Study on Anti Frost Swelling Treatment of Water Conveyance Channel in Seasonal Frozen Soil Area of Northeast China Considering Foam Concrete
Donggang irrigation district is located in northern China,with numerous water supply channels.In winter,the channels in Donggang irrigation district suffer from frost heave damage,which brings certain inconvenience to the operation of the water channels.In order to solve this problem,this study proposed a kind of foam concrete with glass fiber as the additive,and analyzed the performance of concrete with different glass fiber content.The experimental results show that when the fiber content is 0.6%,the compressive strength of the test block before freeze-thaw is 15.15MPa,and after 50 freeze-thaw cycles,the compressive strength of the test block is 14.62MPa.When the fiber content is 0%,the compressive strength of the test block before freeze-thaw is 11.23MPa,and after 50 freeze-thaw cycles,the compressive strength of the test block is 7.73MPa.The results show that foam concrete has a good performance in frost heave prevention.