Paper Title:
Study of Modification of High Temperature Melting Compound Steel Slag-Fly Ash
  Abstract

Reconstruction of high temperature melting compound steel slag-fly ash can be effectively digest f-CaO in steel slag. The experimental result shows that the f-CaO contents in modified slag is greatly affected by fly ash addition(respectively 5%, 7%, 14%) when the temperature is 1580°C and constant temperature is 30min, the digestion rates are respectively 56.99%,63.69%,68.55%. Modified mineral content of the steel slag changes greatly, mainly reflects at enormous increase in magnetite, dicalcium silicate, tricalcium silicate, wustite and vitreous. By micro-structure analysis of several kinds of modified slag mineral, tricalcium silicate mainly shape for branch of tree, dicalcium silicate is in the form of a circular, wustite and vitreous mainly distribute in aggregation state. The above minerals can increase cementitious activity for modified slag becoming cement.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Waste Engineering and Management
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
1851-1855
DOI
10.4028/www.scientific.net/AMR.291-294.1851
Citation
Y. Long, Y. Shi, Y. B. Lei, H. W. Xing, J. Li, Y. Z. Zhang, "Study of Modification of High Temperature Melting Compound Steel Slag-Fly Ash", Advanced Materials Research, Vols. 291-294, pp. 1851-1855, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Min He, Jun Zhe Liu, Tian Hong Wang
Abstract:In precast concrete elements manufacturing, steam-cured concrete incorprating 30% mineral admixtures encountered the problem of too low...
1535
Authors: Jian Hua Wu, Yun Lan Liu
Abstract:This paper studies the influence of different mineral admixtures(fly ash and ground granulated blast furnace slag)on the carbonation...
366
Authors: Dong Dong Wang, Wei Li Tian, Cheng Qi Wang
Chapter 8: Constructional Materials
Abstract:Experiments on adiabatic temperature rise are systematically carried out in this paper, the characteristics of adiabatic temperature rise of...
917
Authors: Guang Ri Luan, Lian Jun Wang, Yi Li
Chapter 1: Road and Railway Engineering
Abstract:In this paper, the influence of compound mineral admixture on cement mortar’s performance is studied. The optimum compound proportion of...
373
Authors: Yong Jing Liu, Yan Hong Guo, Qiao Wang
Chapter 6: Inorganic and Organic Chemical Engineering
Abstract:Selecting the Zichang coal as the sample coal, the chemical composition of the ash is analyzed with X-ray diffraction. The fusibility of coal...
1278