180 0

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

Title
Effectiveness of carbonated lime as a raw material in producing a CO2-stored cementitious material by the hydrothermal method
Author
조병완
Keywords
Alternative cementitious material; Carbonated lime; Hydrothermal synthesis; CO2 emission; Physical and mechanical properties
Issue Date
2015-10
Publisher
ELSEVIER SCI LTD
Citation
CONSTRUCTION AND BUILDING MATERIALS, v. 95, Page. 556-565
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 similar to 34 MPa compressive strength. Finally, a plausible mechanism has been proposed to explain the overall performances of the CO2-stored cementitious material. (C) 2015 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0950061815300787?via%3Dihubhttp://hdl.handle.net/20.500.11754/28349
ISSN
0950-0618; 1879-0526
DOI
10.1016/j.conbuildmat.2015.07.062
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE