Fresh properties of a novel 3D printing concrete ink

By Yu Zhang, Yunsheng Zhang, Guojian Liu, Yonggan Yang, Meng Wu, B. Pang. Construction and Building Materials, 2018

359 citations recorded by the source corpus.

Abstract 3D printing technique is an opportunity for the development of architecture industry altered by the emergence of 3D printing concrete ink that shows unconventional characteristics mainly originated from its geometric design. In this paper, a novel 3D printing concrete ink that has good fluidity during movement and satisfying standing behavior at static state due to the structural rebuilding of cement paste advanced by the addition of nano clay (NC) and silica fume (SF) was specially designed to be extruded through a nozzle to print layer-over-layer components for an innovative additive manufacturing process. The buildability, rheological properties (viscosity, yield stress and thixotropy), workability, green strength, open time and hydration heat of the fresh 3D printing concrete were systematically investigated. Results indicated that the buildability of this concrete with a small quantity of NC or SF were increased by 150% and 117%, respectively, and remarkably enhances the thixotropy and green strength. The double-doped NC and SF optimize the buildability.

Subfields: Automotive Engineering, Building and Construction, Earth-Surface Processes

View Paper: https://www.semanticscholar.org/paper/f92f14a36266155d677cf1361eada8847bf4d398

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Automotive Engineering

1. Shaodan Hou
2. Sooraj A.O. Nair
3. Jun Ye
4. Hussam Alghamdi
5. Jianzhuang Xiao
6. Z. Duan
7. N. Neithalath

In Building and Construction

1. Z. Duan
2. Jianzhuang Xiao
3. Shaodan Hou
4. Sooraj A.O. Nair
5. Jun Ye
6. Hussam Alghamdi
7. N. Neithalath
8. Jorge de Brito

In Earth-Surface Processes

1. N. Neithalath

Citations in the corpus

• A review of 3D printed concrete: Performance requirements, testing measurements and mix design (2020, methodology): “…of the conventional workability testing measurements for normal concrete are not regarded as the best testing measurements for 3DPC, some test methods, including slump and slump flow, are utilized with simple operation and low cost after determination of the suitable range for printing [20,97-100].”
• Insights into material design, extrusion rheology, and properties of 3D-printable alkali-activated fly ash-based binders (2019, methodology): “In extrusion-based printing, the rheological characteristics of the mixtures play a crucial role, and thus several studies have explored the influence of paste rheology in 3D printing of cementitious materials [19 – 23].”