It is assumed in this manual that where cracks are exhibiting significant vertical deflections, the appropriate repair strategy will be sought. Hence, for cracks with limited vertical movement, horizontal movement becomes the critical factor in determining the need for Crack Sealing Machine, and planning of using Crack Sealing Machine, a crack treatment operation.
Frequently, the first cracks to appear in a pavement are transverse cracks. However, several different types of cracks may appear at one time. In these cases, one treatment, using a material appropriate for the most demanding crack type, is desirable.
Though crack width may be a factor in determining whether to choose Crack Sealing Machine seal or fill, the amount of annual horizontal movement of the targeted crack type should be the principal basis for this decision. Normally, working cracks with limited edge deterioration should be sealed, whereas non-working cracks with moderate to no edge deterioration should be filled.
