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Mechanistic Study Of The Improvement Of Lc3 Rheological Properties By Pce Superplasticizers- A Comparative Study With Opc System, Ran Li, Jinlong Xue, Yanru Wang, Jiuwen Bao, Jie Shi, Tongbo Sui Sep 2025

Mechanistic Study Of The Improvement Of Lc3 Rheological Properties By Pce Superplasticizers- A Comparative Study With Opc System, Ran Li, Jinlong Xue, Yanru Wang, Jiuwen Bao, Jie Shi, Tongbo Sui

C3 Symposium 2025

Recently, LC3 attracts more and more attentions due to low CO2 emission. Understanding the mechanisms of PCEs on LC3 rheology is crucial for advancing its application. This study investigates the rheological properties of LC3 and ordinary Portland cement (OPC) in response to PCE superplasticizers. HPEG PCEs were successfully synthesized via free radical copolymerization with varying acrylic acid (AA) to macromonomer (MM) ratios, and their quality were characterized using Gel Permeation Chromatography (GPC). Fluidity tests and rheology measurements revealed that PCEs enhance fluidity and reduce dynamic yield stress and plastic viscosity in both systems, although LC3 requires a higher PCE dosage …

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Assessment Of Textured Epoxy-Coated Rebars In Concrete For Chloride Induced Corrosion, Kevin Danner, Shayan Ali Khan, John S. Popovics Sep 2025

Assessment Of Textured Epoxy-Coated Rebars In Concrete For Chloride Induced Corrosion, Kevin Danner, Shayan Ali Khan, John S. Popovics

C3 Symposium 2025

Textured-Epoxy coated rebar (TEC) differs from conventional Epoxy coated rebar (ECR) due to its rougher exterior surface – which aims to reduce cracking in concrete and development length. However, no studies have investigated the long-term corrosion response behavior of both TEC and ECR when subjected to service-level bridge deck displacement criteria. This study utilizes Non-Destructive Testing techniques such as Half-Cell Potential (HCP), Ground Penetrating Radar (GPR), Ultrasonic Pulse Velocity (UPV), and Linear Polarization Resistance (LPR) to characterize the corrosion response behavior of service-level stressed TEC and ECR reinforced concrete samples subjected to a realistic chloride environment.

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Comparative Analysis Of The Corrosion Resistance Epoxy-Coated, Textured Epoxy-Coated, And Uncoated Reinforcement Bars, Shayan Ali Khan, Kevin Danner, John S. Popovics Sep 2025

Comparative Analysis Of The Corrosion Resistance Epoxy-Coated, Textured Epoxy-Coated, And Uncoated Reinforcement Bars, Shayan Ali Khan, Kevin Danner, John S. Popovics

C3 Symposium 2025

The corrosion of steel reinforcement inside concrete remains a significant challenge for the construction industry. In the United States alone, an estimated annual cost of $240 billion is incurred from corrosion-related damage, with about 20% attributed to the corrosion of reinforced concrete [1]. Among various corrosion prevention techniques for reinforced concrete, epoxy coating of rebars (EC), has been widely adopted. However, due to the smooth surface of epoxy coating, its bond strength with concrete is reduced significantly, which has become a barrier for its large-scale adoption [2]. To tackle this, Sherwin Williams developed textured epoxy coated rebars (TEC) (figure 1a) …

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Cathodic Protection Of Reinforced Concrete Infrastructure Using Mmo-Coated Titanium Alloy Bars, Naveen Krishnan, Christopher Higgins, O. Burkan Isgor Sep 2025

Cathodic Protection Of Reinforced Concrete Infrastructure Using Mmo-Coated Titanium Alloy Bars, Naveen Krishnan, Christopher Higgins, O. Burkan Isgor

C3 Symposium 2025

ASTM B1009 titanium alloy bars (TiABs), which are chemically and mechanically equivalent to Grade 5 titanium, have recently gained attention as dual-purpose materials for near-surface-mounted retrofit (NSMR) of concrete. These bars offer both structural reinforcement and corrosion protection when used as anodes in impressed current cathodic protection (ICCP) systems. While TiABs without mixed metal oxide (MMO) coating provide inherent corrosion resistance as an ICCP anode, their effectiveness in ICCP applications may be limited. This study evaluates the electrochemical behavior of iridium-based MMO coatings on TiABs that are designed as ICCP anodes. Open circuit potential (OCP) measurements showed that both uncoated …

