Paper Title:
Analysis of Testing Methods for Volume Stability Evaluation of Steel Slag Sand
  Abstract

Many testing methods are used to evaluate the volume stability of steel slag sand, but none of them can legalized widely, which hinders its extensive use. Three typical methods-chemical analysis method, steam powdering ratio and mortar bar linear expansion rate under hot-water curing condition are compared in this investigation. The results showed that though chemical analysis method could rapidly judge the volume stability, the content of free CaO and MgO wasn’t precise because of the interference of calcium hydroxide and magnesium hydroxide in aging steel slag sand; the maximum powdering ratio reflected the uneven distribution of expansion components ; mortar bar expansion rate visually presented the volume stability of steel slag sand when used in mortar or concrete. So it was a synthetic application in order to decide the volume stability of steel slag sand.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
1134-1138
DOI
10.4028/www.scientific.net/AMR.250-253.1134
Citation
Y. X. Lun, S. S. Liu, M. K. Zhou, X. F. Liu, "Analysis of Testing Methods for Volume Stability Evaluation of Steel Slag Sand", Advanced Materials Research, Vols. 250-253, pp. 1134-1138, 2011
Online since
May 2011
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Price
$32.00
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