CO2 sequestration in foamed controlled low strength materials


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Naik T. R. , Kraus R. K. , Canpolat F.

Third International Conference on Sustainable Construction Materials and Technologies-SCMT3., Kyoto, Japan, 18 August 2013

  • Publication Type: Conference Paper / Full Text
  • City: Kyoto
  • Country: Japan

Abstract

This project consisted of performance testing and evaluation of foamed Controlled Low-Strength Materials (CLSM) produced using a commercial foam generator.  The CLSM consisted of a ASTM Class C fly ash, water, and foam.  The CLSM was produced using the foam generator with one of three different types of compressed gases: compressed air; carbon dioxide; and, a mixed gas.  One of the goals of this project was to determine the feasibility of using flue gas to generate a low-density CLSM with sufficient strength to be used as lightweight aggregates.  The hypothesis of the project was that the use of the flue gas will promote carbonation of the sample, thereby increasing the compressive strength and binding the carbon dioxide in the carbonation reaction.  The carbonation reaction of the CLSM would also have the potential to reduce carbon dioxide emissions at a coal-fired power plant.