[en] Additive manufacturing has found widespread application across various industrial sectors including house construction, which presents significant potential. Nonetheless, the utilization of materials for 3D-printed construction encounters challenges due to their unique properties, particularly their setting time. Hence, a thorough investigation into the rheology of 3D-printed mortar becomes imperative.
The material employed in this process must exhibit a delicate balance, being sufficiently fluid to facilitate smooth transportation through the pump pipe while also possessing the requisite viscosity to support multiple layers. Furthermore, the 3D printed filament must feature a smooth surface and continuity to ensure optimal cohesion between layers. To assess these properties, three key criteria are established: pumpability, extrudability, and buildability.
This study aims to elucidate the methodology for measuring these characteristics. Two distinct testing methods will be employed: simple standard tests for construction materials providing an estimation of rheological characteristics and rheometer tests ensuring precise and reliable measurements. The primary objective lies in identifying a suitable test methodology for assessing the rheological traits of materials on the construction site. Various tests, including the flow table test, fall cone test, V funnel test, and pistol test, will be explored to determine the optimal approach for the 3D printing process. Experimental assessments conducted utilizing the RheoCAD rheometer are indispensable for comprehending material behaviors across diverse testing conditions.
Furthermore, a comparative analysis of the mechanical strength between 3D printed samples and casted samples will be presented. This comparative assessment aims to provide valuable insights into the structural integrity and performance characteristics of 3D-printed constructions relative to conventional casting techniques.
Disciplines :
Civil engineering
Author, co-author :
Ta, Minh Phuong Bao ; Université de Liège - ULiège > Département ArGEnCo > Matériaux de construction non métalliques du génie civil
ABDELOUHAB, Sandra; Belgium Ceramic Research Center
Archambeau, Pierre ; Université de Liège - ULiège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering)
Courard, Luc ; Université de Liège - ULiège > Urban and Environmental Engineering
Language :
English
Title :
MEASUREMENT OF RHEOLOGICAL CHARACTERISTICS FOR 3D PRINTED MORTAR
Publication date :
08 May 2024
Event name :
2024 Young Ceramists Additive Manufacturing forum
Event date :
6 to 8 May 2024
By request :
Yes
Audience :
International
References of the abstract :
Additive manufacturing has found widespread application across various industrial sectors including house construction, which presents significant potential. Nonetheless, the utilization of materials for 3D-printed construction encounters challenges due to their unique properties, particularly their setting time. Hence, a thorough investigation into the rheology of 3D-printed mortar becomes imperative.
The material employed in this process must exhibit a delicate balance, being sufficiently fluid to facilitate smooth transportation through the pump pipe while also possessing the requisite viscosity to support multiple layers. Furthermore, the 3D printed filament must feature a smooth surface and continuity to ensure optimal cohesion between layers. To assess these properties, three key criteria are established: pumpability, extrudability, and buildability.
This study aims to elucidate the methodology for measuring these characteristics. Two distinct testing methods will be employed: simple standard tests for construction materials providing an estimation of rheological characteristics and rheometer tests ensuring precise and reliable measurements. The primary objective lies in identifying a suitable test methodology for assessing the rheological traits of materials on the construction site. Various tests, including the flow table test, fall cone test, V funnel test, and pistol test, will be explored to determine the optimal approach for the 3D printing process. Experimental assessments conducted utilizing the RheoCAD rheometer are indispensable for comprehending material behaviors across diverse testing conditions.
Furthermore, a comparative analysis of the mechanical strength between 3D printed samples and casted samples will be presented. This comparative assessment aims to provide valuable insights into the structural integrity and performance characteristics of 3D-printed constructions relative to conventional casting techniques.
