Effective with the December 2018 Letting 135 2019 Standard Spec ifications Section 335 Rubblized Pavement
335.1Description
(1)This section describes rubblizin g and compacting existing conc rete pavement to create a stable
construction platform for a pavem ent overlay either with or wit hout an intermediate base layer.
335.2Materials
(1)Furnish filler aggregate conforming to 305.2 . Use either 1 1/4-inch or 3 /4-inch base material.
335.3Construction
335.3.1 General
(1)Use self-contained, self-propelle d breakers. Use 10-ton or hea vier rollers and roll at 6 feet per second
or slower. Run vibratory rolle rs at an engineer-approved freque ncy and amplitude. A roller pass is defined as down and back in the same path.
(2)Before rubblizing, saw full depth joints and completely sever load transfer devices to isolate the
rubblizing area. Saw jointed pavements at an existing joint. Do not damage adjacent pavement during rubblization. Repair damage to the adjacent pavement caused by contractor operations as the engineer directs.
(3)Use water to control dust until overlaying the rubblized pavement.
335.3.2 Rubblizing
(1)Break concrete uniformly across the pavement width into particles that have a maximum dimension
less than or equal to 12 inches. A lso, 75 percent of the partic les, as the engineer determines visually, must have a maximum dimension less than or equal to the followi ng: - In the bottom half o f the slab; 9 inches. - In the top half of the slab; 3 inches. - At the surface of the slab; 2 inches.
(2)The engineer may direct or allow larger maximum particle dimensions.
(3)Determine particle size by excavating 2 test holes, of about 9 square feet each, during the first half
day. Excavate at least one test hole per lane mile thereafter u nless the engineer directs or allows otherwise. Backfill and restore the stability of each test hole .
(4)Do not damage pipes, valve boxes, manholes, and other fixtures . The contractor may prevent damage
by doing one or more of the following:
1.Use engineer-approved, modified methods around fixtures and above pipes.
2.Remove pavement around fixtures and above pipes, backfill w ith aggregate, and compact.
(5)Repair damage to pipes, valve boxes, manholes, and other fixtu res as the engineer directs.
(6)Remove reinforcing steel exposed at the surface by cutting below the surface and disposing of the
steel as specified in 203.3.4. Do not remove unexposed reinforcing steel. 335.3.3 Compacting
(1)Compact the rubblized area using 2 passes with a vibratory ste el roller. The engineer may adjust the
number of passes to achieve the desired compaction and stabilit y.
(2)Remove loose asphaltic patchi ng material, joint fillers, expansion material, or other similar materials
from the compacted surface. Also remove pavement or patches tha t have a maximum dimension greater than or equal to 6 inches that are either not well seated or projecting more than one inch. Dispose of removed material as specified in 203.3.4 .
(3)Fill holes and localized depressions, deeper than 2 inches, wi th filler aggregate and compact as the
engineer directs.
(4)If paving with no intermediate base layer, roll the entire surface additionally, unless the engineer
directs or allows otherwise, as follows:
1.One pass with a pne umatic-tired roller.
2.One pass with a vibratory ste el roller immediately before p aving.
335.4Measurement
(1)The department will measure Rubbl izing by the square yard acce ptably completed.
335.5Payment
(1)The department will pay for the measured quantity at the contr act unit price under the following bid
item: ITEM NUMBER DESCRIPTION UNIT
Effective with the December 2018 Letting 136 2019 Standard Spec ifications 335.0100 Rubblizing SY
(2)Payment is full compensation for rubblizing; removing pavement adjacent to fixtures or above pipes;
removing exposed steel; compacting; disposing of removed material; excavating, backfilling, and restoring the stability of tes t holes; and repairing damage to pipes, fixtures, and the adjacent pavement.
(3)Payment also includes water fo r dust control except, if the co ntract contains the Water bid item, the
department will pay separately for dust control under 624.5 .
(4)The department will pay separately for sawing under the Sawing Concrete bid item as specified in
690.5 .
(5)The department will pay separatel y for filler aggregate under the Base Aggregate Dense bid items.
This payment includes furnishing, placing, and compacting aggre gate used to fill holes and depressions.
Effective with the December 2018 Letting 137 2019 Standard Spec ifications Section 340 Cracked and Seated Pavement
340.1Description
(1)This section describes cracking and seating existing concrete pavement to create a stable
construction platform for a pavement overlay. 340.2 (Vacant)
340.3Construction 340.3.1 Equipment
(1)Use a spade or guillotine type breaker mounted on a vehicle an d capable of controlled forward and
transverse movement. The breaker must be capable of exerting a minimum of 12,000 foot-pounds of energy.
(2)Use 10-ton or heavier vibrator y rollers operated at an enginee r-approved frequency and amplitude.
340.3.2 Cracking and Seating
(1)Crack the pavement full depth while maintaining aggregate inte rlock between the pieces. Do not
unduly displace the concrete; damage drainage facilities, utili ties, or other property; or destabilize the base or subgrade.
(2)Crack concrete uniformly across the pavement width into pieces approximately 4 to 8 square feet in
area and having their maximum di mension transverse to the pavem ent centerline. Do not crack concrete within 2 feet of transve rse joints, or at other locati ons designated by the contract or engineer.
(3)Roll the cracked surface to firmly seat the cracked pieces and produce an even surface. Clean the
surface of the cracked and s eated pavement before opening to tr affic and again just before placing the asphaltic leveling co urse. Remove dust, dirt, debris, or other foreign or loose material.
340.4Measurement
(1)The department will measure Cracking and Seating by the square yard acceptably completed.
340.5Payment
(1)The department will pay for the measured quantity at the contr act unit price under the following bid
item: ITEM NUMBER DESCRIPTION UNIT
340.0100 Cracking and Seating SY
(2)Payment is full compensation for cracking, rolling, and cleani ng the concrete pavement.
Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 144–145 of 601.