Correspondence. The Destruction of Concrete by Frost.

Collins, Andrew; Buchanan, Angus; Moran, T W; Seddon, A E; Spindel, M

doi:10.1680/ijoti.1945.13941

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[9][10][11][12][13][14] As for freeze-thaw resistance, Dong et al 13 indicated that the freeze-thaw damage of the concrete was accelerated when the mixture of the eolian sand exceeded 30%, and an excessive mix of the eolian sand resulted in bonding weakness, which was insufficient to offset the internal stress produced by the freeze-thaw cycle. In the past decades, several theories [15][16][17][18] have been proposed to explain the freeze damage mechanism, and researchers have suggested various solutions by adding complementary additives based on these theories, ranging from macro-sized additives to micro-sized nanoparticles. These additives can be categorized based on their function as follows: (a) air entraining agents, 19,20 providing extra pore volume to prevent frost heave; (b) consolidation agents, 21,22 reducing the porosity and refining the cement matrix; (c) crack crosslinking additives, 23,24 controlling the cracks to prevent crack propagation; (d) hydrophobic agents, 25,26 altering hydrophilicity of the cement matrix to resist the water invasion.…”

Section: Introductionmentioning

confidence: 99%

The effect of graphene oxide on dune sand cementitious composites reflected in enhancing freeze–thaw resistance: An experimental study

Wang

et al. 2023

Structural Concrete

View full text Add to dashboard Cite

To advance the utilization of dune sand, a sustainable albeit flawed resource, for structural engineering, the incorporation of graphene oxide (GO) is suggested as a potential means for improving durability of dune sand cementitious composites (DSCC). In this study, DSCC samples with varying GO concentrations were prepared. The effect of GO on the freeze–thaw resistance of DSCC was then studied by freeze–thaw cyclic test and mechanical test. In addition, to elucidate the mechanism underlying the observed enhancement in freeze–thaw resistance due to GO incorporation, thermogravimetric, mercury injection, adsorption, and morphological analyses were performed. The experimental results showed that incorporating GO into DSCC can enhance its freeze–thaw resistance without compromising its mechanical properties. The weight loss and relative dynamic modulus of elasticity of the specimen with 0.06 wt% GO decreased by 92.83% and 64.96%, respectively, as well as the compressive strength increased by 22.76% after 150 freeze–thaw cycles compared with the control specimen. The enhancing effect of adding GO on the freeze–thaw resistance of DSCC was found to be attributed to the promotion of hydration and the control of internal structure. Notably, the modification of GO on the smooth dune and the reinforcement of GO on the interface between dune sand particles and cement matrix was identified, which may be the new evidence for testifying the GO enhancement on the freeze–thaw resistance of dune sand cementitious composites.

show abstract

Section: Introductionmentioning

confidence: 99%

The effect of graphene oxide on dune sand cementitious composites reflected in enhancing freeze–thaw resistance: An experimental study

Wang

et al. 2023

Structural Concrete

View full text Add to dashboard Cite

show abstract

Correspondence. The Destruction of Concrete by Frost.

Cited by 1 publication

References 0 publications

The effect of graphene oxide on dune sand cementitious composites reflected in enhancing freeze–thaw resistance: An experimental study

The effect of graphene oxide on dune sand cementitious composites reflected in enhancing freeze–thaw resistance: An experimental study

Contact Info

Product

Resources

About