On the feasibility of using phase change materials (PCMs) to mitigate thermal cracking in cementitious materials

Fernandes, Fábio A. O.; Manari, Shilpa; Aguayo, Matthew; Santos, Kevin; Oey, Tandré; Wei, Zhenhua; Falzone, Gabriel; Neithalath, Narayanan; Sant, Gaurav

doi:10.1016/j.cemconcomp.2014.03.003

Cited by 159 publications

(121 citation statements)

References 33 publications

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“…It is clear that higher levels of replacement lead to higher strength loss for all tested ages: this is expected when a hard filler (i.e. limestone powder) [33] is substituted by softer inclusions (microencapsulated PCM) [28,30]. The same trend was reported previously for mortars where microencapsulated PCM was used to partially replace fine aggregate (sand) [31].…”

Section: Mechanical Propertiessupporting

confidence: 64%

“…Previous studies using similar microencapsulated PCM materials [28,31] have suggested that the drop in flexural strength due to PCM addition is less pronounced compared to the drop in compressive strength. Development of flexural strength as a function of time is shown in Figure 8.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…The reason was as follows: in previous studies (e.g. [28,30]) it was noticed that, when microencapsulated PCMs were used as a substitute for binder material, a significant drop in strength resulted. If, however, it is used as a substitute for sand, this drop was significantly lower [31].…”

Section: Experimental Program 21 Materialsmentioning

confidence: 99%

“…For use in cold regions, it has been proposed that suitable PCMs can increase freeze-thaw resistance of concrete [25,26] and melt ice and snow on concrete pavements [27]. In moderate and warm climates, early age thermal cracking may be prevented by incorporating PCMs to the concrete mix [28,29]. In both of these applications, a strain hardening cementitious composite containing microencapsulated PCMs would be of use.…”

Section: Introductionmentioning

confidence: 99%

“…One drawback of using microencapsulated PCMs in cementitious materials is that it may cause a drop in compressive strength [28,30]. This study aims to develop a strain hardening cementitious composite that incorporates microencapsulated phase change materials as a partial substitute of one of the mixture components.…”

Section: Introductionmentioning

confidence: 99%

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Development of ductile cementitious composites incorporating microencapsulated phase change materials

Šavija

Luković

Kotteman

et al. 2017

Int J Adv Eng Sci Appl Math

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In the past two decades, much research has been devoted to overcoming the inherent brittleness of cementitious materials. To that end, several solutions have been proposed, mainly utilizing fibres. One of the most promising classes of materials is strain hardening cementitious composite (SHCC). It utilizes PVA fibres, and it is relatively costly compared to regular concrete, so it is commonly used only in surface layers. In this paper, a multi-functional ductile cementitious composite based on SHCC has been developed. It uses microencapsulated phase change materials (PCMs), capable of reducing temperature fluctuations in the material due to their high heat of fusion. It is shown that, although addition of microencapsulated PCMs are detrimental to compressive strength, they have very little effect on the flexural strength and deflection capacity. In the future work, mixtures with higher PCM contents will be developed in order to exploit their heat storage capability better. This material has potential to reduce temperature effects on concrete surfaces, while at the same time being extremely ductile.

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Section: Mechanical Propertiessupporting

confidence: 64%

Section: Mechanical Propertiesmentioning

confidence: 99%

Section: Experimental Program 21 Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Development of ductile cementitious composites incorporating microencapsulated phase change materials

Šavija

Luković

Kotteman

et al. 2017

Int J Adv Eng Sci Appl Math

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Early Age Temperature Control in Mass Concrete Through Incorporation of Dispersed Phase Change Materials (PCMs)

et al. 2021

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There is a frequent need to take measures for temperature control in massive concrete structures, as to avoid thermal cracking risk at early ages (induced by temperature gradients inherent to hydration heat release). This research work has explored a procedure for temperature control through the incorporation of phase change materials (PCMs) in laboratory environment (mortar testing). Indeed, PCM's have the potential to store and release heat energy during phase change from solid to liquid, or vice versa. By choosing a PCM with a melting range between casting temperature and the expected peak temperature, it is possible to attenuate the temperature rise rate in concrete through heat storage (the melting process is endothermic). This paper presents and discusses an experimental work focused on the thermo-physical properties and thermal performance analysis of mortar with direct incorporation of pristine PCM (with a melting temperature of 34ºC and latent heat capacity of 240 J/g) in three volume fractions of 0, 10 and 20% in mixture compositions (volumetric percentage replacement with regard to sand particles), cast into partially insulated cubes with 320mm3 size. The thermal performance tests revealed the impact of the PCM in the thermal behavior of the cast element, by reducing the maximum peak temperatures in comparison with the reference case (without PCM). Mechanical tests were also performed and revealed that, as expected, their compressive and flexural strength are reduced. Nonetheless, the observed reduction might still be compatible with structural applications in specific contexts, even for the case of high PCM content incorporation (20%).

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Evaluating the Performance of Alkali-Activated Materials Containing Phase Change Materials: A Review

Golizadeh,

Meftahi,

Soliman

2024

Lecture Notes in Civil Engineering

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On the feasibility of using phase change materials (PCMs) to mitigate thermal cracking in cementitious materials

Cited by 159 publications

References 33 publications

Development of ductile cementitious composites incorporating microencapsulated phase change materials

Development of ductile cementitious composites incorporating microencapsulated phase change materials

Early Age Temperature Control in Mass Concrete Through Incorporation of Dispersed Phase Change Materials (PCMs)

Evaluating the Performance of Alkali-Activated Materials Containing Phase Change Materials: A Review

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