Estimation of the Environmental Impact for Recycling Blast Furnace Slag with a Hydrothermal Reaction Based on Life Cycle Inventory Data

Tae, Soon-Jae; Adachi, Tsuyoshi; Morita, Kazuki

doi:10.2355/isijinternational.isijint-2016-358

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…During the treatment in a CaO-SiO 2 -H 2 O system, the material strength of hydrothermal solidi ed product was improved (Maeda H et al 2007). Furthermore, researchers have reported that hydrothermal reactions is of great importance in the immobilization of heavy metals (Inoue R and Suito H 2002;Tae SJ et al 2017). As CRT panel glass has a similar chemical composition to the above inorganic wastes.…”

Section: Introductionmentioning

confidence: 99%

Preparation of hydrothermally solidified materials from waste cathode ray tube panel glass for construction applications

Zhang

Xu²,

Wang

et al. 2022

Environ Sci Pollut Res

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Solidi cation of cathode ray tube (CRT) panel glass was carried out using a hydrothermal processing method. In this way, the glass powder was rst compacted in a mold at 20 MPa, and then hydrothermally cured in an autoclave under saturated steam pressure at 200 ℃ for 6 hours. The CRT panel glass was then hydrothermally solidi ed by the formation of tobermorite (Ca 5 Si 6 O 16 (OH) 2 •4H 2 O), which was encouraged by the addition of slaked lime (Ca(OH) 2 ). The nal solidi ed specimen's strength was heavily depended on the amount of tobermorite formed, with higher concentrations of tobermorite producing commensurately greater mechanical strength. With the addition of slaked lime at 20%-30% by mass, the specimen achieved a exural strength of approximately 16 MPa, which is su ciently great for using as a construction material. As such, there is cause to believe that the hydrothermal processing method used here may have substantial potential for the product of high-quality recycled CRT panel glass with properties suitable for utilization as a construction material.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation of hydrothermally solidified materials from waste cathode ray tube panel glass for construction applications

Zhang

Xu²,

Wang

et al. 2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

Element-based optimization of waste ceramic materials and glasses recycling

Daigo

Kiyohara

Okada

et al. 2018

Resources, Conservation and Recycling

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Preparation of Hydrothermally Solidified Materials from Waste Cathode Ray Tube Panel Glass for Construction Applications

Zhang

2021

Preprint

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Solidification of cathode ray tube (CRT) panel glass was carried out using a hydrothermal processing method. In this way, the glass powder was first compacted in a mold at 20 MPa, and then hydrothermally cured in an autoclave under saturated steam pressure at 200 ℃ for 6 hours. The CRT panel glass was then hydrothermally solidified by the formation of tobermorite (Ca5Si6O16(OH)2·4H2O), which was encouraged by the addition of slaked lime (Ca(OH)2). The final solidified specimen’s strength was heavily depended on the amount of tobermorite formed, with higher concentrations of tobermorite producing commensurately greater mechanical strength. With the addition of slaked lime at 20%-30% by mass, the specimen achieved a flexural strength of approximately 16 MPa, which is sufficiently great for using as a construction material. As such, there is cause to believe that the hydrothermal processing method used here may have substantial potential for the product of high-quality recycled CRT panel glass with properties suitable for utilization as a construction material.

show abstract

Estimation of the Environmental Impact for Recycling Blast Furnace Slag with a Hydrothermal Reaction Based on Life Cycle Inventory Data

Cited by 3 publications

References 8 publications

Preparation of hydrothermally solidified materials from waste cathode ray tube panel glass for construction applications

Preparation of hydrothermally solidified materials from waste cathode ray tube panel glass for construction applications

Element-based optimization of waste ceramic materials and glasses recycling

Preparation of Hydrothermally Solidified Materials from Waste Cathode Ray Tube Panel Glass for Construction Applications

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