Thermal enhanced cement-lime mortars with phase change materials (PCM), lightweight aggregate and cellulose fibers

Guardia, Cynthia; Barluenga, Gonzalo; Palomar, Irene; Diarce, Gonzalo

doi:10.1016/j.conbuildmat.2019.06.098

Cited by 57 publications

(24 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two different temperatures were set inside the box: 25 °C and 40 °C. At 25 °C inside the box, the testing specimens remained below the PCM melting point (nominally 23 °C, although experimentally established at 22 °C [ 16 ]), while at 40 °C inside the box, all the plates were 30 °C. Thermal conductivities, λ S (mortar’s conductivity when PCM was in a solid state) and λ L (mortar’s conductivity when PCM was in a liquid state) were calculated after a thermal steady state was reached using Fourier’s Law [ 26 ].…”

Section: Methodsmentioning

confidence: 99%

“…Different authors have incorporated this type of microencapsulated PCM in building materials such as cement, gypsum or cement-lime mortars [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ]. Besides, other additions, such as fibres (cellulose) and lightweight aggregates (LWAs, e.g., perlite), can be also incorporated to improve the thermal insulation capacity of mortars [ 16 , 17 , 18 ]. Some authors have studied the combined use of PCMs and these additions in mortars, taking advantage of both the the energy storage capacity of PCMs and the thermal insulation capacity [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…Besides, other additions, such as fibres (cellulose) and lightweight aggregates (LWAs, e.g., perlite), can be also incorporated to improve the thermal insulation capacity of mortars [ 16 , 17 , 18 ]. Some authors have studied the combined use of PCMs and these additions in mortars, taking advantage of both the the energy storage capacity of PCMs and the thermal insulation capacity [ 16 ]. It was found that PCM efficiency depends not only on the amount of PCM but also on the other components of the mortars [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…Some authors have studied the combined use of PCMs and these additions in mortars, taking advantage of both the the energy storage capacity of PCMs and the thermal insulation capacity [ 16 ]. It was found that PCM efficiency depends not only on the amount of PCM but also on the other components of the mortars [ 16 ]. The amount of PCM incorporated modified some thermal, physical and mechanical properties of mortars.…”

Section: Introductionmentioning

confidence: 99%

“…The experimental characterisation of materials’ properties is the first step necessary to evaluate the possibilities of their application for building purposes [ 1 , 12 , 13 , 14 , 16 ]. However, the actual effect of the newly designed materials for improving building enclosures can only be fully evaluated by considering the multi-layered composition of real enclosures.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

PCM Cement-Lime Mortars for Enhanced Energy Efficiency of Multilayered Building Enclosures under Different Climatic Conditions

2020

Self Cite

View full text Add to dashboard Cite

Phase change materials (PCMs) are promising materials for the energy efficiency improvement of building enclosures, due to their energy storage capacity. The thermal behaviour of a multi-layered building enclosure with five different compositions of PCM cement-lime mortars was evaluated under heating and cooling cycles. The behaviour of cement-lime mortars with 20% of microencapsulated PCM mixed with other additions, such as cellulose fibres and perlite, a lightweight aggregate (LWA), were studied under climate conditions of 15 °C–82% RH (cooling) and 30 °C–33% RH (heating) that were applied with a climatic chamber. Temperature and heat flux on both sides of the multi-layered enclosure were experimentally measured in laboratory tests. Temperature was also measured on both sides of the PCM cement-lime mortar layer. It was observed that the addition of the PCM cement-lime mortar layer delayed the heat flux through the enclosure. During a heating cycle, the incorporation of PCM delayed the arrival of the heat wave front by 30 min (8.1% compared to the reference mortar without PCM). The delay of the arrival of the heat wave front during the cooling cycle after adding PCM, compared to the reference mixture, reached 40.6% (130 min of delay). Furthermore, the incorporation of LWA in PCM cement-lime mortars also improved thermal insulation, further increasing energy efficiency of the building enclosure, and can be used not only for new buildings but also for energy rehabilitation of existing building enclosures.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

PCM Cement-Lime Mortars for Enhanced Energy Efficiency of Multilayered Building Enclosures under Different Climatic Conditions

2020

Self Cite

View full text Add to dashboard Cite

show abstract

Thermal energy storage phase change material cement mortar incorporated with clinical waste composites

et al. 2021

View full text Add to dashboard Cite

Clinical wastes generated from hospitals and other health care institutions have increased globally, partly because of COVID-19 pandemic. Appropriate handling and disposal of this wastes is important because of their impact on human and environment. One approach is the use this wastes as composite fillers in phase change material (PCM) added into concrete and mortars used in built sector. This study investigates silicon catheter waste (SCW) and latex glove waste (LGW) as fillers mix with PCM cement mortar and evaluates the thermal performance. To determine a viable inclusion method for the cement mortar varying weight (2.5, 5.0, 7.5, and 10.0)% of PCM mixed with SCW and LGW were used as replacement of the composite aggregates. Characterization of the encapsulate PCM cement mortar and thermal analysis under elevated temperatures, compressive strength test, water absorption, porosity, and density was conducted. The microstructural analysis and thermal behavior of the modified specimens after 28 days was tested under dynamic ambient condition. From the result the quality of the cement mortar reduced from excellent to poor as the loading concentration increased from 0 to 10%. The addition of the PCM SCW and PCM LGW to the cement mortar reduced the compressive strength by 38% and 40%, respectively. The density value reduced by 3.2% and 6.8% under elevated temperature and the water absorption increased by 56% and 39%. The morphology of PCM cement mortar mixed with SCW and LGW showed less void spaces with increased homogenous formation.No thermal decomposition was observed in the PCM cement mortar with the addition of the SCW and LGW at elevated temperatures. The SCW and LGW fillers increased the thermal conductivity of the PCM mortar by 14% and 18%, and prolonged the surface temperature by 5 hours by an average of 5 C and 7 C, respectively. In addition, the SCW and LGW fillers mixed with PCM cement mortar was found to enhance the thermal performance by 65% compared with the typical cement mortar. There are huge potential on their application in building and construction industry.

show abstract

Adaptative and Bioinspired Materials: Cement-Based Materials with Self-Modulating and Self-Sensing Properties

Puentes,

Palomar,

Barluenga

et al. 2023

Architecture Inspired by Nature

View full text Add to dashboard Cite

Thermal enhanced cement-lime mortars with phase change materials (PCM), lightweight aggregate and cellulose fibers

Cited by 57 publications

References 29 publications

PCM Cement-Lime Mortars for Enhanced Energy Efficiency of Multilayered Building Enclosures under Different Climatic Conditions

PCM Cement-Lime Mortars for Enhanced Energy Efficiency of Multilayered Building Enclosures under Different Climatic Conditions

Thermal energy storage phase change material cement mortar incorporated with clinical waste composites

Adaptative and Bioinspired Materials: Cement-Based Materials with Self-Modulating and Self-Sensing Properties

Contact Info

Product

Resources

About