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This month's Q&A discusses the new compliance requirements for field-cured specimens in ACI CODE-318-25 and other procedures approved by the licensed design professional to evaluate concrete strength.
Available in the following language(s): Spanish
This article highlights a presentation from the 2025 Concrete Innovation Forum, “Using Pozzolanic Reactivity to Optimize Concrete Mixtures for Performance, Cost, and Sustainability,” developed by W. Jason Weiss, FACI, and Burkan Isgor, FACI. Delivered by Weiss, this presentation focused on combining science-based tests with rigorous computational models to help design concrete mixtures for the future.
Available in the following language(s): Spanish
To facilitate the shotcreter’s task, partial or full automation of the placement process is of interest, which is why the Shotcrete Laboratory at the Université Laval, Québec, QC, Canada, acquired a six-axis robotic arm in 2019. The arm can repeat predefined spraying patterns with practically flawless accuracy. This robot, combined with a data acquisition system that measures rebound during a standardized spraying session, is the starting point of a large research project, “SPARO – Shotcrete Placement Automated by Robot."
Available in the following language(s): Spanish
Admixtures are not just additives—they are performance enhancers that can improve workability, accelerate or reduce setting times, prevent cracking, enhance durability, and extend service life. By collaborating with trusted material suppliers and staying informed about developments in admixture technology, project teams can develop mixture designs that are tailored to site conditions.
Available in the following language(s): Spanish
The world’s first recycled concrete building, Recygénie, is a result of a partnership between Holcim and Seqens. Recygénie is soon to be home to residents who will occupy 220 housing units. Developed by the Holcim Innovation Center, a concrete in which all components are made of recycled materials went into the construction of Recygénie. Located in the Paris suburb of Gennevilliers, the affordable housing complex represents a breakthrough in circular construction.
Available in the following language(s): Spanish