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运用快速测试方法研究了w/c、硅灰、集料的最大粒径和类型对混凝土氯离子渗透性的影响。研究结果表明:用该快速测试方法来测试混凝土氯离子渗透性是可行的。氯离子渗透性随w/c的增加而增大,掺入硅灰后渗透性显著下降。集料粒径在8~25 mm范围内对渗透性影响有限。掺硅灰的高强轻集料混凝土渗透性非常低。
The influence of the maximum particle size and type of w / c, silica fume and aggregate on the chloride ion permeability of concrete was studied by rapid test. The results show that it is feasible to test the chloride ion permeability of concrete by this rapid test method. Chloride ion permeability increases with the increase of w / c, permeability decreases significantly after silica fume incorporation. Aggregate diameter in the range of 8 ~ 25 mm permeability has a limited impact. High silica fly ash lightweight aggregate concrete permeability is very low.