Effective with the December 2018 Letting 143 2019 Standard Spec ifications Section 405 Coloring and Stamping Concrete
405.1 Description
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.
405.2 Materials
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 clo se 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 contract s 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. Effective with the December 2018 Letting 144 2019 Standard Spec ifications Use at least a 2-cubic-yard batch or a batch of the size proposed for production whichever is larger. Dispose of surplus or unsuitable material as specified under 205.3.12.
4.Submit final mix design inform ation to the engineer. Including specific sour ces and, if applicable, trade names for materials.
405.2.2 Stamping Colored Concrete
1.Under the Stamping Colored Concrete bid i tem, furnish full-depth colored concrete conforming to
405.2.1 An associated Stamping Colored Concrete contract special prov ision will contain additional
project-specific requirements including the following: - Modifications to 405.2.1 for coloring requirements. - Provisions for required stamps, stamping materials, and surfa ce staining materials.
405.3 Construction 405.3.1 Coloring Concrete
1.Construct work incorporating co lored concrete conforming to co ntract specifications under the associate bid items except cure with clear curing compound and use only non-chloride admixtures as as specified in 405.2 .
2.Produce consistently colored c oncrete in full cubic yard incre ments. The engineer will not allow variations in the quantities, ty pes, or source of materials wit h the exception of minor adjustments of water and air-entrain ing agent. Other change s require mix re-approval.
3.Schedule placement to minimize exposure to rapid drying condit ions, wind, and full sun before applying curing compound. Do not place colored concrete if rain , snow, or freezing te mperatures are forecast within 24-hours.
4.Cover or otherwise protect adj acent concrete work from discolo ration and spillage while placing and curing colored concrete. Remove and replace discolored concrete as the engineer directs.
5.Perform finishing operations con sistently to avoid color varia tion. Do not begin finishing while bleed water is present. The engineer will order removal and replaceme nt of colored concrete if the contractor adds water to the surface to aid in finishing. Apply strokes in the same direction during final finishing and texturing.
6.Protect colored concrete from p remature drying and excessive c old or hot temperatures by promptly applying curing compound. Do not allow plastic sheeting to come in contact with colored concrete.
7.Protect the colored concrete fr om damage. Do not permit constr uction traffic or material storage on colored concrete. Exclude foot tr affic from colored concrete fo r at least 24 hours after placement.
8.Remove test slabs not permanent ly incorporated into the work a nd restore the site after the engineer determines the test slab is no longer needed.
405.3.2 Stamping Colored Concrete
1.Under the Stamping Colored Concrete bid item, conform to 405.3.1. An associated Stamping Colored Concrete contract special provision contains additional project-specific constructi on requirements for stamping and surface staining operations.
405.4 Measurement
1.The department will measure the Coloring Concrete and Stamping Colored Concrete bid items by the cubic yard acceptably incorpora ted into work done under other contract bid items including material incorporated into one sample panel or one test slab that achiev es a color and pattern the engineer accepts as required under 405.3 and the Stamping Colored Concrete contract special provision.
405.5 Payment
1.The department will pay for measured quantities at the contrac t unit price under the following bid items: ITEM NUMBER DESCRIPTION UNIT 405.0100 - 0199 Coloring Concrete (color) CY 405.0200 Coloring Concrete Custom CY 405.1000 Stamping Colored Concrete CY
2.Payment for the Coloring Concre te bid items under this section is full compensation for developing mix designs and providing sample pan els or test slabs; for furnishi ng pigments; for special construction procedures required under 405.3 ; for removing test sl abs, restoring the si te, and disposing of waste material; and for other costs ass ociated with coloring the conc rete. Effective with the December 2018 Letting 145 2019 Standard Spec ifications (3) Payment for Stamping Colored Concrete is full compensation for the costs of coloring the concrete specified above in 405.5(2) ; for the costs of stamping the concrete including additional m aterial requirements under 405.2.2 and construction requirements under 405.3.2 ; for the cost of additional requirements specified in the St amping Colored Concrete contract special provision; and for other costs associated with stamping the concrete.
4.The department will pay separatel y for costs not included in t he 405 bid items under the associated contract bid items for work that i ncorporates colored or colore d and stamped concrete. Effective with the December 2018 Letting 146 2019 Standard Spec ifications Section 415 Concrete Pavement
415.1 Description
1.This section describes constru cting concrete pavement as well as approach slabs, alleys, and pavement gaps.
415.2 Materials
415.2.1 Concrete
1.Furnish grade A, A2, A3, A-FA, A-S, A-S2, A-T, A-IS, A-IP, or A-IT, air-entrained concrete conforming to 501 as modified for class I pavement concrete in 715 . Provide QMP for class I pavement concrete as specified in 715.
2.Furnish high early strength conc rete under the HES bid items. The contractor may use special high early strength concrete as specified for SHES concrete repair a nd replacement in 416.2 for concrete pavement placed in conjunction with the SHES repair and SHES re placement items for repair areas 300 feet long or longer.
3.Maintain a uniform consistency in consecutive batches of concr ete. Use the following slumps for the technique used: SLIP-FORMED NOT SLIP-FORMED 2.5 inches or less 4 inches or less
415.2.2 Reinforcement
415.2.3 Expansion Joint Filler
Revise 415.2.3(1) to include foam expansion joint materials. This change was implemented in ASP 6 effective with the December 2017 letting.
1.Furnish expansion joint fille r conforming to AASHTO M153, AASHTO M213, or ASTM D8139 in lengths equal to the pavement lane width and of the thickness and height the plans show. Where dowel bars are required, use fille r with factory-punched holes at the dowel bar locations and with a diameter not greater than 1/8 in ch larger than the nominal dowe l bar diameter.
415.2.4 Concrete Curing Compounds
2.Furnish curing compound with a resin consisting of 100 percent poly-alpha-methylstyrene and with, by weight, 42 percent or mo re total solids. Modify ASTM C309 to ensure the following: - Loss of water in 24 hours does not exceed 0.15 kg/m2. - Loss of water in 72 hours does not exceed 0.40 kg/m2. - Reflectance in 72 hours is greater than or equal to 65 percen t. - The volatile organic compoun d (VOC) content does not exceed 3 50 g/L.
415.2.5 Concrete Pavement Gaps
1.Use concrete of the same mix design used for the contiguous pa vement. If the engineer allows paving through the gap, use a concret e mix design that will develop 25 00 psi opening strength in an engineer- approved maximum time.
415.2.6 Joint Filler
1.Furnish a hot-poured elastic joint sealer according to ASTM D6690 type II.
415.3 Construction
415.3.1 General
1.Use handling, weighing, batching, mixing, and hauling equipmen t and procedures conforming to 501. In addition proportion aggregates and cement for concrete pavement in batching plants by weight using semi-automatic or automatic batching plants.
2.If using ready-mixed concrete, ensure production and uniform d elivery of at least 80 cubic yards per hour to support two-lane slip-form operations and at least 40 cubic yards per hour for single-lane slip- form or hand placement operations.
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Source: Wisconsin Standard Specifications for Highway and Structure Construction, 2019 Edition. Pages 152–154 of 601. View official source ↗