Anti-freeze and Anti- corrosion Performance of Road Fiber Reinforced Concrete

To research the anti-freeze performance of road fiber concrete in erosion solution, trabecular specimens that contained three kinds of water-cement ratio (0.44, 0.42 and 0.40) was formed. Half of it were treated with protective agent and then placed in distilled water and 10% Na2SO4 solution. The mass, relative dynamic elastic modulus and flexural strength of it were determined by freeze-thaw cycle test. The results showed that: the mass loss rate of concrete decreased with water-cement ratio increased, while the elastic modulus and flexural strength loss rate increased with it, and Na2SO4 solution exacerbated this trend. The surface protective agent had improvement for the three indicators of anti-freeze. In addition, the effect of water-cement ratio and erosion solutions was mutually reinforcing.