| Issue |
MATEC Web Conf.
Volume 409, 2025
Concrete Solutions 2025 – 9th International Conference on Concrete Repair, Durability & Technology
|
|
|---|---|---|
| Article Number | 07003 | |
| Number of page(s) | 7 | |
| Section | Concrete and Admixture Technology 2 | |
| DOI | https://doi.org/10.1051/matecconf/202540907003 | |
| Published online | 13 June 2025 | |
The use of oxidized lignin as a bio-based plasticizer for mortar and concrete
1 The Dow Chemical Company, Midland – Michigan Operations/1702, United States
2 Dow Deutschland Anlagengesellschaft mbH August-Wolff-Straße 1329699 Walsrode, German
3 Business Development, Metsä Fibre Oy, P. O. BOX 30, FI-02020 Metsä, Finland
* Corresponding author: mdemello@dow.com
Plasticizers are widely utilized in construction to enhance material performance by improving cement particle dispersion through adsorption and stabilization. This modification alters concrete’s rheological properties, enhancing flowability and reducing water demand, resulting in a final product with superior strength and durability. The growing demand for sustainable solutions in the plasticizer market presents an opportunity for developing new chemistries. Oxidized lignin, a biobased material synthesized under alkali-O2 conditions, has demonstrated promising plasticizing properties in concrete. This study benchmarks oxidized lignin against conventional plasticizers, evaluating their performance in fresh and hardened mortar, including workability, setting time, density, and compressive strength. Additionally, the tunability of oxidized lignin is explored concerning end-use properties. The environmental benefits of using a biobased plasticizer are also considered, highlighting its potential to reduce the carbon footprint of concrete production. Future research directions include optimizing the synthesis process to enhance performance further.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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