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Concrete Conductivity/Resistivity With Conductive Aggregate, W. Jason Weiss, O. Burkan Isgor Sep 2025

Concrete Conductivity/Resistivity With Conductive Aggregate, W. Jason Weiss, O. Burkan Isgor

C3 Symposium 2025

The electrical properties of concrete (formation factor) are often used as a surrogate test method to assess fluid transport in concrete primarily because resistivity (or conductivity) can be measured rapidly and economically. While electrical properties have been measured for nearly a century, the recent rise in handheld, battery-operated testing tools coupled with the desire to quantify the transport performance of concrete has caused a sudden spike in interest in electrical property measurements as a quality control or quality acceptance tool. Standards have been developed (AASHTO T 358, AASHTO T 402, ASTM C1876) with an emphasis on the role of sample …

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Recycling Waste Glass Powder In Lightweight Aggregate Concrete: Towards Lightweight, Sustainable And Durable Marine Engineering Structures, Bin Jia, Yuxi Zhao Sep 2025

Recycling Waste Glass Powder In Lightweight Aggregate Concrete: Towards Lightweight, Sustainable And Durable Marine Engineering Structures, Bin Jia, Yuxi Zhao

C3 Symposium 2025

This study investigates the feasibility of incorporating waste glass powder (GP) as a sustainable supplementary cementitious material in structural lightweight aggregate concrete (SLAC) for marine applications. The effects of GP replacement (0–40%) on the fresh, mechanical, and durability properties were evaluated. Results showed that while GP reduces early-age strength, long-term mechanical stability is maintained, with GP20 achieving the highest elastic modulus. GP incorporation significantly improves durability, including reduced chloride migration, lower water absorption, and higher electrical resistivity. Corrosion resistance of steel bars under chloride exposure was enhanced, as indicated by higher open-circuit potential values (OCP). Microstructural analysis revealed that GP …

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Durability Of Reinforced Concrete Exposed To Stray Currents From Dc-Driven Track Systems Under Constant And Varying Voltages, Lapiro Igor, Eid Rami, Konstantin Kovler Sep 2025

Durability Of Reinforced Concrete Exposed To Stray Currents From Dc-Driven Track Systems Under Constant And Varying Voltages, Lapiro Igor, Eid Rami, Konstantin Kovler

C3 Symposium 2025

Real-world conditions near a light rail system were simulated to examine the effect of stray electric currents on the corrosion of reinforced concrete and the service life of these elements. Field measurements were conducted near the track to estimate typical stray electric voltages. These voltages were then applied to concrete specimens in a controlled laboratory environment under two different conditions: variable voltage, as measured in the field, and with a constant voltage of 9 V. Two types of concrete were tested: normal-strength concrete (approximately 30 MPa) and medium-strength concrete (approximately 60 MPa). Crack times were recorded for both to assess …

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Development Of Ternary Blended Cement Incorporating Limestone And Natural Pozzolan For Enhanced Durability And Sustainability, Azadeh Hosseinpanahi, Luis Baquerizo Ibarra, Hamed Maraghechi Sep 2025

Development Of Ternary Blended Cement Incorporating Limestone And Natural Pozzolan For Enhanced Durability And Sustainability, Azadeh Hosseinpanahi, Luis Baquerizo Ibarra, Hamed Maraghechi

C3 Symposium 2025

This study evaluates the commercial development of ternary blended cement with integration of a zeolite based natural pozzolan as a supplementary cementitious material (SCM). The experimental program involved a systematic characterization of the natural pozzolan, as well as assessment of fresh, mechanical and durability properties of the ternary blended cement to ascertain short-term and long-term performances.

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A Thermodynamic Perspective On Reinforcement Corrosion In Concretes Produced With Low-Clinker Blended Binders, O. Burkan Isgor, W. Jason Weiss Sep 2025

A Thermodynamic Perspective On Reinforcement Corrosion In Concretes Produced With Low-Clinker Blended Binders, O. Burkan Isgor, W. Jason Weiss

C3 Symposium 2025

Concrete produced with blended binders with low clinker content, while having a reduced carbon footprint, pose additional challenges with respect to reinforcement corrosion. As the portland limestone cement is replacing ordinary portland cement, the utilization of conventional supplementary cementitious materials (SCM) has become the norm, and various types of alternative SCM are emerging, the focus has shifted toward the performance of concretes produced with low-clinker blended binders. While the synergetic reactions among clinker, limestone and SCM could provide significant benefits to concrete by reducing porosity, pore connectivity and transport coefficients, hence improving various mechanical and durability properties, they can also …

