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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-5 of 31958 Abstracts search results
Document:
ACI Spring 2025 Convention
Date:
January 5, 2026
Author(s):
Akbar
Abstract:
Advancements in AI and computational models have significantly enhanced the predictability of concrete performance by leveraging extensive datasets. Recently, machine learning models have been developed to predict concrete’s compressive strength based on its mixture proportions. However, these models treat supplementary cementitious materials (SCMs) as a categorical (as opposed to quantitative) parameter and do not account for the significant impact of the SCM reactivity on concrete’s strength development. In this study, we assembled a dataset of binary (cement-SCM) mixtures, incorporating SCM reactivity measured by the R3 (ASTM C1897) test. Utilizing a random forest machine learning model, we demonstrated that integrating SCM reactivity significantly enhances the model's predictive performance with the fewest input parameters (w/cm, SCM/cm, SCM R3 heat, Agg/cm, cement CaO%). Further, we implemented a multi-objective Bayesian optimization framework to assist in the mixture proportioning of low-carbon low-cost concrete utilizing cement(s) and SCM(s) available to a concrete producer. This framework proposes concrete mix designs to meet a target 28-day compressive strength while minimizing cost and CO2 emissions, by leveraging SCMs with varied reactivity levels. The proposed mix designs were further validated with experiments. The work demonstrates how to avoid model extrapolation and erroneous predictions by utilizing a multi-dimensional convex envelop algorithm. Overall, the outcomes of this work provide a valuable tool for the concrete industry which can be expanded to predict and incorporate other metrics of concrete performance (e.g., workability, durability) and develop optimized mix designs accordingly.
CI4801_Mizer
January 1, 2026
Jennifer Mizer
Publication:
Concrete International
Volume:
48
Issue:
1
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.
DOI:
10.14359/51749388
CI4801_I-Code Update
From October 22-29, 2025, in Cleveland, OH, USA, the International Code Council (ICC) conducted the second Committee Action Hearings (CAH#2) for Group B for the development of the 2027 I-Codes. Four hundred code change proposals receiving one or more comments were addressed at the Group B CAH#2. ACI staff are also working on the development of proposals to modify the 2030 I-Codes.
10.14359/51749386
CI4801Huso-TechSpot
Deborah R. Huso
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.
10.14359/51749387
Vol48No1_full
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