A method for assessment of the freeze–thaw resistance of preformed foam cellular concrete

Tikalsky, Paul J.; Pospisil, James; Macdonald, W. S.

doi:10.1016/j.cemconres.2003.11.005

Cited by 185 publications

(82 citation statements)

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“…Most studies have investigated freeze–thaw damage and dynamic mechanical properties of concrete separately. Static mechanical properties and failure mechanisms of concrete in response to freeze–thaw treatment have been investigated for a long time . Some studies have investigated static mechanical properties and failure mechanism of concrete in response to freeze–thaw treatment .…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the dynamic mechanical properties of concrete under freeze–thaw cycles

Han

Tian

2018

Structural Concrete

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This study investigated the dynamic mechanical properties of concrete subjected to freeze–thaw cycles. Freeze–thaw cycle experiments were carried out using a freeze–thaw tester to vary the temperature from 20 ± 2 °C to −20 ± 2 °C, from 0 to 100 cycles. Uniaxial compression tests were performed with a tested strain rate ranging from 1.0 × 10−5/s to 1.0 × 10−2/s using a servo‐hydraulic testing machine. Dynamic compressive strengths were measured and the effects of freeze–thaw cycles and strain rates were investigated. The experimental results suggested that the dynamic compressive strength of specimens generally decreased as the number of freeze–thaw cycles increased, and the dynamic compressive strength was significantly affected by strain rates. The dynamic compressive strength of concrete and the dynamic increase factor both increased with increased strain rate. X‐ray computed tomography scanning was used to study the strain‐rate effects on internal structure damage in the specimens. Cracks propagated along two different paths, passing along the aggregate–mortar interfaces and passing through the aggregates along the failure surfaces.

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Section: Introductionmentioning

confidence: 99%

Experimental study on the dynamic mechanical properties of concrete under freeze–thaw cycles

Han

Tian

2018

Structural Concrete

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“…Cellular (aerated) concrete is a lightweight material composed of cementitious mortar surrounding disconnected bubbles which are a result of either physical or chemical processes during which either air is introduced into the mortar mixture or gas is formed within it [2]. Although aerated concrete is known as an insulation material, its structural features are also of considerable interest [3].…”

Section: Introductionmentioning

confidence: 99%

The Use of Additives to Enhance Properties of Pre- Formed Foamed Concrete

Hilal¹,

Thom²,

Dawson³

2015

IJET

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“…The tension characteristics of high-strength concrete after F-T actions were investigated (Marzouk et al, 1994). The F-T durability of cellular concrete was studied (Tikalsky et al 2004). The frost resistance of high performance concrete was experimentally investigated (Micah et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Damage in Concrete Suffered Freeze-Thaw Cycles by CT Technique

Tian

Han

2016

ACT

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The evolution and spatial distribution of internal random pore structure are key factors in damage mechanism and macro-mechanical properties of concrete material under freeze-thaw (F-T) environment. This paper was presented to discover the deterioration mechanism of concrete under F-T actions. Through the experiment, visual examination was employed to evaluate the surface damage; the degradation considering the mass loss and uniaxial compressive strength of concrete was statistically analyzed under F-T environment. Moreover, X-ray tomography was adopted to characterize the concrete internal structure subjected to F-T cycles. The specimens exposed to F-T environment were scanned at regular intervals. Coupled with CT test, the pore space was characterized in terms of porosity and pore distribution by image analysis. And the relationship between the pore structure and the F-T cycles was described quantitatively by the fractal theory. The results indicated that the fractal dimension of the pore structure presented "down-up" trend with the number of F-T cycles increasing. The pore structure evolution changed from chaos to order and then to a process of disorder. The results demonstrated that F-T cycles accelerated the generation of meso-damage in concrete, which leads to more severe damage under F-T cycles.

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A method for assessment of the freeze–thaw resistance of preformed foam cellular concrete

Cited by 185 publications

References 1 publication

Experimental study on the dynamic mechanical properties of concrete under freeze–thaw cycles

Experimental study on the dynamic mechanical properties of concrete under freeze–thaw cycles

The Use of Additives to Enhance Properties of Pre- Formed Foamed Concrete

Evaluation of Damage in Concrete Suffered Freeze-Thaw Cycles by CT Technique

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