Carbonation, CO2 sequestration, and physical properties based on the mineral size of light burned MgO using carbonation accelerator

Hongseok Jang; Seungyoung So; Yongtaek Lim

doi:10.1016/j.jclepro.2022.134648

Carbonation, CO₂ sequestration, and physical properties based on the mineral size of light burned MgO using carbonation accelerator

Hongseok Jang
, Seungyoung So
, Yongtaek Lim^*

^*Corresponding author for this work

Department of Architectural Engineering

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

15 Scopus citations

Abstract

This study investigates carbonation of light burned magnesia (LBM) at different calcination temperatures by adding hydrated magnesium carbonates as carbonation accelerator (CA). LBM only produced brucite in the atmosphere, but the LBM with a CA formed hydromagnesite, a naturally cured carbonate. The LBM mortar with a substituted CA formed hydromagnesite showed a rapid increase in the compression strength. As the CO₂ sequestration increased and the rosette-shaped porous structure filled the pores, the long-term compression strength increased. However, when more than the appropriate ratio of CA is added, the CO₂ sequestration of LBM was decreased by suppressing the formation of carbonate.

Original language	English
Article number	134648
Journal	Journal of Cleaner Production
Volume	379
DOIs	https://doi.org/10.1016/j.jclepro.2022.134648
State	Published - 2022.12.15

Keywords

Atmosphere curing
Carbonation
Carbonation accelerator
CO sequestration
Light burned MgO

Quacquarelli Symonds(QS) Subject Topics

Business & Management Studies
Environmental Sciences
Engineering - Mechanical
Engineering - Civil & Structural
Engineering - Electrical & Electronic
Architecture

Access to Document

10.1016/j.jclepro.2022.134648

Cite this

@article{6a90268bf66748d49af0eee2b335510c,

title = "Carbonation, CO2 sequestration, and physical properties based on the mineral size of light burned MgO using carbonation accelerator",

abstract = "This study investigates carbonation of light burned magnesia (LBM) at different calcination temperatures by adding hydrated magnesium carbonates as carbonation accelerator (CA). LBM only produced brucite in the atmosphere, but the LBM with a CA formed hydromagnesite, a naturally cured carbonate. The LBM mortar with a substituted CA formed hydromagnesite showed a rapid increase in the compression strength. As the CO2 sequestration increased and the rosette-shaped porous structure filled the pores, the long-term compression strength increased. However, when more than the appropriate ratio of CA is added, the CO2 sequestration of LBM was decreased by suppressing the formation of carbonate.",

keywords = "Atmosphere curing, Carbonation, Carbonation accelerator, CO sequestration, Light burned MgO",

author = "Hongseok Jang and Seungyoung So and Yongtaek Lim",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

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doi = "10.1016/j.jclepro.2022.134648",

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T1 - Carbonation, CO2 sequestration, and physical properties based on the mineral size of light burned MgO using carbonation accelerator

AU - Jang, Hongseok

AU - So, Seungyoung

AU - Lim, Yongtaek

PY - 2022/12/15

Y1 - 2022/12/15

N2 - This study investigates carbonation of light burned magnesia (LBM) at different calcination temperatures by adding hydrated magnesium carbonates as carbonation accelerator (CA). LBM only produced brucite in the atmosphere, but the LBM with a CA formed hydromagnesite, a naturally cured carbonate. The LBM mortar with a substituted CA formed hydromagnesite showed a rapid increase in the compression strength. As the CO2 sequestration increased and the rosette-shaped porous structure filled the pores, the long-term compression strength increased. However, when more than the appropriate ratio of CA is added, the CO2 sequestration of LBM was decreased by suppressing the formation of carbonate.

AB - This study investigates carbonation of light burned magnesia (LBM) at different calcination temperatures by adding hydrated magnesium carbonates as carbonation accelerator (CA). LBM only produced brucite in the atmosphere, but the LBM with a CA formed hydromagnesite, a naturally cured carbonate. The LBM mortar with a substituted CA formed hydromagnesite showed a rapid increase in the compression strength. As the CO2 sequestration increased and the rosette-shaped porous structure filled the pores, the long-term compression strength increased. However, when more than the appropriate ratio of CA is added, the CO2 sequestration of LBM was decreased by suppressing the formation of carbonate.

KW - Atmosphere curing

KW - Carbonation

KW - Carbonation accelerator

KW - CO sequestration

KW - Light burned MgO

UR - https://www.scopus.com/pages/publications/85140297972

U2 - 10.1016/j.jclepro.2022.134648

DO - 10.1016/j.jclepro.2022.134648

M3 - Journal article

AN - SCOPUS:85140297972

SN - 0959-6526

VL - 379

JO - Journal of Cleaner Production

JF - Journal of Cleaner Production

M1 - 134648

ER -