681.3(b) 681.4(b) required to raise the pavement to within 0.02 foot, plus or minus, from a string line grade, or as directed. If jacking jointed slabs of concrete pavement and bridge end slabs, pump in a pattern and in the amount required to raise the pavement to within 0.03 foot, plus or minus, from a string line grade, or as directed. Continuous pressures to 200 pounds per square inch will be allowed. Pressure to 300 pounds per square inch will be allowed only for short periods as directed , except if the pavement is bonded to the subgrade, brief pressure rises to 600 pounds per square inch will be allowed.
2.d Overjacking. Bring pavement, raised above the tolerances listed above, to grade by grinding. If the overjacking is greater than 0.10 foot, satisfactorily remove and replace the pavement in as specified in Section 5 16 at no additional cost to the Department.
2.e Opening to Traffic. Section 679.3(b)2.d
1.a Pump Unit. Section 679.3( d)1.a
1.b Drill. Section 679.3(d)1.b
1.c Pavement Plugs. Section 679.3(d)1.c
1.d Miscellaneous. Section 679.3(d)1.e
2.a Drilling Holes. Section 679.3(d)2.a
2.b Jacking. Inject the high -density polyure thane material under the slab. Control the amount of rise by regulating the rate of injection of the material. When the nozzle is removed from the hole, remove any excess material from the area. If jacking continuously reinforced concrete pavement, pump in a pattern and in the amount required to raise the pavement to within 0.02 foot, plus or minus, from a string line grade, or as directed. If jacking jointed slabs of concrete pavement and bridge end slabs, pump in a pattern and in the amount required to raise the pavement to within 0.03 foot, plus or minus, from a string line grade, or as directed.
2.c Overjacking. Section 681.3(b)2.d
2.d Opening to Traffic. Section 679.3(d)2. d
681.4MEASUREMENT AND PAYMENT —
686.1 686.1(f)
686.1DESCRIPTION —This work is construction surveying for roadways, roadway appurtenances, and
structures. This work is to preserve vertical and horizontal controls and stationing throughout the construction phase up to and including fin