Heating and Cooling Scenario of Blended Concrete Subjected to 780 Degrees Celsius

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Abstract

In this study, the Compressive strength of concretes made with Ground Granulated Blast furnace Slag (GGBS), Pulverised Fuel Ash (PFA), Rice Husk Ash (RHA) and Waste Glass Powder (WGP) after they were exposed 7800 C (exposure duration of around 60 minutes) and then allowed to cool down gradually in the
furnace for about 280 minutes at water binder ratio of 0.50 was
investigated. GGBS, PFA, RHA and WGP were used to replace up to
20% Portland cement in the control concrete. Test for the
determination of workability, compressive strength and tensile
splitting strength of the concretes were carried out and the results
were compared with control concrete. The test results showed that the compressive strength decreased by an average of around 30% after the concretes were exposed to the heating and cooling scenario.
Original languageEnglish
Pages (from-to)407-413
JournalWorld Academy of Science, Engineering and Technology (WASET)
Volume9
Issue number4
Publication statusPublished - 2015

Keywords

  • Pulverised Fuel Ash
  • Rice Husk Ash
  • heating and cooling
  • concrete

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