Wisconsin WisDOT Standard Specifications (within FDM) — Section 390

Effective with the December 2018 Letting 140 2019 Standard Spec ifications Section 390 Base Patching

390.1Description

(1)This section describes patching areas of existing concrete pav ement with either concrete or asphaltic

mixtures for overlaying with new pavement.

390.2Materials

(1)The contractor may use either c oncrete or asphaltic mixture.

(2)Furnish concrete conforming to the requirements specified for air-entrained high early strength

concrete, grade B, B-FA, B-S , B-IS, B-IP, or B-IT, under 501, except that under the Base Patching Concrete SHES bid item, furnish concrete as specified for SHES concrete repair and replacement in 416.2 . Provide QMP for class II ancillary concrete as specified in 716.

(3)Furnish asphaltic mixture as specified for asphaltic base unde r 315.2 .

(4)Furnish dowel bars and tie bars as the plans show and conformi ng to 505.2.6 .

390.3Construction 390.3.1 General

(1)Unless the contract provides otherwise, keep the road open to traffic during construction. If possible,

restrict operations to one lane at a time. Perform work to caus e the least possible inconvenience to traffic.

(2)Remove areas of existing concre te pavement, including existing patching or surfacing materials, at

locations the plans show or the engineer directs in the field. Saw the connecting edges as true and perpendicular as possible as specified for sawing pavement in 690. Remove the pavement without injury to the remaining pavement. D ispose of removed material a s specified in 204.3.1.3 .

(3)Prepare the foundation as specified in 211 using engineer-approved hand me thods. Place the patch to

the thickness of the contiguous pavement, including the existin g asphaltic pavement or surfacing. 390.3.2 Concrete Patching

(1)Deposit concrete to require as little rehandling as possible, place and consolidate by hand, and strike

off and finish flush with adjoining surfaces. The engineer will not require forms un less necessary to provide the required edge, grade, or alignment.

(2)Cure exposed patches as specif ied for concrete pavement in 415.3.12. Use wax-based curing

compound conforming to 501.2.9 . Protect as specified for concrete pavement in 415.3.14 . Open to traffic as specified for concrete base in 320.3 . 390.3.3 Asphaltic Patching

(1)Construct as specified for asphaltic base under 315 except as modified here in 390.3.3.

(2)Dump material outside the patch area, fill the patch in succes sive layers with shovels, and shape to

the required grade and contour wit h rakes and lutes. Do not rak e dumped material into the patch. The engineer will not require forms unless necessary to provide the required edge, grade, or alignment.

(3)Compact each layer with engineer-approved compaction equipment . Unless the engineer directs

otherwise, compact each layer to a thickness of 6 inches or less. Roll the top layer until flush with the adjacent surface.

(4)Do not open patches to traffic until they are hard enough to p revent rutting or displacement.

390.3.4 Special High Early Strength Concrete Patching

(1)Construct as specified for sp ecial high early strength repairs under 416.3.8 except as follows:

- The contractor may delay removal for up to 14 calendar days after cutting the existing pavement. - Open to traffic as specified for concrete base in 320.3 .

(2)Cure exposed patches as specif ied for concrete pavement in 415.3.12. Use wax-based curing

compound conforming to 501.2.9 . Do not apply excess curing com pound that could cause slippery pavement under traffic.

390.4Measurement

(1)The department will measure Base Patching Asphaltic by the ton or square yard acceptably

completed.

(2)The department will measure Base P atching, Base Patching Concr ete, and Base Patching Concrete

SHES by the square yard acceptably completed.

Effective with the December 2018 Letting 141 2019 Standard Spec ifications 390.5 Payment

(1)The department will pay for measured quantities at the contrac t unit price under the following bid

items: ITEM NUMBER DESCRIPTION UNIT

390.0103 Base Patching SY

390.0201 Base Patching Asphaltic TON

03 Base Patching Asphaltic SY

390.0303 Base Patching Concrete SY

390.0403 Base Patching Concrete SHES SY

(2)Payment for bid items under this section is full compensation for removing old pavement and

disposing of removed materials ; for preparing the foundation; f or providing, curing, and protecting concrete; and for providing and compacting asphaltic mixture, i ncluding the asphaltic material. Payment includes providing tie bars and dowel bars in unhardened concrete and steel within the patch. For tie bars and dowel bars provided in concrete not pla ced under the contract, the department will pay separately under the Dr illed Tie Bars and Drilled Dowe l Bars bid items a s specified in 416.5 .

