Biomimetic ice recrystallization inhibition-active poly(vinyl alcohol) enhances the freeze-thaw resistance of cement paste

Frazier, Shane D.; Lobo, Aparna J.; Matar, Mohammad G.; Srubar, Wil V.

doi:10.1016/j.cemconres.2022.106905

Cited by 5 publications

(2 citation statements)

References 37 publications

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“…As water freezes, it expands, exerting pressure on the surrounding material [ 41 ]. This pressure, along with the formation of ice crystals, can lead to the disintegration of weak bonds and the creation of new cracks or the enlargement of existing ones [ 42 ]. Over time, this cumulative damage results in a significant loss of material integrity.…”

Section: Discussionmentioning

confidence: 99%

Freeze–Thaw Damage Characterization of Cement-Stabilized Crushed Stone Base with Skeleton Dense Gradation

Xiao,

An,

et al. 2024

Materials

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The skeleton dense graded cement-stabilized crushed stone base is a widely used material for road construction. However, this material is susceptible to freeze–thaw damage, which can lead to degradation and failure, for which there is still a lack of an in-depth understanding of the freeze–thaw damage characteristics. This study aims to assess the mechanical performance and the freeze–thaw damage characteristics of the cement-stabilized crushed stone base with skeleton dense gradation based on a mechanical test and acoustic technology in a laboratory. There is a gradually increasing trend in the mass loss rate of the base material with an increase in freeze–thaw cycles. The curve steepens significantly after 15 cycles, following a parabola-fitting pattern relationship. The compressive strength of the cement-stabilized crushed stone base also decreased with a parabola-fitting pattern, and the decrease rate may accelerate as the freeze–thaw cycles increase. The resilience modulus of the base material decreased with increasing freeze–thaw cycles, following a parabolic trend. This suggests that the material’s resistance to freeze–thaw damage decreases with increasing cycles. The ultrasonic wave velocity decreased with increasing freeze–thaw cycles, exhibiting a parabolic trend. This decline can be attributed to microcracks and defects developing within the material, offering insights for monitoring and predicting its service life. The damage progression of the cement-stabilized crushed stone base was found to occur in three stages: initial, stationary, and failure. The duration of stage I increased with freeze–thaw cycles, while the duration of stage III decreased. The findings provide valuable insights into the mechanisms and processes of freeze–thaw damage in a cement-stabilized crushed stone base with skeleton dense gradation.

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Section: Discussionmentioning

confidence: 99%

Freeze–Thaw Damage Characterization of Cement-Stabilized Crushed Stone Base with Skeleton Dense Gradation

Xiao,

An,

et al. 2024

Materials

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“…It has high ionic conductivity, superior water retention prowess, and cycling stability, can be a viable filling candidate [ 30 – 32 ]. PVA has also shown commendable interface compatibility with cement [ 33 , 34 ], effectively filling voids and mending fissures. Additionally, compared to other commonly used electrolyte materials such as sulfuric acid and sodium sulfate [ 35 ] which may cause corrosion to the cement, KOH brings a stronger alkaline environment and is conducive to the hydration reaction and strength development.…”

Section: Introductionmentioning

confidence: 99%

A Biomimetic Cement-Based Solid-State Electrolyte with Both High Strength and Ionic Conductivity for Self-Energy-Storage Buildings

Lin,

Xing,

Zhou

et al. 2024

Research

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Cement-based materials are the foundation of modern buildings but suffer from intensive energy consumption. Utilizing cement-based materials for efficient energy storage is one of the most promising strategies for realizing zero-energy buildings. However, cement-based materials encounter challenges in achieving excellent electrochemical performance without compromising mechanical properties. Here, we introduce a biomimetic cement-based solid-state electrolyte (labeled as l -CPSSE) with artificially organized layered microstructures by proposing an in situ ice-templating strategy upon the cement hydration, in which the layered micropores are further filled with fast-ion-conducting hydrogels and serve as ion diffusion highways. With these merits, the obtained l -CPSSE not only presents marked specific bending and compressive strength (2.2 and 1.2 times that of traditional cement, respectively) but also exhibits excellent ionic conductivity (27.8 mS·cm −1 ), overwhelming most previously reported cement-based and hydrogel-based electrolytes. As a proof-of-concept demonstration, we assemble the l -CPSSE electrolytes with cement-based electrodes to achieve all-cement-based solid-state energy storage devices, delivering an outstanding full-cell specific capacity of 72.2 mF·cm −2 . More importantly, a 5 × 5 cm 2 sized building model is successfully fabricated and operated by connecting 4 l -CPSSE-based full cells in series, showcasing its great potential in self-energy-storage buildings. This work provides a general methodology for preparing revolutionary cement-based electrolytes and may pave the way for achieving zero-carbon buildings.

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Enhancing and functionalizing cement mortar with one-step water-based graphene nanofluid additives

Jiang,

Kong,

Zhu

et al. 2024

Construction and Building Materials

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Biomimetic ice recrystallization inhibition-active poly(vinyl alcohol) enhances the freeze-thaw resistance of cement paste

Cited by 5 publications

References 37 publications

Freeze–Thaw Damage Characterization of Cement-Stabilized Crushed Stone Base with Skeleton Dense Gradation

Freeze–Thaw Damage Characterization of Cement-Stabilized Crushed Stone Base with Skeleton Dense Gradation

A Biomimetic Cement-Based Solid-State Electrolyte with Both High Strength and Ionic Conductivity for Self-Energy-Storage Buildings

Enhancing and functionalizing cement mortar with one-step water-based graphene nanofluid additives

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