| Issue |
E3S Web Conf.
Volume 730, 2026
International Conference on Advances and Innovations in Soft Soil Engineering (Soft Soils 2026)
|
|
|---|---|---|
| Article Number | 04003 | |
| Number of page(s) | 7 | |
| Section | Ground Improvement and Low-Carbon Solutions | |
| DOI | https://doi.org/10.1051/e3sconf/202673004003 | |
| Published online | 03 August 2026 | |
Stabilization of high plastic and low plastic soil using Terrazyme®
1 NUST Institute of Civil Engineering, National University of Sciences and Technology, Islamabad, Pakistan.
2 Emarat Construction Company, Islamabad, Pakistan.
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
Clays being expansive in nature poses a great challenge in civil engineering. When encountered with water they undergo volumetric changes; not only damaging the super structure but also experiences a sudden loss in strength leading to ultimate failure. Terrazyme an enzyme has been used to improve the strength properties and reduce swelling of high plastic clayey and low plastic clayey soil obtained from Ballewala, Nandipur, Pakistan. Hight plastic soil was made by mixing low plastic soil with 25 % of bentonite. Terrazyme increased Maximum Dry Density (MDD), California Bearing Ratio (CBR), Unconfined Compressive Strength (UCS) and reduced the swell potential of both clays. For Atterberg limits, Liquid Limit reduced, and Plastic Limit increased for both soils. Addition of Terrazyme produced cations in soil, this decreased Cation Exchange Capacity (CEC) of soils. A significant improvement in CBR and UCS validated the successfulness of Terrazyme as a non-traditional additive for the selected soils.
© The Authors, published by EDP Sciences, 2026
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