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Predicting The Chloride Penetration Of Sustainable Marine Concrete Using Data-Driven And Multiphysics Frameworks, Joya Rani Das, Taihao Han, Jie Huang, Kamal H. Khayat, Aditya Kumar Sep 2025

Predicting The Chloride Penetration Of Sustainable Marine Concrete Using Data-Driven And Multiphysics Frameworks, Joya Rani Das, Taihao Han, Jie Huang, Kamal H. Khayat, Aditya Kumar

C3 Symposium 2025

Chloride penetration in sustainable reinforced concrete (RC) is a critical parameter for predicting and preventing infrastructure failure, particularly for marine applications. However, replicating natural environments and testing in actual infrastructure is challenging, making it difficult to accurately measure chloride concentration in RC. Additionally, the complexity of concrete mixture designs and environmental parameters hinders the development of a universal model to predict chloride concentration at various concrete depths. This study develops a data-driven approach to predict chloride concentrations at different depths and chloride diffusion coefficients in marine RC made with common supplementary cementitious materials (e.g. fly ash, slag, etc.) under varied …

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The Role Of Graphene-Based Nanomaterials In Enhancing Resiliency And Ductility In Engineered Concrete, Michail Margas, Panagiotis Danoglidis, Maria Konsta-Gdoutos Sep 2025

The Role Of Graphene-Based Nanomaterials In Enhancing Resiliency And Ductility In Engineered Concrete, Michail Margas, Panagiotis Danoglidis, Maria Konsta-Gdoutos

C3 Symposium 2025

Graphene-based nanomaterials have gained significant attention for enhancing cement matrices due to their exceptional surface area and remarkable mechanical, physical, and chemical properties. These characteristics make them ideal candidates for improving the overall performance of engineered cementitious materials. This study focuses on accelerating the carbonation kinetics within nanostructured interfaces of cement systems by incorporating 2D graphene-based nanomaterials. Exfoliated graphene nanoplatelets (GNPs), with a surface area 3-5 times greater than that of cement grains, were used. Experimental results revealed that concrete reinforced with exfoliated, few-layer GNPs demonstrated 1.5 times higher carbonation uptake and mineralization capacity. Additionally, quantitative nanomechanical property mapping highlighted …

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Optimizing Thermoelectric Efficiency In Cementitious Nanocomposites Via Hybrid Swcnt/Ncf Reinforcement, Myrsini E. Maglogianni, Panagiotis A. Danoglidis, Maria S. Konsta-Gdoutos Sep 2025

Optimizing Thermoelectric Efficiency In Cementitious Nanocomposites Via Hybrid Swcnt/Ncf Reinforcement, Myrsini E. Maglogianni, Panagiotis A. Danoglidis, Maria S. Konsta-Gdoutos

C3 Symposium 2025

Cement-based materials with thermoelectric functionalities offer new opportunities for harvesting waste heat from civil infrastructure. While carbon nanomaterials have been shown to enhance the electrical conductivity of cementitious composites, achieving efficient thermoelectric energy conversion requires simultaneously controlling the thermal properties while preserving the electrical properties. In this study, insulating cellulose nanofibrils (NCFs) are combined with superconducting single-walled carbon nanotubes (SWCNTs) to develop nano-engineered cementitious materials capable of converting thermal gradients into electrical energy. Results show that the hybrid SWCNT/NCF mortars exhibited a Seebeck coefficient up to 4083.61 μV/K and ZT of 0.46 while maintaining high electrical conductivity of 126.42 S/m …

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Harnessing Waste Cellulose Fibers For Developing Highly Resilient And Durable Cementitious Composites, Mohammad Jaberizadeh, Panagiotis Danoglidis, Surendra P. Shah, Maria Konsta-Gdoutos Sep 2025

Harnessing Waste Cellulose Fibers For Developing Highly Resilient And Durable Cementitious Composites, Mohammad Jaberizadeh, Panagiotis Danoglidis, Surendra P. Shah, Maria Konsta-Gdoutos

