Feasibility study of developing cementless blended materials as 3D printable materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00369380" target="_blank" >RIV/68407700:21110/23:00369380 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.cscm.2023.e02675" target="_blank" >https://doi.org/10.1016/j.cscm.2023.e02675</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cscm.2023.e02675" target="_blank" >10.1016/j.cscm.2023.e02675</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Feasibility study of developing cementless blended materials as 3D printable materials

Popis výsledku v původním jazyce

n recent years, 3D printing of structural components and elements has become a popular method of construction automation. The key to the development of 3D printing was its diversity of printing spraying materials, which offered fast construction, material savings, and stable quality. A cementless blended material was made from three industrial by-products (fly ash, ultra-fine fly ash and ground-granulated blast furnace slag) without adding an alkaline activator. Various tests were conducted to compile the results, including viscosity, setting time, spray, and flow tests. The test results showed that viscoelastic solid pastes with viscosities of more than 6000 cP could be used as spraying materials for 3D printers. 3D printing can be accomplished with a ternary cementless blend consisting of 10% ground-granulated blast furnace slag, 40% ultra-fine fly ash and 50% fly ash at a water to cementitious ratio of 0.25. Furthermore, the printer's spray flow rate should be set at 40% to achieve the best aesthetic integrity. The compressive strength test verified that the 3D printed specimens had similar compressive strengths to conventional molded specimens and it confirmed that the source of strength of cementless materials was C-A-S-H colloids. According to the study, the cementless blended material developed can be used in 3D printing as a spraying material and is consistent with promoting high-value industrial by-product technology.

Název v anglickém jazyce

Feasibility study of developing cementless blended materials as 3D printable materials

Popis výsledku anglicky

n recent years, 3D printing of structural components and elements has become a popular method of construction automation. The key to the development of 3D printing was its diversity of printing spraying materials, which offered fast construction, material savings, and stable quality. A cementless blended material was made from three industrial by-products (fly ash, ultra-fine fly ash and ground-granulated blast furnace slag) without adding an alkaline activator. Various tests were conducted to compile the results, including viscosity, setting time, spray, and flow tests. The test results showed that viscoelastic solid pastes with viscosities of more than 6000 cP could be used as spraying materials for 3D printers. 3D printing can be accomplished with a ternary cementless blend consisting of 10% ground-granulated blast furnace slag, 40% ultra-fine fly ash and 50% fly ash at a water to cementitious ratio of 0.25. Furthermore, the printer's spray flow rate should be set at 40% to achieve the best aesthetic integrity. The compressive strength test verified that the 3D printed specimens had similar compressive strengths to conventional molded specimens and it confirmed that the source of strength of cementless materials was C-A-S-H colloids. According to the study, the cementless blended material developed can be used in 3D printing as a spraying material and is consistent with promoting high-value industrial by-product technology.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GC22-00987J" target="_blank" >GC22-00987J: Multifunkční necementové kompozity se sníženým dopadem na životní prostředí pro speciální stavební aplikace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Case Studies in Construction Materials

ISSN

2214-5095

e-ISSN

2214-5095

Svazek periodika

19

Číslo periodika v rámci svazku

e02675

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

18

Strana od-do

—

Kód UT WoS článku

001112451700001

EID výsledku v databázi Scopus

2-s2.0-85177047998