Crack sealing machine is specially used to sealing the crack and crevices in the pavement of express ways,highways,municipal streets and airports after new opening and heavy repaired.After notched by crack router and sealing by special sealing glue,ensure the whole usability and working time.
However, it is necessary to know the type of the crack before operating the crack sealing machine. There are some types of cracks:
Reflective Cracks: Cross either from shoulder to shoulder or from shoulder to centerline. Caused by inability to redistribute stresses that occur along pavements' width and length as temperature increases.
Longitudinal Cracks: Run the length of the pavement, roughly parallel to centerline. Caused by inability to redistribute stresses that occur along pavement's width and length as temperature increases.
Block Cracks: Block or square pattern, spaced between 4 and 12 feet. Caused by traffic load and volume or by failures in base or subgrade materials.
Alligator/Map Cracks: Pattern that resembles alligator skin or road map. Caused by serious deterioration of road; cannot be saved by cracksealing.
Parking Lot Cracks: Block-type, random fashion 10 to 20 feet apart. Caused by pavement aging, oxidizing or shrinking. (Sometimes caused by sub-base failure; this issue should be addressed from the sub-base up.)
After knowing the type of the crack, it is time to use the crack sealing machine to seal the crack, if you have any question, please feel free to contact with us, we will reply to you as soon as receive your letter.
