Using the Particle Model to predict electrical resistivity performance of fly ash in concrete

Kang, Shinhyu; Ley, M. Tyler; Lloyd, Zane; Kim, Tae‐Hwan

doi:10.1016/j.conbuildmat.2020.119975

Cited by 23 publications

(6 citation statements)

References 35 publications

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“…This can probably be ascribed to interaction between the organic-inorganic additive and the developing microstructure of BCSA. It is speculated that the polymer reduces pore connectivity and lowers the permeability [20]. The report also examines other durability aspects of alternative cement systems such as alkali-silica reactivity, sulfate attack, freeze-thaw resistance, etc.…”

Section: Fast-setting Low-permeability Concrete Repair (Bridge Decks)mentioning

confidence: 99%

Fast Setting, Low Carbon Infrastructure Rehabilitation Using Belitic Calcium Sulfoaluminate (BCSA) Concrete

Deo¹,

Win²,

Bhuskute³

et al. 2022

MATEC Web Conf.

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Rapid-setting binders such as Belitic Calcium Sulfoaluminate (BCSA) are increasingly important as the demand for rehabilitation and fast return to service of roads and bridges grows. Speed of construction, low shrinkage, and low carbon footprint are the key features of BCSA concrete. The binder was first developed in the United States in the mid-seventies. It allows pavement, bridge decks or other concrete infrastructure to be replaced and returned to service in a matter of hours. BCSA concrete slabs placed at the Seattle International Airport (SEA) in the 1990s are still in service 20 years later. The binder also allows innovation in pavement design. Taking advantage of the low shrinkage of BCSA concrete, a single 40 ft x 40 ft airport slab without joints was placed at this airport, as an alternative to the placement of four contiguous conventional-size portland slabs. BCSA was also to be the basis for the design of various rapid-setting performance-engineered concretes, such as low-permeability or UHPC concrete. This paper will review recent concrete applications based on BCSA cement, and the opportunities they offer in building a more resilient, lower carbon concrete infrastructure.

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Section: Fast-setting Low-permeability Concrete Repair (Bridge Decks)mentioning

confidence: 99%

Fast Setting, Low Carbon Infrastructure Rehabilitation Using Belitic Calcium Sulfoaluminate (BCSA) Concrete

Deo¹,

Win²,

Bhuskute³

et al. 2022

MATEC Web Conf.

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“…Kang et al [8] developed a new predictive model named particle model to analyze the electrical resistivity of FAC. In the particle model, the R 2 value showed better improvement compared to other classification models that were used for investigating the fly ash replacement.…”

Section: Literature Reviewmentioning

confidence: 99%

“…By utilizing fly ash, the existing studies [7][8] reported that hydration, pore structure, strength, mineralogy and mechanical properties of the concrete had improved. Majorly, the performance of the fly ash concrete (FAC) depends on its reactivity, fineness and carbon content.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Strength Properties of the Concrete Prepared from Class F Fly Ash

Rao

Kumar²

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Cement is a hazardous and expensive material that is used in the production of concrete, where the cost of the concrete is minimized by replacing the cement with similar cementitious materials. According to the report of the national thermal power corporation, the production of fly ash is rising each year as a result of increasing demand for electricity. In this research paper, an attempt has been done by replacing cement with fly ash as an alternative material. The concrete samples are prepared with different compositions by using different percentages (0%, 10%, 20%, 30%, 40%, 50%, and 60%) of fly ash. In this research, the behaviour of the fly ash concrete is investigated by different strength-related properties; compressive strength, splitting tensile strength, and flexural strength at various curing time periods of 7, 28, 56, 90, and 180 days. In the experimental section, the developed fly ash concrete obtained maximum compressive strength of 83.50N / mm 2, a flexural strength of 6.60N / mm 2 and a splitting tensile strength of 4.90N / mm 2 on the 180th day in the composition of 450kg/m 3 and 0.4W/B ratio. Percentage gain of compressive, split tensile and flexural tests for 450 kg/m3 at 0.4 W/B ratio at 180 days curing is 13%, 9% and 13% with 30% fly ash replacement when compared to 350 kg/m3 binder content. Proportional increase of cement content also leads to increase fly ash content in concrete. Fly ash has potential of filling pores because of having finer particles and performs pozzolanic action which resulted in attaining high strength even after optimum replacement when compared to conventional concrete.

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“…Apart from predicting compressive strength on Portland cement mix designs, others have modeled the effect that SCMs, particularly fly ash, have on hardened cementitious properties, such as electrical resistivity, compressive strength, chloride resistance, expansion caused by alkali-silica reaction (ASR), and ion diffusivity [8][9][10][11][12][13][14][15]. ML has also been used to attempt to screen the reactivity of fly ashes based on their network topology [16].…”

Section: Introductionmentioning

confidence: 99%

Advancing cement-based materials design through data science approaches

Rios¹,

Childs²,

Smith³

et al. 2021

RILEM Tech Lett

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The massive scale of concrete construction constrains the raw materials’ feedstocks that can be considered – requiring both universal abundance but also economical and energy-efficient processing. While significant improvements– from more efficient cement and concrete production to increased service life – have been realized over the past decades through traditional research paradigms, non-incremental innovations are necessary now to meet increasingly urgent needs, at a time when innovations in materials create even greater complexity. Data science is revolutionizing the rate of discovery and accelerating the rate of innovation for material systems. This review addresses machine learning and other data analytical techniques which utilize various forms of variable representation for cementitious systems. These techniques include those guided by physicochemical and cheminformatics approaches to chemical admixture design, use of materials informatics to develop process-structure-property linkages for quantifying increased service life, and change-point detection for assessing pozzolanicity in candidate supplementary cementitious materials (SCMs). These latent variables, coupled with approaches to dimensionality reduction driven both algorithmically as well as through domain knowledge, provide robust feature representation for cement-based materials and allow for more accurate models and greater generalization capability, resulting in a powerful design tool for infrastructure materials.

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Using the Particle Model to predict electrical resistivity performance of fly ash in concrete

Cited by 23 publications

References 35 publications

Fast Setting, Low Carbon Infrastructure Rehabilitation Using Belitic Calcium Sulfoaluminate (BCSA) Concrete

Fast Setting, Low Carbon Infrastructure Rehabilitation Using Belitic Calcium Sulfoaluminate (BCSA) Concrete

Evaluation of Strength Properties of the Concrete Prepared from Class F Fly Ash

Advancing cement-based materials design through data science approaches

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