# Effect of microstructure differences on the thermal and mechanical behaviors of porous cementitious composites using phase change materials

https://mdr.nims.go.jp/datasets/89db8436-f893-4196-823e-838efb476ef0

## File

- [Effect of microstructure differences on the thermal and mechanical behaviors of porous cementitious composites using phase change materials.pdf](https://mdr.nims.go.jp/filesets/cb3fa4a7-8cce-4430-8093-3e1ed729ab6e/download) ([Detail](https://mdr.nims.go.jp/filesets/cb3fa4a7-8cce-4430-8093-3e1ed729ab6e.md))

## Id

89db8436-f893-4196-823e-838efb476ef0

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-13T01:59:23.780144Z

## Updated at

2024-12-16T03:30:35.749009Z

## Published at

2025-02-17T09:32:24.651007Z

## Doi



## First published url

https://doi.org/10.26599/jic.2025.9180076

## Date published

2024-07-15

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Effect of microstructure differences on the thermal and mechanical behaviors
    of porous cementitious composites using phase change materials
  title_type: original
  lang: en

## Description

- description: This study focuses on the effect of varying microstructures on the
    thermal and mechanical behavior of porous concrete impregnated with a phase change
    material (PCM), referred to as PoroPCM. This study involved the preparation of
    a PCM-embedded cement paste, which included a 20% volume replacement of paraffin-based
    melamine–formaldehyde-coated microencapsulated PCM. The prepared PCM-embedded
    cement paste was mixed with approximately 20%, 40%, and 60% volume substitutions
    of aerated foam to prepare the PoroPCM specimens. Two series of specimens were
    prepared by using two distinct mixing methods. One involved gentle mixing at low
    energy, whereas the other used a high-speed mixer. X-ray computed tomography (CT)
    was used to visualize the 3D microstructures of the PoroPCM specimens. The datasets
    extracted from X-ray CT scans were reconstructed to quantify the spatial distribution
    of the pore network and analyze their effects on the thermal and mechanical behaviors,
    which were used to understand the governing parameters with different pore networks.
    The thermal behavior was measured in a temperature-controlled environmental chamber
    by placing a thermocouple at the center of the 100 mm cube specimens. The results
    indicated a significant enhancement in the thermal performance (delay in temperature
    increase) of the PoroPCM specimens owing to the phase transition and heat storage
    capacity of the PCM particles. In addition, the thermal behavior appeared to be
    influenced by the porosity, size distribution of air voids, and internal moisture
    content, which were due to changes in the microstructure of the PoroPCM. Compressive
    strength tests revealed that the failure behavior of PoroPCM under compressive
    load was ductile with large deformation, and the failure propagated by disaggregation
    of a local collapse of the pore walls. The compressive strength might be influenced
    by porosity but may be free of the influence of pore sizes.
  description_type: abstract
  lang: und

## Creator

- name: Md Suman Mia
  role: author
- name: Satya Medepalli
  role: author
- name: Yuya Takahashi
  role: author
- name: Koichi Tsuchiya
  role: author
  orcid: https://orcid.org/0000-0003-0267-2727
- name: Tetsuya Ishida
  role: author

## Contact agent



## Publisher

organization: Tsinghua University Press

## Managing organization



## Keyword

- subject: PoroPCM
  schema: not_defined
- subject: heat strage capacity
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of Intelligent Construction
  issn: '29583861'

## Conference



## Related item



## Funding

- identifier: '18072056'
  funder_name: JST
  description: EIG-Concert-Japan

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: cb3fa4a7-8cce-4430-8093-3e1ed729ab6e
  filename: Effect of microstructure differences on the thermal and mechanical behaviors
    of porous cementitious composites using phase change materials.pdf
  content_type: application/pdf
  size: 1296446
  md5: 458ae489095da5c3cffbea7ab736db15

## Thumbnail

fileset_id: cb3fa4a7-8cce-4430-8093-3e1ed729ab6e
filename: Effect of microstructure differences on the thermal and mechanical behaviors
  of porous cementitious composites using phase change materials.pdf