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Study on the Cementitious Activity of Glass Powder

TANG Yue,CHENG Zhongxian,ZHANG Yucai,YANG Xiaojie,LIU Xue’e   

  1. 1.Faculty of Architecture Engineering,Kunming Metallurgy College,Kunming 650033,China;2.Jiangxi Jinxi Cement Co.,Ltd.,Leping333303,Jiangxi,China)
  • Received:2019-11-15 Online:2019-10-31 Published:2019-10-31

Abstract: The cementitious activity of the glass powder was studied by contrasting mortar strength and the lime absorption test.The results showed that the 7d strength of mortar with glasspowder was lower,however the activity index of both 28d and 56d were above 80%  when the dosage was below 20%.The 56d flexural strength of mortar significant improve when mixing glass powder.the fexural strength of mortar increases with the amount of glass powder increases.When the glass powder was added into the Ca(OH)  saturated solution and the cement curing solution.The pH of the solution continuously decreases with age,it show that the glass powder has highly pozzolanic activity.

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