Effective with the December 2018 Letting 134 2019 Standard Spec ifications Section 330 Milled and Re-laid Pavement
330.1 Description
1.This section describes partial depth in-place milling of the e xisting asphaltic pavement and relaying the milled material to construct a new base.
330.2 (Vacant)
330.3 Construction
1.Mill the existing asphaltic pavement to the depth the plans show and until 100 percent will pass the 1 1/2-inch sieve. Windrow materia l as construction operations dic tate.
2.Immediately after milling, relay the material with a paver, gr ader, or both a paver and grader.
3.Match the lines, grades, and cr oss slopes the plans show. Elim inate localized bumps, depressions, and ruts. Unless the engi neer specifically di rects, the contractor is not required to haul material from one location on the project to another.
4.Immediately after relaying, compact the re-laid material first with either a rubber tired roller or vibratory padfoot roller and second with a v ibratory steel roller. Add water, as required, both before and during compaction. Compact each layer to the extent required for stand ard compaction under 301.3 . Use compaction equipment as follows: 1. For a compacted lift of 6 inc hes or less, use equipment as specified in 301.3.1. 2. For a compacted lift from 6 to 8 inches, use a 12.5-ton or heavier vibratory padfoo t roller and an 8 ton or heavier vibratory steel roller. 3. For a compacted lift greater than 8 inches, split into lift s less than 8 inches and use the equipment specified for those lift thicknesses.
5.Perform each day's mill and re lay operations to avoid leaving abrupt longitudinal differences between adjacent lanes. Repair surface damage, caused by intervening co nstruction or public traffic, immediately before paving as ne cessary to provide a good riding pavement.
330.4 Measurement
1.The department will measure Mill and Relay by the square yard acceptably completed, measured using the centerline length and the width from outside to outside of completed base, but limited to the width the plans show or the engineer directs.
330.5 Payment
1.The department will pay for the measured quantity at the contr act unit price under the following bid item: ITEM NUMBER DESCRIPTION UNIT 330.0100 Mill and Relay SY
2.Payment is full compensation fo r milling, windrowing, relaying , furnishing and adding water, shaping, compacting, and removing and disposing of excess material. If t he engineer requires hauling material from one location on the project to another, the department wil l pay for that hauling as extra work.
3.Payment also includes water fo r compaction and dust control ex cept, if the contrac t contains the Water bid item, the department will pay s eparately for compaction and dust control water under 624.5 . Effective with the December 2018 Letting 135 2019 Standard Spec ifications Section 335 Rubblized Pavement
335.1 Description
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.
335.2 Materials
1.Furnish filler aggregate conforming to 305.2 . Use either 1 1/4-inch or 3 /4-inch base material.
335.3 Construction
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 acros s 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 dimen sions.
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 expos ed 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, expan sion 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 seat ed 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.
335.4 Measurement
1.The department will measure Rubbl izing by the square yard acce ptably completed.
335.5 Payment
1.The department will pay for the measured quantity at the contr act unit price under the following bid item: ITEM NUMBER DESCRIPTION UNIT
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Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 143–143 of 601. View official source ↗