Czynniki wpływające oraz metoda prognozowania przepływu wytłaczania betonu do druku 3D

Zhou, Jiehang; Du, Longyu; Wu, Kai; Lai, Jianzhong; Zhao, Xinzhen

doi:10.32047/CWB.2025.30.2.3

Artykuł - szczegóły

Tytuł artykułu

Czynniki wpływające oraz metoda prognozowania przepływu wytłaczania betonu do druku 3D

Autorzy

Zhou Jiehang , Du Longyu , Wu Kai , Lai Jianzhong , Zhao Xinzhen

Wybrane pełne teksty z tego czasopisma

http://www.cementwapnobeton.pl/

Identyfikatory

DOI

10.32047/CWB.2025.30.2.3

Warianty tytułu

Effective factors and a prediction method on extrusion flow of 3D printed concrete

Języki publikacji

PL EN

Abstrakty

Kontrola wymiarów filamentu czyli strugi wytłaczanego materiału w betonie drukowanym 3D stanowi istotne ograniczenie dla szerokiego zastosowania tej technologii. Precyzja druku 3D betonu jest ściśle zależna od stabilności przepływu w czasie ekstruzji. Z tego względu konieczne jest dogłębne zbadanie czynników wpływających na ten przepływ. W niniejszym artykule przedstawiono analizę wpływu płynności mieszanki oraz masy początkowego załadunku w zasobniku materiałowym na charakterystykę przepływu w trakcie ekstruzji. Odkryto i opisano unikalne zjawiska mające wpływ na przepływ podczas procesu druku, które nazwano odpowiednio „kolapsem” oraz „obciążeniem krytycznym”. Zaobserwowano również liniową korelację pomiędzy płynnością mieszanki a przepływem ekstruzyjnym w przeliczeniu na jednostkę masy początkowego załadunku w zasobniku. Na podstawie uzyskanych wyników matematycznych zaproponowano metodę predykcji przepływu ekstruzyjnego. Ponadto, sformułowano zestaw zaleceń opartych na doświadczeniach zgromadzonych w trakcie prowadzonych badań.

The size control of 3D printed concrete filament limits application of 3D printed concrete technology. The accuracy of 3D printed concrete will benefit from stability of extrusion flow. Therefore, it is necessary to study the effective factors on extrusion flow. In this paper, the effects from fluidity and mass of loading in material tank on extrusion flow were discussed. The special phenomenon effective on extrusion flow during the printing process was discovered and named as ‘collapse’ and ‘critical loading’. Meanwhile, the liner relationship between fluidity and extrusion flow per unit mass of initial loading in material tank was observed. A feasible method for extrusion flow prediction was proposed based on mathematical results in this study. And some advices were provided according to the experience from this research.

Słowa kluczowe

beton drukowany płynność przewidywanie przepływu przepływ wytłaczania obciążenie

printed concrete fluidity extrusion flow flow prediction loading

Wydawca

Fundacja Cement, Wapno, Beton

Czasopismo

Cement Wapno Beton

Rocznik

2025

Tom

R. 30, nr 2

Strony

124--143

Opis fizyczny

Bibliogr. 40 poz., il., tab.

Twórcy

autor

Zhou Jiehang

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, China

autor

Du Longyu

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, China

autor

Wu Kai

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, China

autor

Lai Jianzhong

jzh-lai@163.com

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, China

autor

Zhao Xinzhen

School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, China

Bibliografia

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