Hygrothermal Characterization of Compressed  and Cement Stabilized Earth Blocks

Miloudi, Yassine; Fezzioui, Naima; Labbaci, Boudjemaa; Benidir, Adel; Roulet, Claude-Alain; Ouméziane, Yacine Aït

doi:10.15866/irece.v10i4.15975

Cited by 2 publications

(10 citation statements)

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“…These statistical parameters are defined as follows (all coefficient parameters depicted in Equations ( 5)- (7) are explained in detail in Refs. [13,15]).…”

Section: Appropriate Models 241 Sorption Isothermsmentioning

confidence: 99%

“…The hysteresis phenomenon can be described using three mathematical models, including the Huang 2005 based on the model Kool & Parker 1987 [44], the Physical model Carmeliet 2005 [45] based on the model Mualem 1974 [46], and the Empirical model Pedersen 1990 [15,47,48]. The three models are described in Table 5.…”

Section: Hysteresis Phenomenonmentioning

confidence: 99%

“…It is based on the EN ISO 12571 standard [13] and is most commonly used for sorption isotherms. It consists of placing the samples examined in desiccators or jars containing saturated saline solutions to maintain desired humidity at controlled temperatures [14,15]. This method aims at calculating the product ′ s water capacity at a hygroscopic equilibrium.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies of the sorption isotherms of building products have discussed the desorption and adsorption curves at constant temperatures [16][17][18][19]. However, others were focused on the effect of temperature on the evolution of equilibrium water content of hygroscopic materials [11,15,20]. Sorption isotherms describe only adsorption and desorption from dry or saturated products.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the Sorption Isotherms and Hysteresis of a Round Perforated Brick Using Newly Developed Models

Ferrak,

Suleiman,

Kadja

et al. 2023

Buildings

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This article deals with the hygrothermal behavior of round perforated brick including hysteresis effects. It aims at examining the effect of temperature on sorption isotherms and hysteresis of this product, reducing the energy consumption of the buildings, reinforcing the constructional economy and the inhabitant’s comfort as well as offering a hygrothermal description of this product that has never been previously investigated. To achieve this, we have carried out an experimental study to determine the sorption isotherms and the hysteresis in five different temperatures (10, 23, 30, 40, and 50 °C). Twelve equations have been tested against the experimental isotherms in order to find the optimal one. After that, three models were tested in order to develop a personal model; the latter explains the real effect of the hysteresis phenomenon on hygrothermal behavior of the studied product. To validate the mathematical model, two methods were applied to calculate the isosteric heat. The obtained results revealed a significant influence of the increase in temperature on the hygrothermal behavior in which a decrease in the equivalent water content was found. Moreover, the developed experimental model is based on Oswin’s model describing the dependence of temperature on the sorption characteristics of round perforated bricks. Furthermore, the Huang model was found to be the best compared with the other models with a regression factor (R2) of 0.990. The validation of the results using the isosteric heat parameter has confirmed that the suggested models demonstrated a perfect presentation of the sorption isotherms and the hysteresis phenomenon of the round perforated brick.

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“…These statistical parameters are defined as follows (all coefficient parameters depicted in Equations ( 5)- (7) are explained in detail in Refs. [13,15]).…”

Section: Appropriate Models 241 Sorption Isothermsmentioning

confidence: 99%

Section: Hysteresis Phenomenonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigating the Sorption Isotherms and Hysteresis of a Round Perforated Brick Using Newly Developed Models

Ferrak,

Suleiman,

Kadja

et al. 2023

Buildings

View full text Add to dashboard Cite

show abstract

“…Como sustento de esta afirmación, el marco actual de investigación del BT se ha centrado en estudios sobre sus propiedades mecánicas (Gandia, Gomes, Corrêa, Rodrigues y Mendes, 2019;Mahmood, Habeeb y Al-Jumaili, 2019), térmicas (Mosquera, Canas, Cid-Falceto y Marcos, 2014;Molar-Orozco, Velázquez-Lozano y Vázquez-Jimánez, 2020;Miloudi et al, 2019;Wati, Bidoung, Damfeu, y Meukam, 2020) y de durabilidad (Fernandes, Peixoto, Mateus y Gervásio, 2019; Lavie Arsène, Frédéric y Nathalie, 2020; Jové Sandoval, Muñoz de la Calle y Pahíno Rodríguez, 2011). Otros avalan la utilización del BT argumentando aspectos económicos, baja toxicidad e, incluso, como producto que favorece la calidad del aire interior (Fernandes et al, 2019).…”

Section: Introductionunclassified

Evaluación del bloque de tierra mediante un Estudio De Viabilidad Constructiva (EVC)

Romero-Girón

Canivell

Rodríguez-García

et al. 2020

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Although earth block construction (EB) is supported by numerous scientific works, there is a lack of confidence in its constructive viability, aggravated by the lack of specific technical training. In view of this uncertainty, which is widespread in Spain, it is necessary to provide well-founded technical responses. This article, considering these aspects, presents the design and validation of a tool to assess the constructive viability of EB. For this purpose, 29 case studies are chosen in Spain, which establish the constructive use determinations and indicators to assess a degree of technical suitability. This parameter, as a result of the proposed tool, acts as a support for decision-making, the improvement of the design and, the efficiency of the solutions that use EB. It concludes by validating the tool, demonstrating its reliability and adaptability to any situation. Finally, the case analysis shows how the quality of the product combined with adverse external conditions, even with correct construction designs, defines a common situation where the degree of suitability of the solution is reduced. Therefore, it is also necessary to demand products with guarantees and prescriptions that ensure and offer sufficient technical safety.

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Hygrothermal Characterization of Compressed and Cement Stabilized Earth Blocks

Cited by 2 publications

References 0 publications

Investigating the Sorption Isotherms and Hysteresis of a Round Perforated Brick Using Newly Developed Models

Investigating the Sorption Isotherms and Hysteresis of a Round Perforated Brick Using Newly Developed Models

Evaluación del bloque de tierra mediante un Estudio De Viabilidad Constructiva (EVC)

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