(3)Base Patching includes providi ng either concrete or asphalt at the contractor's option. Base Patching

Asphaltic includes providing asp haltic material. Base Patching Concrete and Base Patching Concrete SHES include providing concrete.

(4)Payment for Base Patching Concrete SHES is also full compensation for making and testing concrete

cylinders and providing test data to the engineer.

(5)The department will pay for sawing the existing concrete pavement for removal under the Sawing

Concrete bid item as specified in 690.5 .

(6)If the engineer orders the contra ctor to excavate yielding or unstable subgrade materials and backfill

with suitable materials, the department will pay for that work either under pertinen t contract bid items, or as extra work.

Effective with the December 2018 Letting 142 2019 Standard Spec ifications Part 4 Pavements

Effective with the December 2018 Letting 143 2019 Standard Spec ifications Section 405 Coloring and Stamping Concrete

405.1Description

(1)This section describes coloring and stamping concrete used to construct work under other contract bid

items as well as any special materials and special construction techniques associated with using colored concrete. Additional requirements for stamping concrete are in the contract special provisions.

405.2Materials

405.2.1 Coloring Concrete 405.2.1.1 Concrete

(1)Integrally color concrete using non-fading pigments conforming to ASTM C979 .

- For WisDOT red: use synthetic i ron oxides at a loading of 6 p ercent or more by weigh t of total cementitious material in the mix. Match the c oncrete color in reasonably close conformance with WisDOT red color, which is similar to Federal Standard 595 - FS 31136.

(2)Add integral concrete colorant a ccording to manufacturer's ins tructions. Provide a copy of those

manufacturer instructions to the engineer before producing mate rial for incorporation into the work.

(3)The department will accept the colo r based on comparison to Wi sDOT color samples available for

viewing at the department's regional offices.

(4)Maintain mix characteristics fo r colored concrete requiring a matching finish. Use the same source,

brand, type, and color of cemen t, supplementary cementitious materials, aggregates, and admixtures for colored concrete throughou t the project. Use constant cemen t content, supplementary cementitious material content, and water/cementitious materials ratio to maintain consistent color.

(5)Under the Coloring Concrete Custom bid item conform to additio nal project-specific requirements

modifying 405.2.1 specified in an associated Colo ring Concrete Custom contracts pecial provision. 405.2.1.2 Curing Compound

(1)Furnish a liquid membrane-for ming clear curing compound confor ming to ASTM C1315 , type 1.

405.2.1.3 Admixtures

(1)Furnish admixtures designed for use with and compatible with c olored concrete pigments. Do not use

calcium chloride or other admixtures containing chlorides. 405.2.1.4 Colored Concrete Mix Approval 405.2.1.4.1 General

(1)Obtain the engineer's approval fo r colored concrete mixes befo re placing colored concrete. The

engineer will base approval either on a successful performance history or on trial batches. The engineer will evaluate color no ea rlier than 5 days after pouri ng and sealing the test concrete. Upon the engineer's approva l, the submitted sample panel or the test slab will be the visual quality standard for finished work under the contract. 405.2.1.4.2 Performance History

(1)Use the same materials mixed in the same proportions as used o n another department project where

the engineer approved the color t he current contract Coloring C oncrete bid item designates. Ensure that all materials, including admixtures, are of the same type and brand and from the same sources. Provide the following to the engineer for review and approval:

1.Project Info: Project ID, and location.

2.Mix proportions: quantities per cubic yard expressed as SSD weights and net water, water to cementitious

material ratio, air c ontent, and 28-day or earlier compressive strength.

3.Materials: type, brand, and source.

4.Sample panel: a finished colo red concrete sample from the previous project having minimum dimensions

of 2-foot by 2-foot by 1.5-inch. 405.2.1.4.3 Trial Batches

(1)The contractor may use preliminary laboratory or field trial b atching to establish the mix proportions

necessary to conform to the contract-required color.

(2)Produce test slabs to demonstrat e the texture, surface finish, color, and color intensity. At least 2

business days in advance, provi de the engineer with the date an d time for test slab construction.

(3)At an engineer-allowed location on the project, place, finish, and cure a 10-foot by 10-foot by 6-inch

colored concrete test slab using the same methods proposed for contract work. Produce test slabs using the same workers designated to perform the contract work. Retain samples of cements, sands, aggregates, and color additives used in test slabs for comparis on with materials used in contract work.

Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 149–151 of 601.

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405 Coloring and Stamping Concrete