Title:
Application of Cellulose Nanomaterials in 3D Printed Low/Zero Clinker Cementitious Systems
Author(s):
Mehdi Khanzadeh Moradllo
Publication:
Web Session
Volume:
ws_F25_MehdiKhanzadehMoradilo.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/26/2025
Abstract:
Carbon dioxide (CO2) sequestration using mineral carbonation has been considered as one of the sustainable approaches for addressing the sustainability challenge of cement and concrete production. This study aims at developing 3D printable carbonatable cementitious materials. This is crucial considering the increased attention to implementing concrete 3D in building industry. The fresh and hardened properties and microstructure of the developed mixtures were examined. The benefits of using cellulose nanomaterials were also investigated. A decrease in extrusion pressure was noticed for carbonatable cementitious systems compared to OPC mixtures which can be attributed to the higher “liquid/binder” demand in 3D printable carbonatable systems. The addition of cellulose nanocrystals (CNCs) reduced the extrusion pressure in carbonatable cementitious systems indicating that CNCs can perform as a viscosity-modifying additive in these mixtures. After 14 days of carbonation curing, carbonatable mixtures with CNC show comparable or greater flexural performance compared to the wet-cured OPC system.