Thermal Study of Traditional Gypsum Plaster Brick Prototypes: The Case of Ouargla

Chaib, Hachem; Kriker, Abdelouahed

doi:10.2478/sspjce-2022-0019

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Numerous studies have demonstrated the economic viability and feasibility of using various fiber types recovered from waste sources in the manufacturing of reinforced concrete [5,8,12]. High carbon steel strands and wires make up wire ropes, which can deteriorate due to a number of factors, including fatigue-induced inter-wire friction and corrosion [9,17]. Understanding the stress behavior of individual wires is important, but it's also important to include the elevated stress resistance displayed by the insulated wire buried in the cable when estimating the overall behavior of the cable [18].…”

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confidence: 99%

Effects of glass powder and Gypsum (Timchemt) on the thermal and mechanical properties of plaster bricks

Bouzouaid,

Chaib

2024

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The present research aims to study the effect of glass powder extracted from the glass waste disposal area in Ouargla (southern Algeria) on the thermo mechanical properties of plaster bricks. Therefore, density, compressive strength, flexural strength, thermal conductivity, and thermal resistance were measured in the laboratory using mixtures generated through the response surface methodology (RSM). This RSM technique was used to assess the influence of gypsum (95% – 100%) and glass powder (0% – 5%) on the behavior of hardened plaster bricks. The experimental results and RSM evaluation show a significant increase in compressive and flexural strength at the maximum and minimum levels of Timchemt and glass powder, and detailed scanning electron microscopy (SEM) analyses supported the results. Consequently, quadratic mathematical models were developed using the RSM method applied to the obtained results. Analysis of variance (ANOVA) yielded a (P-value <0.05) and correlations exceeding 91% for all the studied parameters. Probability plots showed excellent correlation between predicted and experimental values, and the 2D and 3D contours of the RSM demonstrated that the fitted models work very well and can provide the appropriate relationship between the selected parameters and thermo mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Effects of glass powder and Gypsum (Timchemt) on the thermal and mechanical properties of plaster bricks

Bouzouaid,

Chaib

2024

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Interlocking passive brick set: the design of interlocking building components with connecting air cavities for heat dissipation and as a complement to the Heating, Ventilation, and Air Conditioning (HVAC) system

Phaiboonnukulkij

2024

Bud-Arch

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This dissertation explores the design and implementation of the "Interlocking Passive Brick Set," a building component aimed at enhancing thermal efficiency and optimising the performance of Heating, Ventilation, and Air Conditioning (HVAC) systems. The bricks demonstrate thermal resistance and low thermal transmittance, reflecting their ability to manage heat flow and dissipation effectively. The research focuses on the interaction between the exterior and interior surfaces of the brick set, where the exterior is exposed to a hot environment, and the interior remains cooler. The design incorporates a central air cavity with lower thermal transmittance than solid surfaces. This cavity facilitates a heat dissipation cycle: hotter air rises and is expelled through the top compartment, while cooler air descends, cooling the space. This convective process enhances the overall thermal regulation within the structure. The data explain the discrepancy between predicted and measured thermal performance in interlocking brick systems and how the integrated air cavity addresses these issues. Heat-flux measurements were correlated in a general form to enable designers to account for convection at both the interior and exterior surfaces.

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Improving thermal resistance of multilayer walls with drinn, sheep wool, and palm fibers: a case study in Ouargla, Algeria

Necib,

Mosbah

2024

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The reduction of thermal gains in summer and heat loss in winter is ensured through the enhancement of thermal insulation and the thermal inertia of building envelopes. This study aims to exploit local materials from the Saharan region of Algeria, particularly from the Ouargla region, to construct building envelopes with high thermal resistance and inertia at minimal cost. The objective is to evaluate the current insulation methods in Algeria, which primarily use an air gap between two walls, and compare them with local insulating materials such as palm fibers, Drinn, and sheep wool, specifically for hot and arid regions. An experimental setup was designed, comprising two walls: an outer wall with a thickness of 15 cm and an inner wall with a thickness of 10 cm, with a 5 cm air gap in between, resulting in a total multilayer wall thickness of 30 cm. In this experimental study, palm fibers, Drinn, and sheep wool were inserted into the 5 cm gap between the two walls, replacing the conventional air gap. The results demonstrated an improvement in the thermal resistance of the multilayer wall with Drinn, sheep wool, and palm fibers compared to a conventional multilayer wall with an air gap. This improvement was reflected in the reduction of overall heat flux during the 10-hour experiment. The reductions in heat flux for Drinn, sheep wool, and palm fibers were 54.80%, 54.22%, and 25.99%, respectively. Sheep wool and Drinn provided nearly the same reduction in overall heat flux, but due to the higher cost of sheep wool, Drinn emerges as the best insulating material in terms of the insulation efficiency-to-cost ratio.

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Thermal Study of Traditional Gypsum Plaster Brick Prototypes: The Case of Ouargla

Cited by 3 publications

References 6 publications

Effects of glass powder and Gypsum (Timchemt) on the thermal and mechanical properties of plaster bricks

Effects of glass powder and Gypsum (Timchemt) on the thermal and mechanical properties of plaster bricks

Interlocking passive brick set: the design of interlocking building components with connecting air cavities for heat dissipation and as a complement to the Heating, Ventilation, and Air Conditioning (HVAC) system

Improving thermal resistance of multilayer walls with drinn, sheep wool, and palm fibers: a case study in Ouargla, Algeria

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