Design and Pavement Performance Study of High-light Hot-melt Marking
This research show a kind of bright hot-melt road marking with better comprehensive road performance is synthesized on the basis of the original performance of common commercially available hot-melt road marking.Based on the mixture test design method,by optimizing the combination of nano-titanium dioxide,mineral aggregate,plasticizer and other materials,the skid resistance,chromaticity performance and adhesion of the road markings were used as the response values,and the durability of hot-melt marking is optimized by response surface analysis.The skid-resistance,chroma and adhesion properties were tested and analyzed,and the optimal mix was as follows:C5 petroleum resin 20％,nano titanium dioxide 5％,light calcium oxide 32％,ceramic particles 10％,glass beads 32％,plasticizer 1％.According to the infrared spectrum analysis,the main factors of the difference in the absorption peak strength between the optimal hot-melt marking and C5 resin are light weight calcium carbonate and plasticizer.The results of microstructure test show that the adhesion between the resin and the filler is good,the surface structure is only partially destroyed,and the microstructure density is better than that of the common hot-melt marking.The visual performance of road marking can be greatly improved by spreading 0.5 kg/m3 glass beads with a refractive index of 1.9.
万方数据
