Thermal Performance Assessment of a Wall Made of Lightweight Concrete Blocks with Recycled Brick and Ground Polystyrene

Krstić, Hrvoje; Miličević, Ivana; Markulak, Damir; Domazetović, Mihaela

doi:10.3390/buildings11120584

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Thermal Performance Assessment of a Wall Made of Lightweight Concrete Blocks with Recycled Brick and Ground Polystyrene

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Faculty of Civil Engineering and Architecture Osijek, Josip Juraj Strossmayer University of Osijek, 3, Vladimir Prelog Street, 31000 Osijek, Croatia

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Academic Editor: Łukasz Sadowski

Buildings 2021, 11(12), 584; https://doi.org/10.3390/buildings11120584

Received: 5 November 2021 / Revised: 19 November 2021 / Accepted: 23 November 2021 / Published: 25 November 2021

(This article belongs to the Special Issue Utilization of Waste Materials in Building Engineering)

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Abstract

Hollow concrete masonry blocks made of low strength self-compacting concrete with recycled crushed brick and ground polystyrene as an aggregate (RBC-EP blocks), and their expected structural role as masonry infill in steel frames, has been confirmed in previous research studies, thus the extensive investigation of thermal properties is presented in this paper to fully approve their potential application in practice. The Heat Flow and Temperature Based Method was used to conduct in-situ measurements of the wall thermal transmittance (U-value). The experimental U-values of the wall without insulation varied from 1.363 to 1.782 W/m²·K, and the theoretical value was calculated to be 2.01 W/m²·K. Thermal conductivity of the material used for making RBC-EP blocks was measured in a laboratory by using a heat flow meter instrument. To better understand the thermal performance characteristics of a wall constructed from RBC-EP blocks, a comparison with standard materials currently used and found on the market was performed. Walls constructed from RBC-EP blocks show an improvement of building technology and environmentally based enhancement of concrete blocks, since they use recycled materials. They can replace standard lightweight concrete blocks due to their desired mechanical properties, as well as the better thermal performance properties compared to commonly used materials for building walls. View Full-Text

Keywords: masonry block; self-compacting concrete; recycled brick; building technology; in-situ measurements; thermal transmittance (U-value)

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MDPI and ACS Style

Krstić, H.; Miličević, I.; Markulak, D.; Domazetović, M. Thermal Performance Assessment of a Wall Made of Lightweight Concrete Blocks with Recycled Brick and Ground Polystyrene. Buildings 2021, 11, 584. https://doi.org/10.3390/buildings11120584

AMA Style

Krstić H, Miličević I, Markulak D, Domazetović M. Thermal Performance Assessment of a Wall Made of Lightweight Concrete Blocks with Recycled Brick and Ground Polystyrene. Buildings. 2021; 11(12):584. https://doi.org/10.3390/buildings11120584

Chicago/Turabian Style

Krstić, Hrvoje, Ivana Miličević, Damir Markulak, and Mihaela Domazetović. 2021. "Thermal Performance Assessment of a Wall Made of Lightweight Concrete Blocks with Recycled Brick and Ground Polystyrene" Buildings 11, no. 12: 584. https://doi.org/10.3390/buildings11120584

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Thermal Performance Assessment of a Wall Made of Lightweight Concrete Blocks with Recycled Brick and Ground Polystyrene

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