Paper Title:
Carbonate Steelmaking Slag to Manufacture Building Materials
  Abstract

Accelerated carbonation is a new technology of materials preparation, which may have potential for the treatment of industrial solid residues and the sequestration of CO2, an important greenhouse gas. In this study, accelerated carbonation was used to recycle steelmaking slag and sequestrate CO2 to manufacture building materials. The experimental results show that the strength of specimens increases along with the increase of carbonation degree. Moisture content, carbonation temperature and curing time have significant effects on the degree of carbonation, and carbonated specimens have larger weight increase and compressive strength increases under the condition of moisture content 12.6%,reaction time 117 min and reaction temperature 361 K. The SEM and XRD analyses indicate that dogtooth like CaCO3 crystals appear on the surface of carbonated aggregate specimens. Strength and soundness test shows that steelmaking slag building materials have higher strength and eligible soundness after accelerated carbonation.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
1943-1946
DOI
10.4028/www.scientific.net/AMR.79-82.1943
Citation
H. Z. Wu, J. Chang, Z. Z. Pan, X. Cheng, "Carbonate Steelmaking Slag to Manufacture Building Materials", Advanced Materials Research, Vols. 79-82, pp. 1943-1946, 2009
Online since
August 2009
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Price
$32.00
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