The　potential　of　using　waste　glass　powder　to　increase　the　chloride　binding　capacity　of　fly　ash/cement　hardened　paste　was　investigated.　When　only　fly　ash　replacing　cement,　the　chloride　binding　capacity　was　raised　within　28d　when　the　fly　ash　replacement　level　was　in　the　range　from　30-50%　by　mass.　But　at　a　longer　age　of　60　to　90d,　the　binding　performance　was　increased　at　the　replacement　level　of　10-30wt%.　The　chloride　binding　capacity　of　glass　powder-fly　ash-cement　system　was　increased　by　adding　glass　powder　of　2%　and　4%　by　mass　at　7d　while　those　at　larger　addition　and　longer　age　reduced.　The　reduction　was　found　to　be　related　to　the　release　of　alkali　ion　due　to　the　addition　of　glass　powder　in　the　paste.　©　ICDCS　2018.　All　rights　reserved.