Dissertation/Thesis
Προβολή σε EDS

Study on the Effect of Foam Stability on the Properties of Foamed Lightweight Soils

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Study on the Effect of Foam Stability on the Properties of Foamed Lightweight Soils
Συγγραφείς: Hao Liu, Cong Shen, Jixin Li, Gaoke Zhang, Yongsheng Wang, Huiwen Wan
Πηγή: Materials ; Volume 16 ; Issue 18 ; Pages: 6225
Στοιχεία εκδότη: Multidisciplinary Digital Publishing Institute
Έτος έκδοσης: 2023
Συλλογή: MDPI Open Access Publishing
Θεματικοί όροι: foamed lightweight soils, foam stability, pore structure
Περιγραφή: The properties of prepared foamed lightweight soils (FLSs) using prefabricated foam requires high foam stability. This paper investigates the geometrical characteristics of different foam densities, different types of foaming agents in the air, and the presence of slurry. Then, it studies their effects on the pore structure and mechanical properties of FLS. Results show that with the increase in foam density the bleeding rate of foam in the air for 1 h increases and the foam with a foam density of 50 kg/m3 is the most stable in the air. The stability of foam in slurry is not directly related to the property of foam in the air. The FLS prepared with the same foaming agent had the best performance with the FLS designed with a foam density of 50 kg/m3, which had the smallest average pore size and the most minor pore size distribution, and had the highest compressive strength. Among the three different foaming agents, Type-S was the best, and the slurry had the lowest rate of increase in wet density after the defoaming test, indicating that the foam had the best stability in the cement slurry. The FLS prepared with the density of 50 kg/m3 using the Type-S foaming agent and mixed with the slurry of cement, fly ash:slag:water = 105:105:140:227.5, was hardened to a mean pore size of 299 μm, and the 7 days, 28 days, and 56 days compressive strengths were 0.92 MPa, 2.04 MPa, and 2.48 MPa, respectively, which had the smallest average pore size and the highest compressive strength among the FLSs prepared using the three foaming agents.
Τύπος εγγράφου: Thesis
Περιγραφή αρχείου: application/pdf
Γλώσσα: English
Relation: Construction and Building Materials; https://dx.doi.org/10.3390/ma16186225
DOI: 10.3390/ma16186225
Διαθεσιμότητα: https://doi.org/10.3390/ma16186225
Rights: https://creativecommons.org/licenses/by/4.0/
Αριθμός Καταχώρησης: edsbas.B2D4DE2B
Βάση Δεδομένων: BASE
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  – Url: https://doi.org/10.3390/ma16186225#
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IllustrationInfo
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  Label: Title
  Group: Ti
  Data: Study on the Effect of Foam Stability on the Properties of Foamed Lightweight Soils
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Hao+Liu%22">Hao Liu</searchLink><br /><searchLink fieldCode="AR" term="%22Cong+Shen%22">Cong Shen</searchLink><br /><searchLink fieldCode="AR" term="%22Jixin+Li%22">Jixin Li</searchLink><br /><searchLink fieldCode="AR" term="%22Gaoke+Zhang%22">Gaoke Zhang</searchLink><br /><searchLink fieldCode="AR" term="%22Yongsheng+Wang%22">Yongsheng Wang</searchLink><br /><searchLink fieldCode="AR" term="%22Huiwen+Wan%22">Huiwen Wan</searchLink>
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  Label: Source
  Group: Src
  Data: Materials ; Volume 16 ; Issue 18 ; Pages: 6225
– Name: Publisher
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  Data: Multidisciplinary Digital Publishing Institute
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  Label: Publication Year
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  Data: 2023
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  Data: MDPI Open Access Publishing
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  Data: <searchLink fieldCode="DE" term="%22foamed+lightweight+soils%22">foamed lightweight soils</searchLink><br /><searchLink fieldCode="DE" term="%22foam+stability%22">foam stability</searchLink><br /><searchLink fieldCode="DE" term="%22pore+structure%22">pore structure</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: The properties of prepared foamed lightweight soils (FLSs) using prefabricated foam requires high foam stability. This paper investigates the geometrical characteristics of different foam densities, different types of foaming agents in the air, and the presence of slurry. Then, it studies their effects on the pore structure and mechanical properties of FLS. Results show that with the increase in foam density the bleeding rate of foam in the air for 1 h increases and the foam with a foam density of 50 kg/m3 is the most stable in the air. The stability of foam in slurry is not directly related to the property of foam in the air. The FLS prepared with the same foaming agent had the best performance with the FLS designed with a foam density of 50 kg/m3, which had the smallest average pore size and the most minor pore size distribution, and had the highest compressive strength. Among the three different foaming agents, Type-S was the best, and the slurry had the lowest rate of increase in wet density after the defoaming test, indicating that the foam had the best stability in the cement slurry. The FLS prepared with the density of 50 kg/m3 using the Type-S foaming agent and mixed with the slurry of cement, fly ash:slag:water = 105:105:140:227.5, was hardened to a mean pore size of 299 μm, and the 7 days, 28 days, and 56 days compressive strengths were 0.92 MPa, 2.04 MPa, and 2.48 MPa, respectively, which had the smallest average pore size and the highest compressive strength among the FLSs prepared using the three foaming agents.
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  Data: Construction and Building Materials; https://dx.doi.org/10.3390/ma16186225
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  Data: 10.3390/ma16186225
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  Data: https://doi.org/10.3390/ma16186225
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  Data: https://creativecommons.org/licenses/by/4.0/
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        Value: 10.3390/ma16186225
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      – Text: English
    Subjects:
      – SubjectFull: foamed lightweight soils
        Type: general
      – SubjectFull: foam stability
        Type: general
      – SubjectFull: pore structure
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      – TitleFull: Study on the Effect of Foam Stability on the Properties of Foamed Lightweight Soils
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            NameFull: Hao Liu
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            NameFull: Cong Shen
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            NameFull: Jixin Li
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            NameFull: Huiwen Wan
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              Y: 2023
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            – TitleFull: Materials ; Volume 16 ; Issue 18 ; Pages: 6225
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