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Early quality control of stabilised dredged material by correlating heat production with strength

Gholampoor, Mohammadhossein LU ; Wadsö, Lars LU ; Lindh, Per LU and Johansson, Peter LU (2024) In Ground Improvement
Abstract
This study explores the use of isothermal calorimetry to assess heat release during the initial phases of dredged sediment stabilization with the primary goal of predicting the 28 days unconfined compressive strength (UCS) and enhancing the stabilization process' quality control (QC). The study was performed on dredged sediment (DS) samples collected from Göta river, Gothenburg, Sweden. The water content of the raw DS was set to 138%, 185%, and 291%, and mixing was performed with water-binder ratios 4, 5, 6, 7, and 8 using a binder consisting of 40% Portland limestone cement and 60% slag. The heat release measurements were conducted during the first seven days of hydration, non-destructive free-free resonance tests (FFR) were performed at... (More)
This study explores the use of isothermal calorimetry to assess heat release during the initial phases of dredged sediment stabilization with the primary goal of predicting the 28 days unconfined compressive strength (UCS) and enhancing the stabilization process' quality control (QC). The study was performed on dredged sediment (DS) samples collected from Göta river, Gothenburg, Sweden. The water content of the raw DS was set to 138%, 185%, and 291%, and mixing was performed with water-binder ratios 4, 5, 6, 7, and 8 using a binder consisting of 40% Portland limestone cement and 60% slag. The heat release measurements were conducted during the first seven days of hydration, non-destructive free-free resonance tests (FFR) were performed at 7, 14, and 28 days of hydration, and the 28 days UCS was done to assess the compressive strength of stabilized DS. For each water content, a statistical analysis was performed to determine the strength of the relationship, specifically using linear regression to assess how well early calorimetric data could predict the UCS and a correlation was found between the 28 days compressive strength and heat release of stabilized DS after a 48 h of hydration. By measuring water content and heat release in the early stages of stabilization, it is thus possible to assess the binder content and predict the ultimate compressive strength of a treated dredged sediment. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
epub
subject
in
Ground Improvement
publisher
ICE Publishing
external identifiers
  • scopus:85213285909
ISSN
1755-0750
DOI
10.1680/jgrim.24.00040
language
English
LU publication?
yes
id
88a19be7-ea13-4e12-b55a-d5f1a5e2f1db
date added to LUP
2025-01-29 08:24:06
date last changed
2025-04-04 15:07:40
@article{88a19be7-ea13-4e12-b55a-d5f1a5e2f1db,
  abstract     = {{This study explores the use of isothermal calorimetry to assess heat release during the initial phases of dredged sediment stabilization with the primary goal of predicting the 28 days unconfined compressive strength (UCS) and enhancing the stabilization process' quality control (QC). The study was performed on dredged sediment (DS) samples collected from Göta river, Gothenburg, Sweden. The water content of the raw DS was set to 138%, 185%, and 291%, and mixing was performed with water-binder ratios 4, 5, 6, 7, and 8 using a binder consisting of 40% Portland limestone cement and 60% slag. The heat release measurements were conducted during the first seven days of hydration, non-destructive free-free resonance tests (FFR) were performed at 7, 14, and 28 days of hydration, and the 28 days UCS was done to assess the compressive strength of stabilized DS. For each water content, a statistical analysis was performed to determine the strength of the relationship, specifically using linear regression to assess how well early calorimetric data could predict the UCS and a correlation was found between the 28 days compressive strength and heat release of stabilized DS after a 48 h of hydration. By measuring water content and heat release in the early stages of stabilization, it is thus possible to assess the binder content and predict the ultimate compressive strength of a treated dredged sediment.}},
  author       = {{Gholampoor, Mohammadhossein and Wadsö, Lars and Lindh, Per and Johansson, Peter}},
  issn         = {{1755-0750}},
  language     = {{eng}},
  month        = {{12}},
  publisher    = {{ICE Publishing}},
  series       = {{Ground Improvement}},
  title        = {{Early quality control of stabilised dredged material by correlating heat production with strength}},
  url          = {{http://dx.doi.org/10.1680/jgrim.24.00040}},
  doi          = {{10.1680/jgrim.24.00040}},
  year         = {{2024}},
}