Performance of limestone-calcined clay cement mortar incorporating high volume ferrochrome waste slag aggregate

Shoukry, H.; Perumal, Priyadharshini; Abadel, Aref A.; Alghamdi, Hussam; Alamri, Mohamed S.; Abdel‐Gawwad, Hamdy A.

doi:10.1016/j.conbuildmat.2022.128928

Cited by 22 publications

(5 citation statements)

References 32 publications

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“…A compressive strength database for LC 3 was compiled from the existing literature [11,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45], comprising 430 distinct data records, each with 18 inputs and a single output. Through the random selection of data records, this database is split into two subsets: a training dataset and a testing dataset.…”

Section: Database Collectionmentioning

confidence: 99%

On the Prediction of the Mechanical Properties of Limestone Calcined Clay Cement: A Random Forest Approach Tailored to Cement Chemistry

Han,

Aylas-Paredes,

Huang

et al. 2023

Minerals

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Limestone calcined clay cement (LC3) is a sustainable alternative to ordinary Portland cement, capable of reducing the binder’s carbon footprint by 40% while satisfying all key performance metrics. The inherent compositional heterogeneity in select components of LC3, combined with their convoluted chemical interactions, poses challenges to conventional analytical models when predicting mechanical properties. Although some studies have employed machine learning (ML) to predict the mechanical properties of LC3, many have overlooked the pivotal role of feature selection. Proper feature selection not only refines and simplifies the structure of ML models but also enhances these models’ prediction performance and interpretability. This research harnesses the power of the random forest (RF) model to predict the compressive strength of LC3. Three feature reduction methods—Pearson correlation, SHapley Additive exPlanations, and variable importance—are employed to analyze the influence of LC3 components and mixture design on compressive strength. Practical guidelines for utilizing these methods on cementitious materials are elucidated. Through the rigorous screening of insignificant variables from the database, the RF model conserves computational resources while also producing high-fidelity predictions. Additionally, a feature enhancement method is utilized, consolidating numerous input variables into a singular feature while feeding the RF model with richer information, resulting in a substantial improvement in prediction accuracy. Overall, this study provides a novel pathway to apply ML to LC3, emphasizing the need to tailor ML models to cement chemistry rather than employing them generically.

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Section: Database Collectionmentioning

confidence: 99%

On the Prediction of the Mechanical Properties of Limestone Calcined Clay Cement: A Random Forest Approach Tailored to Cement Chemistry

Han,

Aylas-Paredes,

Huang

et al. 2023

Minerals

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“…Slags, glass, ceramic, incinerated bottom ash, and recycled concrete are some of the proposed waste products to be incorporated as aggregate materials from previous research works. Yet, combining waste aggregate should comply with physical and mechanical criteria, such as shape, density, size, and water absorption [28,53]. Shoukry et al [53] employed Ferrochrome slag (FeCr) as a fine aggregate replacement in LC3 matrix.…”

Section: Combining Recycled Waste Aggregate In Lc3mentioning

confidence: 99%

“…Yet, combining waste aggregate should comply with physical and mechanical criteria, such as shape, density, size, and water absorption [28,53]. Shoukry et al [53] employed Ferrochrome slag (FeCr) as a fine aggregate replacement in LC3 matrix. An intensive investigation has been conducted to get better look into the fresh and hardened characteristics of the LC3 system (with 25 to 100 % FeCr aggregates replacement).…”

Section: Combining Recycled Waste Aggregate In Lc3mentioning

confidence: 99%

Recent Progress in Limestone-Calcined Clay Cement (LC3): A Review

Abdelaziz

Shoukry²,

Selim

et al. 2023

MSF

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Recently, sustainable green binders became mandatory for the construction industry. The process of cement production is responsible for a considerable portion of CO2 causing global warming. Clinker substitution using available by-products is one of the promising strategies to cut down the CO2 emissions of the cement industry. Yet, it is challenging to limit the emission of CO2 without negatively affecting the strength and durability of the proposed concrete. One of the proposed green binders is Limestone-Calcined Clay cement (LC3). The newly developed LC3 binder integrates the advantages of incorporating available cement replacement materials - clay and limestone – and attaining adequate mechanical, physical, and durability performance. In this paper, an intensive review of previous research in LC3-based construction materials including nanomodification, fiber reinforcement, and durability enhancement is presented in details, aiming to highlight the points that lack investigation and the recommended future work.

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“…International data reveals that nearly 0.26 billion metric tons of ordinary Portland cement (OPC) are required yearly for building purposes [ 1 ]. As limestone serves as the primary raw material for the manufacturing of OPC, a critical scarcity of this resource could potentially arise within the next 2 to 4 decades [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

A state-of-the-art review of the physical and durability characteristics and microstructure behavior of ultra-high-performance geopolymer concrete

Hakeem,

Zaid,

Arbili

et al. 2024

Heliyon

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Performance of limestone-calcined clay cement mortar incorporating high volume ferrochrome waste slag aggregate

Cited by 22 publications

References 32 publications

On the Prediction of the Mechanical Properties of Limestone Calcined Clay Cement: A Random Forest Approach Tailored to Cement Chemistry

On the Prediction of the Mechanical Properties of Limestone Calcined Clay Cement: A Random Forest Approach Tailored to Cement Chemistry

Recent Progress in Limestone-Calcined Clay Cement (LC3): A Review

A state-of-the-art review of the physical and durability characteristics and microstructure behavior of ultra-high-performance geopolymer concrete

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