Material composition proportion design method for self-heating bonding layer of paving type asphalt blanket

The invention discloses a material composition proportion design method for a self-heating bonding layer of a paving type asphalt blanket, and particularly relates to the field of material design of the self-heating bonding layer of the paving type asphalt blanket. The paving type asphalt blanket self-heating bonding layer is composed of a binding agent and a heat generating agent, the binding agent is composed of SBS modified asphalt, and the heat generating agent is formed by uniformly mixing reduced iron powder, carbon powder, sodium chloride and calcium oxide. According to the method, through a heating test, the optimal composition proportion of all the composition materials in the heating agent is determined, then the unit heating value of the heating agent in the composition proportion is calculated, and finally the distribution proportion of the heating agent and the binder is designed according to the pavement interlayer heat transfer rule. According to the method, by calculating the spraying proporti