Effect of Cement on the Consolidation Characteristics of Organic Soil: A Case Study from Dakatia Beel, Khulna

DOI

10.2991/978-94-6463-884-4_9How to use a DOI?

Keywords

Organic soil; Cement Treatment; Consolidation; Optimum Moisture Content; Soil Improvement

Abstract

Organic soils are known for their high compressibility, low shear strength, and elevated natural moisture content, which create significant challenges for construction, especially in areas like Khulna, Bangladesh. These soil characteristics can lead to excessive settlement and instability, posing considerable risks to infrastructure development. The Khulna metropolitan area, particularly the Dakatia Beel region, has problematic organic soils that require effective ground improvement techniques. This study addresses these challenges by investigating the effect of cement on the consolidation properties of organic soil found on Dakatia Beel in the Khulna Region. Soil samples were mixed with 0%, 10%, 15%, and 20% cement by dry weight and cured for seven days. A series of one-dimensional consolidation tests were conducted on the treated specimens to assess the effects of cement stabilization on key consolidation parameters, including compression index (C_c), swelling index (C_s), coefficient of compressibility (a_v), coefficient of volume compressibility (m_v) and coefficient of consolidation (C_v). The addition of cement improved the soil’s ability to withstand deformation under stress, as seen by lower compression and swelling indices during testing. The coefficient of consolidation increased indicating faster dissipation of an excess pore water pressure and improved settling properties. These findings offer practical strategies for mitigating settlement issues in regions with similar organic soil profiles. Reducing the risks of excessive settlement ensures safer and more durable infrastructure, particularly in areas prone to organic soil challenges.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Arafat Bin Ansar
AU  - M. D. Ibrahim Bhuyia
AU  - Md. Rokonuzzaman
AU  - Sayma Sultana Keya
AU  - Md Ahad Ali Khan
PY  - 2025
DA  - 2025/11/18
TI  - Effect of Cement on the Consolidation Characteristics of Organic Soil: A Case Study from Dakatia Beel, Khulna
BT  - Proceedings of the 8th International Conference on Engineering Research, Innovation, and Education 2025 (ICERIE 2025)
PB  - Atlantis Press
SP  - 69
EP  - 76
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-884-4_9
DO  - 10.2991/978-94-6463-884-4_9
ID  - Ansar2025
ER  -