C3 Symposium 2025

The construction industry continually seeks innovative materials to improve the performance and durability of cementitious composites. Waste cellulose fibers (WCF) derived from agricultural residues present an advanced underutilized source for reinforcing cementitious materials. These fibers exhibit exceptional properties, including high tensile strength and a remarkable water retention capacity (~10x their weight). Our research on WCF derived from wheat straw demonstrates their ability to mitigate autogenous shrinkage by up to 75% during early hydration and significantly improve mechanical properties at early ages. However, the long-term performance of WCF in cementitious matrices is affected by the harsh alkaline environment, which can cause …

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Enhancing The Post-Crack Tensile Strain Capacity Of Metakaolin- Portland Limestone Cement Blend By Using Carbon Nanotubes, Rohitashva K. Singh, Panagiotis A. Danoglidis, Maria S. Konsta-Gdoutos Sep 2025

Enhancing The Post-Crack Tensile Strain Capacity Of Metakaolin- Portland Limestone Cement Blend By Using Carbon Nanotubes, Rohitashva K. Singh, Panagiotis A. Danoglidis, Maria S. Konsta-Gdoutos

C3 Symposium 2025

Incorporating metakaolin (MK) into cementitious materials is known to enhance strength and stiffness, however, this yields a relatively brittle material with a significant loss of the ultimate strain capacity. To compensate for the loss in ductility, well-dispersed carbon nanotubes (CNTs) are incorporated in MK-Portland Limestone Cement (PLC) mortar to reinforce the Interfacial Transition Zone (ITZ) which is crucial for controlling the crack formation and propagation. Nanoscale imaging and mechanical property mapping at the ITZ between the nanomodified MK-PLC matrix and aggregates revealed that the local nanostructure and morphology of the ITZ were modified, resulting in an increase in the modulus …

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Biochar-Amended Engineered Cementitious Composites, Amir Ali Shahmansouri, Zhigang Zhang, Xianming Shi Sep 2025

Biochar-Amended Engineered Cementitious Composites, Amir Ali Shahmansouri, Zhigang Zhang, Xianming Shi

C3 Symposium 2025

This study investigates the incorporation of biochar as a sustainable cement replacement in high-strength ECC, focusing on mechanical properties, durability, microstructural characteristics, and environmental impacts. Biochar was added at 5%, 10%, 20%, and 30% replacement levels by cement weight, and its effects were assessed through compressive and tensile strength tests, TGA, SEM, and LCA. Results showed that biochar-enhanced ECC achieved 28-day compressive strengths of 95.4–99.6 MPa, with a peak tensile strength of 8.58 MPa at 20% biochar content, though higher dosages reduced strain capacity. TGA confirmed increased pozzolanic activity with reduced portlandite content, while SEM images revealed a denser ITZ …

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Towards Carbon-Neutrality In Concrete: The Role Of Biochar In Air-Entrained And Non-Air-Entrained Systems As Sand Replacement, Mahdi Mirabrishami, Farshad Rajabipour Sep 2025

Towards Carbon-Neutrality In Concrete: The Role Of Biochar In Air-Entrained And Non-Air-Entrained Systems As Sand Replacement, Mahdi Mirabrishami, Farshad Rajabipour

C3 Symposium 2025

Biochar is a carbon-rich solid residue resulting from the pyrolysis or devolatilization of waste biomass (e.g., wood chips, sawdust, grass) at elevated temperatures in an oxygen-limited furnace. Biochar provides an effective pathway for atmospheric CO2 removal via photosynthesis in biomass, which is subsequently converted to biochar while also producing energy. Due to its carbon-negative footprint (-2.4 to -2.9 kg CO2eq/ kg biochar), biochar could be used to reduce or eliminate the net CO2 emission of concrete. This study aims to produce low-carbon to carbon-negative concrete mixtures by utilizing biochar as a partial to total replacement of natural sand while leveraging …

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Carbon-Negative Concrete By Using Biochar, Matteo Pavese, Luca Lavagna, Carlo Amata, Jean Marc Tulliani, Mattia Bartoli, Mauro Giorcelli, Claudia Guzzoni Iudice, Alessio Mondello, Matthew Mallory, Chris Carstens, Douglas Dufaux Sep 2025

Carbon-Negative Concrete By Using Biochar, Matteo Pavese, Luca Lavagna, Carlo Amata, Jean Marc Tulliani, Mattia Bartoli, Mauro Giorcelli, Claudia Guzzoni Iudice, Alessio Mondello, Matthew Mallory, Chris Carstens, Douglas Dufaux

