石墨水泥砂浆注浆钢纤维混凝土升温化冰研究

Experimental Study on Temperature Rising and Deicing of Graphite-Cement Slurry Infiltrated Fiber Concrete

用石墨水泥砂浆注浆钢纤维混凝土(graphite-cement slurry infiltrated fiber concrete,GSIF-CON)试件进行了不同环境温度条件下的升温和化冰试验.结果表明:GSIFCON材料具有良好的电热升温性能,若试件底部和侧部设有3 cm厚的保温层,其升温速率可提高40%以上;在相同的负温环境下,电功率对化冰热效率和热量损失影响较小,但对化冰时间影响显著;在相同的负温环境和电功率条件下,化冰热效率随冰层厚度的增加而明显提高.

Graphite-cement slurry infiltrated fiber concrete（GSIFCON） specimens were used in the temperature rising and deicing tests under different environmental temperature.The test results indicate that GSIFCON has good electrothermal properties.If a 3 cm thickness insulating layer is placed at the side and in the bottom of the specimens,the temperature rising speed of the specimens increases by over 40%.Under different negative temperature environment,the power has a little influence on the deicing efficiency and the thermal loss,but greatly affect the deicing time.Under the same negative temperature and the same power,the deicing efficiency is raised markedly with the increase of the ice thickness.