Utilization of calcite and waste glass for preparing construction materials with a low environmental load

Hirotaka Maeda; Haruki Imaizumi; Hideki Ishida

doi:10.1016/j.jenvman.2011.06.021

Utilization of calcite and waste glass for preparing construction materials with a low environmental load

Hirotaka Maeda, Haruki Imaizumi, Hideki Ishida

Environmental Studies

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

In this study, porous calcite materials are hydrothermally treated at 200 °C using powder compacts consisting of calcite and glasses composed of silica-rich soda-lime. After treatment, the glasses are converted into calcium aluminosilicate hydrates, such as zeolite phases, which increase their strength. The porosity and morphology of new deposits of hydrothermally solidified materials depend up on the chemical composition of glass. The use of calcite and glass in the hydrothermal treatment plays an important role in the solidification of calcite without thermal decomposition.

Original language	English
Pages (from-to)	2881-2885
Number of pages	5
Journal	Journal of Environmental Management
Volume	92
Issue number	11
DOIs	https://doi.org/10.1016/j.jenvman.2011.06.021
Publication status	Published - 2011 Nov 1

Keywords

Calcite
Glass
Hydrothermal treatment
Porous materials

ASJC Scopus subject areas

Environmental Engineering
Waste Management and Disposal
Management, Monitoring, Policy and Law

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AB - In this study, porous calcite materials are hydrothermally treated at 200 °C using powder compacts consisting of calcite and glasses composed of silica-rich soda-lime. After treatment, the glasses are converted into calcium aluminosilicate hydrates, such as zeolite phases, which increase their strength. The porosity and morphology of new deposits of hydrothermally solidified materials depend up on the chemical composition of glass. The use of calcite and glass in the hydrothermal treatment plays an important role in the solidification of calcite without thermal decomposition.

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KW - Hydrothermal treatment

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