8ASTM C156-03,Standard test method for water retention by concrete curing materials[S].
9ASTM C309-03,Standard specification for liquid membrane-forming compound for curing concrete[S].
10HANKAN N A,OSMAN N O,MEHMET A T.Effects of water-cement ratio and curing time on the critical pore width of hardened cement paste[J] .Constructure and B uildi ng Materials, 2008 (23) : 196-200.
