Understanding the role of interfacial transition zone in cement paste and concrete

Kishore, Kamal; Tomar, Radha

doi:10.1016/j.matpr.2022.11.322

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…Beyond the linear elastic limit, the load bearing capacity begins to diminish after the peak load. This phenomenon, which has significant real-world repercussions, is most likely to result from numerous micro-cracking in the ITZ [66].…”

Section: Interfacial Transition Zone Between Mortar and Coral Aggregatementioning

confidence: 99%

Coral Concrete: Overview, Composition and its Behavior in Environment

Kishore

Pandey

Abed³

2023

MSF

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The worldwide interest in coral concrete stems from its use in reef engineering, where it is a composite material made by combining saltwater and coral. This analysis examines the components, mechanical characteristics, and durability of coral concrete. The micro hardness of the interfacial transition zone in coral concrete is significantly greater than that of normal concrete. However, it is found that the coral concrete has less compressive strength than standard concrete hence, the durability of standard concrete is also longer than this concrete. However, the addition of fibres to coral concrete improves the splitting tensile strength and flexural strength significantly. Inadequate cementation of the components hinders the performance of coral concrete because of the porous and brittle nature of coral aggregates. Further investigations can be carried out for underwater engineering applications and sea constructions by selecting appropriate coral aggregate type and developing mix design procedure to produce the high-strength coral concrete.

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Section: Interfacial Transition Zone Between Mortar and Coral Aggregatementioning

confidence: 99%

Coral Concrete: Overview, Composition and its Behavior in Environment

Kishore

Pandey

Abed³

2023

MSF

Self Cite

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Workability and Compressive Strength of Cement Concrete Prepared Using Al2O3 Nanoparticles

Kishore

2023

Smart Innovation, Systems and Technologies

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Continuum percolation of the realistic nonuniform ITZs in 3D polyphase concrete systems involving the aggregate shape and size differentiation

Lin,

Wang,

et al. 2024

Science and Engineering of Composite Materials

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The interfacial transition zone (ITZ) percolation is an effective parameter reflecting the connectivity of ITZs in cementitious materials, and its emergence may accelerate the penetration of inimical ions. In the existing literature on ITZ percolation, aggregates are generally simplified as the identical-shaped particles and the thickness of the ITZ phase around them is set to be uniform, which differs greatly from the realities and may cause the large deviation. To determine the ITZ percolation with the response of different phases in a more realistic way, a more satisfying three-dimensional (3D) polyphase model of concrete is developed, in which the convex ovoids and polyhedrons are separately adopted to represent the sands and gravels. The realistic nonuniform ITZ is also assigned for these aggregates based on their specific sizes and the W/C for the cement matrix. By coupling these models with the continuum percolation theory in statistical physics, the influence of individual phases on the global percolation threshold ϕ agg,c of ITZs is further studied by the simulation. The results reveal that the models here provide a smaller percolation threshold ϕ agg,c than the previous prediction models containing the simplistic uniform ITZs. There is reason to believe that these results in the work would be closer to the actual threshold in the realistic circumstance.

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Understanding the role of interfacial transition zone in cement paste and concrete

Cited by 3 publications

References 37 publications

Coral Concrete: Overview, Composition and its Behavior in Environment

Coral Concrete: Overview, Composition and its Behavior in Environment

Workability and Compressive Strength of Cement Concrete Prepared Using Al2O3 Nanoparticles

Continuum percolation of the realistic nonuniform ITZs in 3D polyphase concrete systems involving the aggregate shape and size differentiation

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