As an essential waterproofing approach in road and bridge protection, spraying a mix of modified asphalt, rubberized asphalt and aggregate with chip spreader on road surface functions to prevent water from penetrating into the bridge deck, and enhancing its cohesion and shear resistance. The protective membrane coated on bridge deck helps stop water from corroding the bridge's beam and reinforcement. On top of that, the elastic asphalt plates applied in bridge is capable of absorbing the stress between asphalt and deck, and protecting the road from deformation.