Title:
Towards Sustainable Robotic Construction: Concrete 3D Printing with Quarry By-products and Low Portland Cement Content
Author(s):
Paul
Publication:
Web Session
Volume:
ws_S24_Aumit Paul.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
3/23/2024
Abstract:
The objective of this ongoing study is to provide solutions for more sustainable and cost-effective construction 3D printing (C3DP). There have been significant advancements in C3DP in recent years. However, one major challenge is the high Portland cement content (800 kg/m^3 and higher) commonly used in printing materials, increasing the cost and carbon footprint of 3D printed structures. This study investigates multiple techniques to formulate printable structural materials with low Portland cement content (400 kg/m^3 or lower). To this aim, the “particle packing” technique and integration of large aggregates (3/8”) and quarry by-products are investigated to produce more sustainable printing materials that satisfy printability and structural requirements. The preliminary results demonstrate the effectiveness of the proposed techniques for achieving more higher levels of sustainability. The findings of this study pave the way toward a more sustainable and practical construction method that reduces construction cost, time, and carbon footprint.