Search

This study examines the use of 3D printing technology in construction, specifically the use of local clay as the primary material for developing Terracotta components. The results demonstrate the feasibility and high print quality achievable with clay, establishing it as a viable material for 3D printing in construction. The analysis of physical properties, such as shrinkage, density, and water absorption, provides valuable insights. Thermal conductivity, also examined, contributes to a comprehensive understanding of material performance. The article identifies the optimal extrusion parameters for terracotta components. The evaluations show that the water absorption rates are within standards, and the density variation ranges from 1420 to 1466 kg/m³. Additionally, there is a direct correlation between thermal conductivity and density. The compressive strengths are diverse, ranging from 18 MPa to 33 MPa. While modulus of elasticity provides essential quantitative data for understanding the mechanical behavior of printed samples when subjected to various stresses. The internal structure significantly influences compression resistance in 3D printed bricks, emphasizing its importance in design. This research highlights the potential of 3D printing, specifically with clay, in sustainable construction. It encourages further exploration of its practical applications in the industry. • Successful demonstration of high-quality 3D printing using local clay has been achieved. • Parameters for 3D printing local clay were optimized. • Analysis of material suitability, encompassing density and water absorption, was carried out. • A comprehensive study on the thermal conductivity and compression strength of printed samples was conducted. [ABSTRACT FROM AUTHOR]

• The thermal behavior of a brick-wall impregnating a PCM was modeled and simulated. • Thermal response of the brick with PCM was assessed under summer climatic conditions. • A parametric study was conducted to improve the brick behavior and optimize PCM mass. • The aim was reinforcing the storage capacity and insulation power of this building element. • Integrating PCM in the brick induces better stabilization of the inner surface temperature. In certain Moroccan regions, weather conditions are extreme; the outside ambient temperature varies between 45 °C during the day and 25 °C at night in the estival period. Under such conditions, residential and tertiary buildings, which have lightweight walls, may be vulnerable to internal overheating. Heat waves penetrating the building lead to occupant's discomfort and dissatisfaction. Creating an internal climate, which is independent or slightly dependent on external conditions, can be an appropriate solution to mitigate temperature fluctuations. The adoption of new approaches to improve the thermal inertia of lightweight walls is currently among the most widely accepted techniques in literature. In this study, the integration of phase change material (PCM) in building hollow bricks (widely used in Morocco construction) is proposed to improve the thermal performance of external walls. High latent heat of fusion of PCMs will help to dampen the heat flow through the envelope. Physical modeling and numerical analysis of heat transfer through the hollow bricks containing PCM has been carried out. A parametric study was conducted to evaluate the effect of weather conditions on the thermal response of this building element, also the influence of PCM properties are studied and discussed. It is found that the use of PCM in building bricks stabilizes and reduces the indoor temperature fluctuation. [ABSTRACT FROM AUTHOR]