C3 Symposium 2025

In this paper we present the realization of carbon negative concrete by substituting cement and aggregate with biochar. By conveniently choosing feedstock and properties of biochar, it is possible to maintain the same compression strength of standard concrete. Several biochar types derived from different vegetal feedstocks were used, that were characterized for their composition and physical properties. The effect of biochar type and grain size distribution was studied, demonstrating the possibility of maintaining or even slightly improving the mechanical properties of mortar and concrete, depending on the biochar content. The physical properties and pore distribution of mortar containing biochar was …

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An Interpretable Machine Learning Technique To Predict Size Effect And Fracture Behavior Of Concrete, Md Nasir Uddin, Md Khaliqul Bari, Amlan Majumder, Picasso Kumar Debnath, Xijun Shi Sep 2025

An Interpretable Machine Learning Technique To Predict Size Effect And Fracture Behavior Of Concrete, Md Nasir Uddin, Md Khaliqul Bari, Amlan Majumder, Picasso Kumar Debnath, Xijun Shi

C3 Symposium 2025

The size effect phenomenon, stemming from the inherent fracture characteristics of materials, is notably widespread in concrete. Traditional approaches to investigate this effect and concrete fracture behaviors are typically laborious. To address these issues, this study employs a machine learning (ML) methodology (e.g., light gradient boosting machine (LGBoost) and categorical boosting (CatBoost)). The findings indicate that these models deliver high accuracy in predicting the nominal flexural strength of concrete, reaching R² values of 0.933 and 0.929, respectively, for testing the models. Additionally, SHapley additive exPlanations (SHAP) analysis was used to differentiate the influence of material and geometric parameters on the …

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Effects Of Colloidal Nano-Silica Incorporation On The Durability And Mechanical Properties Of Portland Limestone Cement (Plc) Concrete, Jookyeung Sung, Mehrdad Razmara, Rui He, Na (Luna) Lu, Yining Feng Sep 2025

Effects Of Colloidal Nano-Silica Incorporation On The Durability And Mechanical Properties Of Portland Limestone Cement (Plc) Concrete, Jookyeung Sung, Mehrdad Razmara, Rui He, Na (Luna) Lu, Yining Feng

C3 Symposium 2025

Portland limestone cement (PLC) concrete is considered more environmentally friendly than ordinary Portland cement (OPC) because it contains less clicker content; however, in many cases PLC cement compromises the durability and mechanical properties of concrete. In this study, colloidal nano-silica (CNS) was used to improve the durability and mechanical properties of PLC concrete. The effects of two types of water reducers (lignin and polycarboxylate) on PLC samples were also studied. The results indicate that CNS incorporation improved the durability and mechanical properties of PLC concrete. The compressive strength of CNS samples improved by nearly 15%, the flexural strength increased by …

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Real-Time Concrete Strength Estimation Using Electro-Mechanical Impedance And 1d Cnn, Rui He, Guangshuai Han, Na (Luna) Lu, Yining Feng Sep 2025

Real-Time Concrete Strength Estimation Using Electro-Mechanical Impedance And 1d Cnn, Rui He, Guangshuai Han, Na (Luna) Lu, Yining Feng

C3 Symposium 2025

This study presents a field-validated deep learning model for real-time, in-situ concrete strength estimation using piezoelectric sensors and electro-mechanical impedance (EMI) signal processing. Addressing the limitations of prior research—namely, narrow datasets and poor field applicability—we constructed a diverse database comprising over 775 data points across 28 mix designs and 107 sensor deployments. A novel 1D Convolutional Neural Network (1DCNN) with a baseline correction mechanism was developed to analyze time-series EMI signals. Our model achieved a mean absolute error of 2.68 MPa and an R² of 0.96 in testing, outperforming conventional methods. Transfer learning techniques further enhanced adaptability to new mix …

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Rebel Sensor For Real-Time Concrete Strength: Eliminating Calibration And Reducing Carbon Footprint, Rui He, Zhihao Kong, Joe Turek, Na (Luna) Lu Sep 2025

Rebel Sensor For Real-Time Concrete Strength: Eliminating Calibration And Reducing Carbon Footprint, Rui He, Zhihao Kong, Joe Turek, Na (Luna) Lu

