With the continuous improvement and development of asphalt gravel sealing technology, and its extensive application in the construction and maintenance of national and provincial trunk roads, a series of new asphalt gravel sealing technologies have been born, such as the asphalt fiber chip we are going to introduce now.
Stone sealing technology.
Since the asphalt binder used in the fiber asphalt gravel seal is modified emulsified asphalt, which is in a liquid state, it is allowed to be constructed in a humid environment. However, when construction is carried out on rainy days, the rainwater will cause erosion of the fiber asphalt gravel seal, easily forming The flow of modified emulsified asphalt causes local diseases, and construction on rainy days delays the demulsification speed of modified emulsified asphalt, prolongs the strength development time, and increases the maintenance time. Therefore, the construction of fiber asphalt gravel sealing layer should try to avoid rainy conditions. Temperature has a great influence on the construction of fiber asphalt gravel sealing layer. Too low temperature can easily cause insufficient strength of fiber asphalt gravel sealing layer. According to domestic and foreign construction experience, when the temperature is greater than 10℃ and the temperature is on the rise, Fiber asphalt gravel seal can be applied.

The impact of construction technology on road performance: The fiber asphalt gravel seal uses a fiber asphalt spreader truck to spray two layers of modified emulsified asphalt and a layer of fiber at the same time, and then the gravel spreader truck spreads the gravel evenly, and then rolls it Forming, each process has strong continuity, and the construction technology has a great influence on the performance of the fiber asphalt gravel seal. The impact of the construction technology of fiber asphalt gravel seal on road performance is mainly reflected in the following aspects: (1) The fiber asphalt gravel seal is a wearing layer added on the basis of the original road surface. Before construction, the conditions of the original road surface should be met. Be as perfect as possible. The fiber asphalt gravel seal cannot improve the strength of the original pavement. If the defects such as potholes, bumps, subsidence, shifting, ruts and cracks in the original pavement are not dealt with in time, the fiber asphalt gravel seal will be damaged under the action of load. Diseases will appear early; on the other hand, if the original road surface is not cleaned before construction, it will cause poor bonding performance of the local fiber asphalt gravel seal layer, resulting in peeling. (2) Spraying asphalt fiber, spreading gravel, and rolling molding of the fiber asphalt gravel seal are carried out simultaneously. Construction organization control includes the debugging of the spreader truck, on-site traffic control, and sampling of raw materials. For the fiber asphalt seal, Road performance also has a certain impact.