Physical, Mechanical, thermal and fire behaviour of recycled aggregate concrete block wall system with rice husk insulation

Ma, Wenzhuo; Kolb, Torsten; Rüther, Norbert; Meinlschmidt, Peter; Chen, Haoze; Yan, Libo

doi:10.1016/j.enbuild.2024.114560

Energy and Buildings

2024

DOI: 10.1016/j.enbuild.2024.114560

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Physical, Mechanical, thermal and fire behaviour of recycled aggregate concrete block wall system with rice husk insulation

Wenzhuo Ma,

Torsten Kolb,

Norbert Rüther

et al.

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2024

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Cited by 3 publications

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Influence of bio-aggregates on the physical and hygrothermal properties of bio-concretes

Paiva,

dos Santos,

de Aguiar

et al. 2024

Construction and Building Materials

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Influence of bio-aggregates on the physical and hygrothermal properties of bio-concretes

Paiva,

dos Santos,

de Aguiar

et al. 2024

Construction and Building Materials

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Bond and tensile properties of flax textile reinforced recycled aggregate concrete: Strategies for interfacial enhancement and corresponding mechanisms

Ma,

Yan,

Kasal

2024

Case Studies in Construction Materials

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Towards Sustainable Construction: Evaluating Thermal Conductivity in Advanced Foam Concrete Mixtures

Mohtadi,

Ghomeishi,

Dehghanbanadaki

2024

Buildings

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Traditional concrete structures are frequently linked to poor energy efficiency and substantial heat loss, which pose significant environmental issues. To enhance thermal insulation and reduce heat loss, the use of precast insulated walls is suggested. This research introduces a new energy-efficient precast concrete panel (PCP). We explored various material combinations, including air bubbles, nano microsilica compound (NMC), nano microsilica powder (NMP), and latex, to determine the most effective formulation. A total of 99 tests were performed to assess the compressive strength of the samples, with 28 tests selected for thermal conductivity evaluations at temperatures of 300 °C and 400 °C based on satisfactory compressive strength results. The results indicated that the optimal mix of 4% air bubbles and 13% NMC achieved the lowest thermal conductivities of 1.31 W/m·K and 1.20 W/m·K at 300 °C and 400 °C, respectively, showing improvement ratios of 7% and 15.5% compared to the baseline tests. Additionally, the tests that included latex did not meet the thermal conductivity standards. The optimal combinations identified in this research can be effectively utilized in PCPs, resulting in significant energy savings. It is expected that stakeholders in the green building sector will recognize these proposed PCPs as a practical energy-efficient solution to advance sustainable and environmentally friendly construction practices.

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Physical, Mechanical, thermal and fire behaviour of recycled aggregate concrete block wall system with rice husk insulation

Cited by 3 publications

References 30 publications

Influence of bio-aggregates on the physical and hygrothermal properties of bio-concretes

Influence of bio-aggregates on the physical and hygrothermal properties of bio-concretes

Bond and tensile properties of flax textile reinforced recycled aggregate concrete: Strategies for interfacial enhancement and corresponding mechanisms

Towards Sustainable Construction: Evaluating Thermal Conductivity in Advanced Foam Concrete Mixtures

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