C3 Symposium 2025

Concrete strength is a key factor influencing construction quality, cost, schedule, and durability. However, current testing methods—such as cylinder and beam breaks—are time-consuming, costly, and carbon-intensive, often delaying construction and generating unnecessary waste. Existing maturity methods (e.g., ASTM C1074) also require pre-established, mix-specific curves that take weeks and thousands of dollars to develop.To address these challenges, we developed the REBEL Sensor—an IoT-enabled technology that enables direct, real-time, and wireless monitoring of in-place concrete strength without the need for pre-determined calibration curves. By accurately predicting final strength at 28 or 56 days from the initial mix, our sensor empowers engineers to …

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Calcium Sulfoaluminate-Belite Cement Production Using Industrial Wastes, Bipina Thaivalappil, Piyush Chaunsali Sep 2025

Calcium Sulfoaluminate-Belite Cement Production Using Industrial Wastes, Bipina Thaivalappil, Piyush Chaunsali

C3 Symposium 2025

This study explores the development of calcium sulfoaluminate-belite (CSAB) cement using alternative raw materials such as low-CaO limestone and red mud, aiming to reduce cost and environmental impact. CSAB clinkers were synthesized, and the mineralogy and mechanical performance were assessed. The findings demonstrate that CSAB cement with comparable phase composition and mechanical performance to commercial variants can be achieved, supporting the feasibility of sustainable raw material utilization.

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Mix Designs Of Low Modulus Of Elasticity Of Mass Concrete And Cushion Concrete Used In Yusufeli Dam Body, Aydın Saglik Sep 2025

Mix Designs Of Low Modulus Of Elasticity Of Mass Concrete And Cushion Concrete Used In Yusufeli Dam Body, Aydın Saglik

C3 Symposium 2025

The construction of the Yusufeli Dam and Hydroelectric Power Plant on the Coruh River has been completed and the dam, which has a total water storage volume of approximately 2,2 billion cubic meters, has become the highest dam in Turkey and the fifth highest dam in the world with a height of 275 meters in the double-curvature concrete arch dam type. During the design process of the mass concrete body of the Yusufeli Dam, relatively low deformation modulus zones were encountered in some slope rock soils where the thin arch structure would create pressure. It was taken into consideration that …

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An Experimental Study On Evaluation Of Creep And Shrinkage For Blast Furnace Slag-Cementless Concrete With Compressive Strength Of 80 Mpa, Jung-Soo Lee, Chan-Kyu Park, San-Ha Park, Seung-Hee Kwon Sep 2025

An Experimental Study On Evaluation Of Creep And Shrinkage For Blast Furnace Slag-Cementless Concrete With Compressive Strength Of 80 Mpa, Jung-Soo Lee, Chan-Kyu Park, San-Ha Park, Seung-Hee Kwon

C3 Symposium 2025

In this study, the long-term behavior of 80 MPa cementless concrete incorporating blast furnace slag and that of ordinary concrete with the same compressive strength were evaluated. The modulus of elasticity, autogenous shrinkage, and basic creep coefficient of the cementless concrete were found to be comparable to those of ordinary concrete. In contrast, the drying creep and drying shrinkage of the cementless concrete were observed to be lower than those of ordinary concrete.

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Co₂ Seeding Admixtures For Enhanced Concrete Activation, Shipeng Zhang, Guangqi Xiong, Shuangshuang Liu Sep 2025

Co₂ Seeding Admixtures For Enhanced Concrete Activation, Shipeng Zhang, Guangqi Xiong, Shuangshuang Liu

C3 Symposium 2025

In this study, on-site CO2 seeding admixtures were prepared using power ultrasound-assisted pre-carbonation and chelator-assisted pre-carbonation (GLTA, EDTA) to enhance the carbonation efficiency and mechanical properties. Studies have shown that the application of power ultrasound can achieve a maximum CO2 uptake of 9.0% of the binder during the preacarbontion process. Compared with those of the traditional mixing batch and ordinary carbonation seeding activated batch, the strength of the power ultrasound seeding activated batch increased by 27.2 % and 21.4 %, respectively, after 1 day. Additionally, the EDTA-assisted pre-carbonation can achieve a maximum CO2 uptake of 9.6% of the binder during …

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Cold-Compacted Concrete Waste Composites – Sustainable Low-Carbon Materials: Effect Of Original Concrete Quality, Ngoc Kien Bui, Takafumi Noguchi, Ippei Maruyama Sep 2025

