Preventive maintenance - ultra-thin micro seal technology
Used in high economic level of the country's many years practice has proved that preventive maintenance is reasonable compaction theory base, decision-making mechanism, workflow standards, technical measures, science, material gains obvious form of highway maintenance, and domestic road management organizations according to the exploration and use of preventive maintenance to begin with, the lack of basic information and practical experience, the current domestic exploration situation still exists insufficient part.One is the lack of road use function information. Domestic highway construction and management of time is not long, lack of experience, information collecting stage is shorter, and information gathering one-sided, collect the information accuracy is low, have build their sound database, it is difficult to use data analysis to build a stable and efficient pavement performance analysis system for a long time.Second, pavement performance inspection measures lag. The current domestic implementation of information gathering and the inspection way and lagging equipment, such as pavement destroyed most of the research on the visual level, that requires huge capital and the amount of the test.3 it is ideological and cognitive problems. For a long time, the domestic highway agencies on the maintenance is always passive, after the event, usually all is pavement damage very serious emergency when adopt relevant measures, but the lack of the thought of preventive measures, information gathering on the pavement performance is mostly in the form of passive collection, many are in response to the competent agency inspection, did not build a substantial database system.