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Cited by 88Geotechnical Engineering and Soil StabilizationConcrete and Cement Materials ResearchRecycling and utilization of industrial and municipal waste in materials production

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Utilization of lime/carbide slag-activated ground granulated blast-furnace slag for dredged sludge stabilization

Lang, Lei, Chen, Bing, Li, Nan·2021·Marine Georesources & Geotechnology
DOI 10.1080/1064119x.2020.1741050
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Abstract

This study investigated the feasibility of using lime (L) and carbide slag (CS) to activate ground granulated blast-furnace slag (GGBS), as a potential substitute to Portland cement (PC) for stabilizing dredged sludge (DS). A series of unconfined compressive strength (UCS), scanning electron microscopy (SEM) and X-ray diffraction (XRD) tests were performed to evaluate the strength development and micro-mechanisms of stabilized DS. The results showed that the optimum lime content was 20-25% for L-GGBS stabilized DS, which can achieve the highest UCS. The 28-, 60- and 90-day optimum UCS of stabilized DS with 20% L-GGBS were 1.38, 1.14 and 1.06 times that of 15% PC stabilized DS. Similarly, the optimum CS content of 25-30% was recommended for achieving the highest UCS of CS-GGBS stabilized DS. The 28-, 60- and 90-day optimum UCS of 20% CS-GGBS stabilized DS were 1.45, 1.12 and 1.02 times that of 15% PC stabilized DS. It was suggested using 20% L-GGBS or CS-GGBS instead of 15% PC for stabilizing DS. The SEM and XRD results revealed that the CSH and CAH gels were the main hydration products for stabilized DS, and the ettringite was also obviously detected in CS-GGBS stabilized DS.

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Metadata

Authors
Lang, L., Chen, B., & Li, N.
Affiliations
  • Shanghai Jiao Tong University (CN)
  • China State Construction Engineering (China) (CN)
Corresponding author
Chen, Bing
ORCID
Venue
Marine Georesources & Geotechnology
Publisher
Informa UK Limited
Published
2020-03-23
Volume
39
Issue
6
Pages
659-669
ISSN
  • 1064-119X (ISSN-L)
  • 1521-0618
DOI
10.1080/1064119x.2020.1741050
OpenAlex
W3012683945
Cited by
88
References
40
Citations by year
2026: 13 · 2025: 15 · 2024: 12 · 2023: 13 · 2022: 21 · 2021: 12 · 2020: 2
FWCI
6.84
Type
journal article
Language
en
Open access
closed
Locations
Marine Georesources and Geotechnology (publishedVersion)
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Geotechnical Engineering and Soil Stabilization
  • Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
  • Physical Sciences › Engineering › Building and Construction › Recycling and utilization of industrial and municipal waste in materials production
Keywords
ground granulated blast furnace slag, lime activation, cement replacement, unconfined compressive strength, calcium silicate hydrate, calcium aluminate hydrate, ettringite

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CoChat. (2026). Citation check: Utilization of lime/carbide slag-activated ground granulated blast-furnace slag for dredged sludge stabilization. https://app.cochat.ai/papers/10.1080/1064119x.2020.1741050
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Lang, L., Chen, B., & Li, N. (2021). Utilization of lime/carbide slag-activated ground granulated blast-furnace slag for dredged sludge stabilization. Marine Georesources & Geotechnology. https://doi.org/10.1080/1064119x.2020.1741050