Abstract: A full depth thermal crack in an asphaltic pavement is repaired by spraying a first rejuvenating agent into the sides of the crack and over the top portion of the asphalt pavement surrounding the crack, heating the top portion of the asphalt to a predetermined temperature greater than 700.degree. F., scarifying the heated asphalt, adding an asphaltic rejuvenating/emulsion agent to the heated, scarified asphalt, compacting the heated, scarified asphalt into the crack for the full depth of the crack wherein heat in the asphalt added to the crack is transferred to the asphalt surrounding the crack to raise the temperature of the surrounding asphalt sufficient to form a homogeneous bond between the original and new asphalt added to the crack. In a preferred embodiment, the heated, scarified asphalt is added in predetermined quantities into the crack so as to fill the crack only to a predetermined depth and then compacted before additional quantities of asphalt are added and compacted in subsequent steps.

Abstract: A method and apparatus for repairing a utility cut in a section of pavement is provided. The method includes the steps of transferring broken pavement and underlying base material from the utility cut, mixing the transferred material with predetermined quantities of water and binder material to form a fluid, unshrinkable, settable filler mixture which is then reapplied to the utility cut. The filler mixture hardens to a set state in a short period of time. All of the operative elements of the apparatus for performing the method are arranged for use directly at the utility cut site. An optional crusher for reducing larger excavated particles to a smaller size and a heater for heating the filler material reapplied to the utility cut may also be employed. Further, the removed material may be separated according to size to exclude particles above a predetermined size.

Abstract: A method for repairing an opening formed in and below a section of pavement, comprising the steps of partially filling the opening with an unshrinkable filler material such that an upper surface of the filler material is near a lower surface of the section of pavement, heating an upper portion of the filler material so that the upper portion is substantially dried and becomes set, and substantially immediately thereafter making a permanent patch in the pavement section above the dried filler material.