder Granulometry and Chemical Additives. Materials 17(18). 4509.[17] DIN EN 197-1:2011-11: Cement - Part 1: Composition, specifications and conformity criteria for common cements. Beuth, Berlin, 2011.[18] Dyckerhoff GmbH [ed.] Dyckerhoff Mikrodur%u00ae %u2026 vom Feinsten. Dyckerhoff GmbH, Product marketingFig. 4 : r%u00e9sistance %u00e0 la compression apr%u00e8s 8 heures en fonction de la proportion de clinker et de la temp%u00e9rature de stockage (20 %u00b0C %u00e0 60 %u00b0C) R%u00e9sistance %u00e0 la compression 8h [MPa]Teneur en clinker [% mass.]www.cpi-worldwide.comCONCRETE TECHNOLOGY CONCRETE TECHNOLOGY96 CPI %u2013 Concrete Plant International %u2013 2 | 2025 www.cpi-worldwide.com www.cpi-worldwide.com CPI %u2013 Concrete Plant International %u2013 2 | 2025 97Kraft Curing Systems is proud to be a technology leader in concrete curing. As a team dedicated to innovation, they are excited to share their latest advancements, including the Match-Cure System with Predictive Maturity, the E-Cure System, and the CO2 TestCube. Additionally, as Kraft Curing Systems prepares for bauma 2025, they look forward to showcasing their cutting-edge solutions, alongside the expansion of their operations with the new Logistics and Competence Center at the headquarters in Lindern, Ger- many, set to break ground in summer 2025.Expanding for the Future Beyond product innovations, Kraft Curing Systems is making a significant investment in their future with the construction of a new Logistics and Competence Center, set to start in summer 2025. This facility will serve as a central hub for logistics, production, and technical innovation, allowing for expanded capabilities and the development of curing solutions such as the patented and one-of-a-kind Kraft%u00ae Racks. The new Competence Center will also provide hands-on technical training and workshops, reinforcing the dedication to knowledge-sharing and industry education. This expansion will enable Kraft Curing Systems to not only increase their production capacity but also strengthen their ability to sup- port customers worldwide with advanced solutions and ex- pert guidance.Concrete Curing Innovations One of the most exciting recent breakthroughs is the Match- Cure System with Predictive Maturity Control, designed to provide real-time data on concrete strength development. This system allows manufacturers to optimize their production processes, reduce curing times, and improve overall efficiency by predicting the maturity and performance of concrete with unparalleled accuracy. Predictive maturity control enables users to set necessary strength and allotted time, automatically allowing the system to determine the best curing process.Match-Cure with Predictive Maturity Control provides real-time curing monitoring, allowing users to track concrete strength gain as it occurs. It enhances precise production planning by forecasting the exact time for detensioning or demolding, eliminating guesswork, and reducing errors. The system automatically adjusts the curing profile based on the required maturity and strength, ensuring consistent results. By implementing Predictive Maturity, manufacturers can benefit from quick reaction alerts if curing is delayed, allowing them to make immediate adjustments. This system also helps save time and personnel costs by enabling production teams to plan more efficiently, ensuring workers are availa- ble precisely when needed. Additionally, energy savings are Pioneering Innovation in Concrete Curing Kraft Curing Systems GmbH, 49699 Lindern, Germanyachieved by avoiding unnecessary heating and curing durations, significantly lowering operational expenses.Another significant advancement is the E-Cure System. This electric-powered curing system provides consistent and controlled heating, accelerating the curing process while reducing energy costs. With radiant heating units placed under- neath molds, beds, or forms, E-Cure ensures uniform curing without the need for fossil fuels, making it both an effective and sustainable solution for concrete production.In line with the commitment to sustainability, Kraft Curing Systems introduced the CO2 TestCube, a test chamber that eval- uates the sequestration potential of CO2 in concrete prod- ucts. The TestCube also enables users to test with heat and humidity, paving the way for a more sustainable future in the industry. This innovative tool allows manufacturers to assess how CO2 can enhance strength and quality, reduce carbon footprints, and contribute to more environmentally friendly building practices.The Pulse of Innovation on Display at bauma 2025 The Kraft team is looking forward to connecting with custom- ers, partners, and industry professionals at bauma, showcasing a range of solutions. One of the key highlights at booth 12.9 will be the aforementioned Match-Cure with Predictive Maturity, an advanced system that takes quality control to the next level by automatically determining the optimal curing process for the earliest possible detensioning and demolding. Visitors will also be able to see the Retractable Enclosures with Vapor Curing, which provide an economical and weath- erproof solution while integrating vapor curing and air circulation systems to ensure optimal curing conditions.Another highlight is the Containerized ThermalCure%u00ae, a pre-plumbed and pre-wired system that accelerates curing through radiant heat emitted from fin-tube pipes For those looking to experience an optimized curing climate firsthand, the operational Kraft%u00ae Racks Curing Chamber will be available at booth b12.2, allowing visitors to step inside and witness the patented curing system in action. Kraft Curing Systems will also showcase real-world applications of their curing technologies through a series of %u201cCuring Systems in Action%u201d videos, illustrating how their solutions fit into differ- ent concrete production processes at booth b2.150 between halls b1 and b2.Beyond these technological advancements, Kraft Curing Systems will highlight their commitment to sustainability with CO2 curing. Additionally, the renewable energy solutions will be on display, featuring high-efficiency stainless steel heat exchangers that recycle warm air, cut heating costs by up to 75%, and provide enhanced humidity control.A Commitment to Excellence %u201cAt Kraft Curing Systems, we are committed to pushing the boundaries of curing technology while supporting our customers with the best solutions available,%u201d said Michael Kraft. %u201cWith our latest innovations and the expansion of our operations, we are excited to shape the future of concrete curing. As Bauma 2025 approaches and the Logistics and Competence Center nears its groundbreaking, we remain at the forefront of the industry, driving progress and setting new standards in concrete curing technology.%u201d nFURTHER INFORMATIONKraft Curing Systems GmbH M%u00fchlenberg 2, 49699 Lindern, Germany T +49 5957 96120 info@kraftcuring.comwww.kraftcuring.comStand B2.150, Stand B12.2, Stand B12.9Site of the future expansion of the Kraft Curing Headquarters.The predictive maturity control option for the Match-Cure Quality Control System allows producers to decide when the product is ready for demoulding or detensioning.A retractable enclosure with integrated vapor curing in action.A look back at booth 12.2 at the 2022 bauma.2 www.cpi-worldwide.com2025Concrete Plant International Worldwide English EditionBAUMA 2025 %u2013 NEWS +++ BAUMA 2025 %u2013 NEWS +++ BAUMA 2025 %u2013 NEWS +++ BAUMA 2025 %u2013 NEWS CONCRETE TECHNOLOGY Wireless embedded sensor for monitoring internal relative humidity in concrete CONCRETE PRODUCTS New control concepts to increase effi ciency in concrete block and paver production PRECAST CONCRETE ELEMENTS Flexible transformer substation moulds in demand in Europe MIXED AND COMPACTED Concrete barrel instead of barrique barrelRATEC MOULDS TURN BETTER IDEAS INTO SERIES PRODUCTIONWhen it comes to smart 3D mould solutions for precast concrete production %u2013 think of us. BETTER IDEAS %u2013 Made in Germany! >> www.ratec.org Visit us at Hall B1, Stand 348 April 7 %u2013 13, 2025 I Munich2502_cpi_U1-4_en.indd 1 28.02.25 12:05SUBSCRIPTION