Monitoring of drying kinetics evolution and hygrothermal properties of new earth-based materials using climatic chamber simulation

Azil, Athmane; Touati, Karim; Sebaïbi, Nassim; Guern, Michel Le; Streiff, François; Goodhew, Steve; Gomina, Moussa; Boutouil, Mohamed

doi:10.1016/j.cscm.2022.e01798

Cited by 4 publications

(2 citation statements)

References 38 publications

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“…The prevalent bioadditives commonly employed include hemp [37][38][39][40][41][42][43][44], wheat [10,41,[45][46][47][48][49], and barley [10,35,[50][51][52]. Additionally, alternative bioadditives encountered in various studies encompass reed [37,41,[53][54][55], olive [56][57][58], rice [53,59], straw [37,[60][61][62][63], flax [31,47,54,64], bagasse [59], corn [51], alfa [65,66], hibiscus cannabinus [67], kenaf [68], lavender [50], palm [69], pennisetum setaceum [70], pumice [43]…”

Section: Comprehensive Analysis Of Studies Investigating the Hygrothe...mentioning

confidence: 99%

Hygrothermal Optimization for Excavated Soil Reuse in Various Climate Buildings: A Global Literature Meta-Analysis

Fogue Djombou,

Gorra,

Malet-Damour

2024

Recycling

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This article investigates the hygrothermal properties of earth-based materials by analyzing experimental data from 88 articles spanning 32 countries worldwide. The focus is determining effective techniques for leveraging the use of excavated soil in construction, particularly emphasizing enhancement of hygrothermal comfort in specific climates. Based on statistical analysis, the study presents a comprehensive classification of earth production techniques, incorporating additives, and examines their impacts on hygrothermal properties of excavated soils. Additionally, it explores the intricate relationship between the climatic conditions of a region and the chosen earth-material production techniques. The analysis aims to propose standard parameters for earthen materials and identify gaps in both methods and experimental studies. Therefore, this study will provide valuable insights by proposing new design tools (ternary diagrams) to maximize the use of excavated soils in construction practices. The proposed diagrams illustrate the intricate relation linking either hygrothermal properties, the climate zone, and manufacturing techniques, or the relation between the most studied manufacturing techniques (compaction, fibered, and stabilization) and expected dry thermal conductivity. Thereby, results from this meta-analysis and critical review will contribute to advancing sustainable construction practices.

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Section: Comprehensive Analysis Of Studies Investigating the Hygrothe...mentioning

confidence: 99%

Hygrothermal Optimization for Excavated Soil Reuse in Various Climate Buildings: A Global Literature Meta-Analysis

Fogue Djombou,

Gorra,

Malet-Damour

2024

Recycling

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“…Several studies have been conducted to investigate the drying of building materials and the influence of some of the aforementioned parameters on the process. At the wall scale, a study of the drying kinetics of a prototype building constructed with a double-wall system (cob on the interior side and light earth on the exterior side) was conducted [23]. It has been shown that the drying rate of the cob layers on the south and west walls was higher than that of the north wall and that the drying of the light earth layers reaches equilibrium faster than the cob layers because they are more exposed to environmental conditions and because of their lower initial moisture content.…”

Section: Introductionmentioning

confidence: 99%

An innovative forced convection method for drying geosourced and biosourced construction materials at wall scale

Hamieh,

Collet,

Meslem

2023

J. Phys.: Conf. Ser.

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As global temperatures continue to rise, climate change impacts are now being observed in all aspects of life, driving the need to transition to a low-carbon economy. In the building sector and as a construction material, Earth-Hemp composites present a sustainable solution due to their low embodied energy and low environmental impact. However, at the construction site, and as with any other material, the drying process of Earth-Hemp can be very slow, which can lead to costly delays for building work and even serious problems in term of mold growth affecting their durability. The objective of this work is to develop an innovative drying method to reduce drying time of construction materials and speed up the completion of a project. In this paper, a comparative study of natural convection drying with innovative forced convection drying is carried out on sprayed Earth-Hemp-Lime "ELH" prototypes. The results show that the innovative forced convection method is very effective for drying ELH materials at an accelerated rate, where the drying period has been reduced by a factor of 2, compared to the drying time required when using the natural convection method.

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Impact of Rendering on Drying Stage of Light Earth Walls

El Assaad,

Colinart,

Lecompte

2024

RILEM Bookseries

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Monitoring of drying kinetics evolution and hygrothermal properties of new earth-based materials using climatic chamber simulation

Cited by 4 publications

References 38 publications

Hygrothermal Optimization for Excavated Soil Reuse in Various Climate Buildings: A Global Literature Meta-Analysis

Hygrothermal Optimization for Excavated Soil Reuse in Various Climate Buildings: A Global Literature Meta-Analysis

An innovative forced convection method for drying geosourced and biosourced construction materials at wall scale

Impact of Rendering on Drying Stage of Light Earth Walls

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