Cold-Compacted Concrete Waste Composites – Sustainable Low-Carbon Materials: Effect Of Original Concrete Quality, Ngoc Kien Bui, Takafumi Noguchi, Ippei Maruyama

C3 Symposium 2025

A compacted concrete waste composite material (CWC) is developed using a cold compaction approach with recycled concrete waste particles, without the use of cement. This study aims to investigate the effects of carbonation and the original quality of the concrete waste (CW) particles on the properties of composite material, with the goal of proposing a pretreatment of concrete waste particles which proposed for CO2 sequestered for producing CWC with attained strength. This study found that the original quality of the CW strongly affects the properties of the CWC.

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Using Fluid Absorption Modeling To Determine The Intrinsic Permeability Of Cement-Based Materials, Luiz Antonio De Siqueira Neto, O. Burkan Isgor, W. Jason Weiss Sep 2025

Using Fluid Absorption Modeling To Determine The Intrinsic Permeability Of Cement-Based Materials, Luiz Antonio De Siqueira Neto, O. Burkan Isgor, W. Jason Weiss

C3 Symposium 2025

Neutron radiography (NR) is used during unidirectional fluid absorption experiments to obtain moisture profiles through the height of mortar specimens. The moisture profiles are compared to the results of an established fluid absorption modeling technique, and linear interpolation is used to accurately determine the intrinsic permeability (Kl) of all samples.

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Practical Implementation Of Internally Cured Concrete Using Superabsorbent Polymers, Chibueze Ajuonuma, Raikhan Tokpatayeva, Jan Olek, Kendra A. Erk Sep 2025

Practical Implementation Of Internally Cured Concrete Using Superabsorbent Polymers, Chibueze Ajuonuma, Raikhan Tokpatayeva, Jan Olek, Kendra A. Erk

C3 Symposium 2025

This study investigates the practical implementation of internally cured plain and slag cement concrete using superabsorbent polymers (SAPs) through a comprehensive field trial. The objective was to develop strategies to successfully deliver and disperse SAP in concrete, evaluate the internal curing performance of SAP in concrete mixtures containing Type IL cement, slag-cement and colloidal nanosilica and evaluate fresh properties, strength development and durability performance of SAP-modified concrete mixes in real-world applications. The incorporation of SAPs aims to enhance internal curing, reduce shrinkage, and improve the long-term performance of concrete structures. Six concrete mixtures were evaluated with Type IL cement, 30% …

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Characterization Of Local 2:1 Clays For Utilization In Limestone Calcined Clay Cements, Aiswaria G R, Athira Gopinath Sep 2025

Characterization Of Local 2:1 Clays For Utilization In Limestone Calcined Clay Cements, Aiswaria G R, Athira Gopinath

C3 Symposium 2025

As calcined clays are gaining prominence as supplementary cementitious materials (SCM), demand for kaolinite-based 1:1 clay has surged, especially for Limestone Calcined Clay Cements (LC3). However, the potential of readily available 2:1 clay remains underexplored. Clays vary in composition, microstructure, and reactivity, with most becoming viable SCMs when activated. This study characterizes three local 2:1 clays in India against pure kaolinite to assess their suitability for LC3. Clays were characterized based on geotechnical properties, XRD and thermogravimetric analysis. Based on the TGA analysis, the dehydroxylation temperature for each clay was ascertained and calcined accordingly. The reactivity of the calcined clays …

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Leveraging The Use Of Carbonated Water For Sustainable Low-Carbon Cements, Aswathy Rajendran, Sripriya Rengaraju, Abir Al-Tabbaa Sep 2025

Leveraging The Use Of Carbonated Water For Sustainable Low-Carbon Cements, Aswathy Rajendran, Sripriya Rengaraju, Abir Al-Tabbaa

C3 Symposium 2025

The sustainability of the construction industry has been significantly enhanced by the development and use of low-carbon cements. However, achieving net-zero emissions requires more than just reducing embodied carbon of cements; it necessitates the adoption of effective carbon sequestration methods. Although various strategies for incorporating carbon sequestration into construction materials have been explored, the use of carbonated water in low-carbon cement systems remains less-researched. This study investigates the impact of adding carbonated water to two key low-carbon cement types: Slag-based cement (80% cement replacement) and Limestone Calcined Clay Cement (LC3, 50% cement replacement). The findings show that carbonated water improves …

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