Mechanical properties and crack evolution of SCC with macro-crack under freeze-thaw cycles

Ma, Kun; Feng, Ke; Wang, Zhongzhi; Long, Guangcheng; Xie, Youjun; Li, Wenxu

doi:10.1016/j.jobe.2023.106323

Cited by 5 publications

(2 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, these fibers have been proven advantageous in bolstering concrete durability [24,25] and reducing costs [26]. Meanwhile, it has been observed that the durability deterioration of concrete during F-T cycles is a multifaceted and multiscale process, characterized by the substantial accrual of crack propagation [27,28]. Hence, it is eminently judicious to use a combination of SFs and BFs to leverage their synergistic effect across different structural factors and stress phases of concrete and improve the durability against the F-T of concrete.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Hybrid Steel/Basalt Fibers on the Durability of Concrete Pavement against Freeze–Thaw Cycles

Yu,

Yi,

Zhang

et al. 2023

Materials

View full text Add to dashboard Cite

Freeze–thaw (F-T) is one of the principal perils afflicting concrete pavements. A remedial strategy used during construction encompasses the integration of hybrid fibers into the concrete matrix. An extant research gap persists in elucidating the damage mechanism inherent in hybrid steel fiber (SF)- and basalt fiber (BF)-reinforced concrete subjected to F-T conditions. This paper empirically investigated the durability performance of hybrid fiber-reinforced concrete (HFRC) subjected to F-T cycles. The impact of SF/BF hybridization on mass loss, abrasion resistance, compressive strength, flexural strength, damaged layer thickness, and the relative dynamic modulus of elasticity (RDME) was examined. The damage mechanism was explored using micro-hardness and SEM analysis. The results indicate that incorporating hybrid SF/BF effectively enhances the F-T resistance of concrete and prolongs the service life of concrete pavement. The mechanisms underlying these trends can be traced back to robust bonding at the fiber/matrix interface. Randomly dispersed SFs and BFs contribute to forming a three-dimensional spatial structure within the concrete matrix, suppressing the expansion of internal cracks caused by accumulated hydrostatic pressure during the F-T cycle. This research outcome establishes a theoretical foundation for the application of HFRC to concrete pavements in cold regions.

show abstract

Section: Introductionmentioning

confidence: 99%

The Effects of Hybrid Steel/Basalt Fibers on the Durability of Concrete Pavement against Freeze–Thaw Cycles

Yu,

Yi,

Zhang

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

“…The durability of concrete is a very current issue, given that it is regarded as the core material of modern buildings and that the problem of its degradation owing to the aggressive effects of numerous environmental conditions is obvious. One of the most prominent deteriorating mechanisms in regions with cold winter conditions is the action of frost [1], [2]. The destructive force of this impact is amplified in the presence of salt, which is commonly used in the winter regime to accelerate the process of thawing snow and ice [2], [3], and [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of aggregate origin on freeze/thaw resistance of self-compacting concrete with and without a de-icing agent

Broćeta,

Malešev,

Radonjanin

et al. 2023

Građ materijali i konstrukcije

View full text Add to dashboard Cite

Freezing and thawing cycles, with or without de-icing agents, are the principal causes of concrete structure degradation during the winter. This paper explores the effects of aggregate type on the level of degradation of self-compacting concrete (SCC) due to freeze-thaw (f/t) action. Natural river (NRA) and/or natural crushed (NCA) aggregate, as well as the recycled aggregate of known (RCA-N) and unknown provenance (RCA-A), were employed to produce six different SCC mixtures. The temperature, density, air content, and consistency were determined for fresh concrete, while compressive strength, water absorption by gradual immersion and vacuuming, and frost resistance with and without de-icing salts were tested for hardened concrete. Even though all tested concretes have met the criteria for frost resistance with and without the de-icing salts, it was found that the type of aggregate has a noticeable influence on it. The type of natural aggregate has little effect on SCC frost resistance, but it does influence its behavior when frost and salt are present at the same time. In f/t conditions, RCA-N can be used the same way as natural aggregate, while RCA-A causes the biggest frost resistance reduction. However, both RCAs are not recommended for application in conditions of simultaneous frost and salt impacts.

show abstract

Numerical simulation of the meso-mechanical properties of double cruciform fissures rocks after freeze–thaw cycles

Cao,

Hu,

Wang

et al. 2024

Comp. Part. Mech.

View full text Add to dashboard Cite

Mechanical properties and crack evolution of SCC with macro-crack under freeze-thaw cycles

Cited by 5 publications

References 5 publications

The Effects of Hybrid Steel/Basalt Fibers on the Durability of Concrete Pavement against Freeze–Thaw Cycles

The Effects of Hybrid Steel/Basalt Fibers on the Durability of Concrete Pavement against Freeze–Thaw Cycles

Effect of aggregate origin on freeze/thaw resistance of self-compacting concrete with and without a de-icing agent

Numerical simulation of the meso-mechanical properties of double cruciform fissures rocks after freeze–thaw cycles

Contact Info

Product

Resources

About