Abstract
The demand for lightweight aggregate concrete is continuously increasing due to its advantage of reducing the building"s weight. Therefore, stable supply and standard quality of lightweight aggregate are necessary. This study examined the applicability of a lightweight aggregate in concrete making by manufacturing a lightweight and high-strength lattice structure out of it by 3D printing. Later, the density and compressive strength of the concretes made of natural crushed, artificial lightweight, bottom ash lightweight, and 3D printed lattice structure lightweight aggregates were measured. This measurement showed that the 3D printed lattice structure lightweight aggregate concrete exhibited a density of 1.7 t/m³ and compressive strength of 46.7 MPa. On the other hand, the natural crushed aggregate concrete had a density of 2.2 t/m³ and compressive strength of 45.9 MPa. Likewise, the density of the concrete decreased by 21.7 % for the same compressive strength while using a 3D printed lattice structure lightweight aggregate instead of the natural crushed aggregate. Therefore, the 3D printed lattice structure lightweight aggregate can be used to make lightweight concrete. The mass production and economic feasibility of the 3D printed lattice structure lightweight aggregate will be studied in the future.
| Translated title of the contribution | Compressive Strength of Lightweight Concrete Using 3D Printed Lattice Lightweight Aggregate |
|---|---|
| Original language | Korean |
| Pages (from-to) | 10-16 |
| Number of pages | 7 |
| Journal | 한국산학기술학회논문지 |
| Volume | 23 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2022 |