The invention discloses an electrothermal method for melting
snow and deicing on
cement concrete pavement, which is characterized in that the method comprises: arranging an electrical heating layer 2-3cm from the pavement, wherein main electrical heating material which is used is 12k or 24k
silica gel skin carbon
fiber heater wire, adopting parallel connection to pave the carbon
fiber heater wire, wherein the distance is 3-10cm, using a reinforcing mesh (or a steel
wire mesh) to erect, using zonal
steel plates on two ends as electrodes, and fixing the end portion of the carbon
fiber heater wire with the
electrode through a screw. The working current of the carbon fiber heater wire is no more than 1.8A and the pavement paving power is 250-1000W / m2. A
control circuit for deicing and melting
snow realizes power on-off control for a circuit according to signals which are returned by a temperature and
humidity sensor on the
cement concrete pavement, and the temperature and
humidity alarming value is regulated according to environment and concrete condition demands to realize power off-on
time control. The effects and benefits of the method of the invention are that ice and
snow on the pavement can be effectively melted in time, traffic is kept to be smooth, the safety of pedestrians is guaranteed, the cost for constructing, operating and maintaining is low, the
thermal transformation efficiency is high, the method is environmental-protective and economic, and the operation is simple, safe and reliable.