Glass is wind-proof and transparent with stable performance. Different types of glass have different characteristics if used at different occasions, so it has a wide range of application. When we select glass, we should not only pay attention to the price, but also have a certain understanding of its type and performance, so as to find more suitable materials. This article helps you to understand the composition and construction technology of road marking.
Ⅰ. Glass beads for road marking should be added to road traffic marking
The road traffic marking is mainly set on the road surface, which is exposed to the sun, rain, wind, snow, ice and impact abrasion of vehicles, so there are strict requirements for its performance. First of all, it requires short drying time and simple operation to reduce traffic interference; second, it requires strong reflection ability, bright color and strong reflection to make good visibility in the daytime and night; third, it should have skid resistance and wear resistance to ensure driving safety and service life.
In order to improve the recognition of marking at night and its brightness and durability, reflective glass beads are added. Glass beads for road marking are colorless and transparent small balls, which have the functions of refraction, focusing and directional reflection of light. Mixing the glass beads for road marking into the coating or spreading them on the surface of the coating can reflect the car light back to the driver's eyes, thus greatly improving the visibility of the marking.
Ⅱ. What are the construction steps of road marking
Survey and setting out: set out and make symbols according to the planning drawings. Clear marking paint should be selected for the symbols, and the diameter of the symbols is about 10 mm. After the completion of the symbols, the starting position of the dotted line and the obstruction line should be marked on the road. After being checked, inspected and approved, the construction of marking starts.
Pavement finishing: the pavement should be cleaned manually. Water washing and forest fire extinguisher should be used to clean the pavement as required. Before marking, it is necessary to clean the pavement without dust and other sundries
Marking: select mechanical spraying paint, add glass beads (its content is 0.8kg/l) into the paint, and mix evenly before participating in the machinery. Carry out trial spraying according to the application quantity of standard rules and adjust the application quantity until the standard requirements are satisfied, then carry out formal construction. Train the operators and carry out trial work before construction, Ensure the line shape is beautiful. In special cases, select manual marking. When manual marking, brush two layers. After the first layer is dry, brush the second layer of paint
Finishing: in the process of construction, finishing shall be carried out without throwing, sprinkling, dripping, leaking, pollutant and leakage of mechanical equipment. Finishing a section of marking should be carried out for a section of road, and road cleaning should be carried out without pollution and damage
Safety protection and product protection: during the marking process, the method of combining the protection personnel (flagman) and road cone should be used to protect the safety. After marking, the road cone should be used for protection. Vehicles are not allowed to roll before the paint becomes dry.