Research Article

Research on Carbonation Characteristics and Frost Resistance of Iron Tailings Powder Concrete under Low-Cement Clinker System

Table 11

Porosity of concrete (%).

Total porosity<0.02 μm0.02–0.1 μm0.1–0.2 μm>0.2 μm
BeforeAfterBeforeAfterBeforeAfterBeforeAfterBeforeAfter

A115.4722.4013. 682.491.091.400.133.770.5714.74
A316.0322.9815.244.530.431.980.262.420.1014.05
A517.8327.0815.112.851.112.700.394.421.2217.11
B17.1213.166.641.350.210.290.111.490.1610.03
B37.5911.096.831.580.580.700.090.310.098.50
B59.6115.637.902.110.540.890.261.280.9111.35