Feasibility of stabilizing expanding property of furnace slag by autoclave method

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Abstract

Furnace slag was stabilized in an autoclave environment and then transformed into a mortar bar for the autoclave test. The expansion capacity of the slag mortar bar was observed to evaluate the feasibility of stabilizing slag expansion through the autoclave method. Results showed that the pretreatment of furnace slag by autoclave method is effective in stabilizing slag. The required time for stabilizing furnace slag is related to the property of the slag itself. Slag is completely stabilized when the expansion capacity of the slag mortar bar does not exceed 0.052% after three hours of autoclave at 215.7 °C.

Original languageEnglish
Pages (from-to)552-557
Number of pages6
JournalConstruction and Building Materials
Volume68
DOIs
StatePublished - 15 Oct 2014

Keywords

  • Aggregate
  • Autoclave expansion
  • Furnace slag
  • Mortar bar

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