Improved thermal insulance of cement stabilised rammed earth embedding lightweight aggregates

A. Karrech; V. Strazzeri; M. Elchalakani

doi:10.1016/j.conbuildmat.2020.121075

Improved thermal insulance of cement stabilised rammed earth embedding lightweight aggregates

A. Karrech^*, V. Strazzeri, M. Elchalakani

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Cement-stabilised rammed earth has gained a revived momentum with the increasing awareness of sustainability. In this study, we use a multiscale homogenisation method to predict the impact of embedding low thermal conductivity inclusions that improve the overall insulation. In addition, we propose an experimental campaign where specimens containing crushed limestone and various volume fractions of polystyrene inclusions (0 to 0.25 with increment 0.05) are tested to estimate the thermal conductivity and specific heat. The proposed multiscaling approach and experimental work have shown good agreement; it has been observed that polystyrene inclusions improve both the thermal insulance and the thermal mass of cement-stabilised rammed earth.

Original language	English
Article number	121075
Journal	Construction and Building Materials
Volume	268
DOIs	https://doi.org/10.1016/j.conbuildmat.2020.121075
State	Published - 25 Jan 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Multi-scaling
R-value
Sustainability
Thermal conductivity

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Materials Science

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10.1016/j.conbuildmat.2020.121075

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title = "Improved thermal insulance of cement stabilised rammed earth embedding lightweight aggregates",

abstract = "Cement-stabilised rammed earth has gained a revived momentum with the increasing awareness of sustainability. In this study, we use a multiscale homogenisation method to predict the impact of embedding low thermal conductivity inclusions that improve the overall insulation. In addition, we propose an experimental campaign where specimens containing crushed limestone and various volume fractions of polystyrene inclusions (0 to 0.25 with increment 0.05) are tested to estimate the thermal conductivity and specific heat. The proposed multiscaling approach and experimental work have shown good agreement; it has been observed that polystyrene inclusions improve both the thermal insulance and the thermal mass of cement-stabilised rammed earth.",

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author = "A. Karrech and V. Strazzeri and M. Elchalakani",

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doi = "10.1016/j.conbuildmat.2020.121075",

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T1 - Improved thermal insulance of cement stabilised rammed earth embedding lightweight aggregates

AU - Karrech, A.

AU - Strazzeri, V.

AU - Elchalakani, M.

PY - 2021/1/25

Y1 - 2021/1/25

N2 - Cement-stabilised rammed earth has gained a revived momentum with the increasing awareness of sustainability. In this study, we use a multiscale homogenisation method to predict the impact of embedding low thermal conductivity inclusions that improve the overall insulation. In addition, we propose an experimental campaign where specimens containing crushed limestone and various volume fractions of polystyrene inclusions (0 to 0.25 with increment 0.05) are tested to estimate the thermal conductivity and specific heat. The proposed multiscaling approach and experimental work have shown good agreement; it has been observed that polystyrene inclusions improve both the thermal insulance and the thermal mass of cement-stabilised rammed earth.

AB - Cement-stabilised rammed earth has gained a revived momentum with the increasing awareness of sustainability. In this study, we use a multiscale homogenisation method to predict the impact of embedding low thermal conductivity inclusions that improve the overall insulation. In addition, we propose an experimental campaign where specimens containing crushed limestone and various volume fractions of polystyrene inclusions (0 to 0.25 with increment 0.05) are tested to estimate the thermal conductivity and specific heat. The proposed multiscaling approach and experimental work have shown good agreement; it has been observed that polystyrene inclusions improve both the thermal insulance and the thermal mass of cement-stabilised rammed earth.

KW - Multi-scaling

KW - R-value

KW - Sustainability

KW - Thermal conductivity

UR - https://www.scopus.com/pages/publications/85095591504

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DO - 10.1016/j.conbuildmat.2020.121075

M3 - Article

AN - SCOPUS:85095591504

SN - 0950-0618

VL - 268

JO - Construction and Building Materials

JF - Construction and Building Materials

M1 - 121075

ER -

Improved thermal insulance of cement stabilised rammed earth embedding lightweight aggregates

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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