Paper Title:
Practical Recycling Application of Power Plant Coal Ash for High Performance Shotcrete Material
  Abstract

This study intends to increase the consumption of coal ash which is an industrial by-product from power plants. The coal ash used to be deposited in the ground and its recycling has been very poor comparing to the produced amount. This study aims to enhance practical application of coal ash as a shotcrete construction material. Derived were optimum mix proportions for high performance shotcrete using coal ash. In order to enhance long term performance, silica fume was also added. Experimental variables included replacement ratio of silica fume and coal ash. Compressive strength and potential hazardous contamination to soil were the primary factors in the performance evaluation. From the test results, when fly ash was replaced up to 10% of the cement, most required specifications were satisfied. Hazardous material content was shown to be well below the specifications. Therefore, when appropriate caution in handling is given in the field, it is strongly anticipated to increase the coal ash recycling as a shotcrete construction material.

  Info
Periodical
Materials Science Forum (Volumes 620-622)
Edited by
Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee
Pages
251-254
DOI
10.4028/www.scientific.net/MSF.620-622.251
Citation
C. W. Park, K. N. Kim, "Practical Recycling Application of Power Plant Coal Ash for High Performance Shotcrete Material", Materials Science Forum, Vols. 620-622, pp. 251-254, 2009
Online since
April 2009
Export
Price
$32.00
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