Effectiveness of carbonated lime as a raw material in producing a CO2-stored cementitious material by the hydrothermal method

Byung Wan Jo, Sumit Chakraborty, Jun Ho Jo, Yun Sung Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Abstract With the aim to produce an alternative cementitious material releasing less extent of CO2, utilization of calcium carbonate in the hydrothermal synthesis of a cementitious material would be a unique approach. The present investigation deals with the hydrothermal synthesis of a cementitious material utilizing carbonated lime infused with silica fume and hydrated alumina. Additionally, the effect of synthesized material in controlling the performances of the mortar samples was studied. In this study, mortar samples were fabricated using variable amounts of fine aggregate, alkali-activator, and water. Based on the physical and chemical properties in conjunction with SEM, EDS and setting time analyses of the synthesized material, it is perceived that the hydrothermal method successfully produces a CO2-stored cementitious material. Moreover, analyzing the mechanical strength, it is assessed that the mortar prepared using synthesized cementitious material can achieve ∼34 MPa compressive strength. Finally, a plausible mechanism has been proposed to explain the overall performances of the CO2-stored cementitious material.

Original languageEnglish
Article number6877
Pages (from-to)556-565
Number of pages10
JournalConstruction and Building Materials
Volume95
DOIs
StatePublished - 2015 Jul 27

Fingerprint

Lime
Raw materials
Mortar
Hydrothermal synthesis
Aluminum Hydroxide
Hydrated alumina
Silica fume
lime
Calcium Carbonate
Alkalies
Calcium carbonate
Chemical properties
Compressive strength
Strength of materials
Energy dispersive spectroscopy
Physical properties
Scanning electron microscopy
Water

Keywords

  • Alternative cementitious material
  • CO emission
  • Carbonated lime
  • Hydrothermal synthesis
  • Physical and mechanical properties

Cite this

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abstract = "Abstract With the aim to produce an alternative cementitious material releasing less extent of CO2, utilization of calcium carbonate in the hydrothermal synthesis of a cementitious material would be a unique approach. The present investigation deals with the hydrothermal synthesis of a cementitious material utilizing carbonated lime infused with silica fume and hydrated alumina. Additionally, the effect of synthesized material in controlling the performances of the mortar samples was studied. In this study, mortar samples were fabricated using variable amounts of fine aggregate, alkali-activator, and water. Based on the physical and chemical properties in conjunction with SEM, EDS and setting time analyses of the synthesized material, it is perceived that the hydrothermal method successfully produces a CO2-stored cementitious material. Moreover, analyzing the mechanical strength, it is assessed that the mortar prepared using synthesized cementitious material can achieve ∼34 MPa compressive strength. Finally, a plausible mechanism has been proposed to explain the overall performances of the CO2-stored cementitious material.",
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Effectiveness of carbonated lime as a raw material in producing a CO2-stored cementitious material by the hydrothermal method. / Jo, Byung Wan; Chakraborty, Sumit; Jo, Jun Ho; Lee, Yun Sung.

In: Construction and Building Materials, Vol. 95, 6877, 27.07.2015, p. 556-565.

Research output: Contribution to journalArticle

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T1 - Effectiveness of carbonated lime as a raw material in producing a CO2-stored cementitious material by the hydrothermal method

AU - Jo, Byung Wan

AU - Chakraborty, Sumit

AU - Jo, Jun Ho

AU - Lee, Yun Sung

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Y1 - 2015/7/27

N2 - Abstract With the aim to produce an alternative cementitious material releasing less extent of CO2, utilization of calcium carbonate in the hydrothermal synthesis of a cementitious material would be a unique approach. The present investigation deals with the hydrothermal synthesis of a cementitious material utilizing carbonated lime infused with silica fume and hydrated alumina. Additionally, the effect of synthesized material in controlling the performances of the mortar samples was studied. In this study, mortar samples were fabricated using variable amounts of fine aggregate, alkali-activator, and water. Based on the physical and chemical properties in conjunction with SEM, EDS and setting time analyses of the synthesized material, it is perceived that the hydrothermal method successfully produces a CO2-stored cementitious material. Moreover, analyzing the mechanical strength, it is assessed that the mortar prepared using synthesized cementitious material can achieve ∼34 MPa compressive strength. Finally, a plausible mechanism has been proposed to explain the overall performances of the CO2-stored cementitious material.

AB - Abstract With the aim to produce an alternative cementitious material releasing less extent of CO2, utilization of calcium carbonate in the hydrothermal synthesis of a cementitious material would be a unique approach. The present investigation deals with the hydrothermal synthesis of a cementitious material utilizing carbonated lime infused with silica fume and hydrated alumina. Additionally, the effect of synthesized material in controlling the performances of the mortar samples was studied. In this study, mortar samples were fabricated using variable amounts of fine aggregate, alkali-activator, and water. Based on the physical and chemical properties in conjunction with SEM, EDS and setting time analyses of the synthesized material, it is perceived that the hydrothermal method successfully produces a CO2-stored cementitious material. Moreover, analyzing the mechanical strength, it is assessed that the mortar prepared using synthesized cementitious material can achieve ∼34 MPa compressive strength. Finally, a plausible mechanism has been proposed to explain the overall performances of the CO2-stored cementitious material.

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