asphalt prime coat application

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» Use of Prime Coat

A prime coat is an application of a low viscosity asphalt to a granular base in preparation for an initial layer (or surface course layer) of asphalt. What is the purpose of a prime coat? There are four primary purposes for the application of a prime coat …

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Use of Prime Coat – Asphalt Pavement Association of New …

A prime coat is an application of a low viscosity asphalt to a granular base in preparation for an initial layer (or surface course layer) of asphalt. What is the purpose of a prime coat? There are four primary purposes for the application of a prime coat on an …

Tack Coat And Prime Coat Applications With Asphalt ...

Why use prime coat? Prime coats protect the integrity of the granular base during construction and help reduce dust. In the case of a base which is to be covered with a thin hot mix layer or a chip seal for a low volume roadway, priming ensures a good bond between the seal and the underlying surface which otherwise would have a tendency to delaminate.

What is the purpose of a prime coat in Road pavement ...

May 28, 2015 · A prime coat is an application of a low viscosity asphalt to a granular base in preparation for an initial layer (or surface course layer) of asphalt. The purpose of the prime coat is; to coat and bond loose material particles on the surface of the base, to harden or toughen the base surface to provide a work platform for construction equipment, to plug capillary voids in the base course …

Surface King Tack & Prime Coat Applications With Asphalt ...

Tack Coat Tack coat (also known as bond coat) is light spray application of diluted asphalt emulsion between hot mix asphalt layers designed to create a strong adhesive bond without slippage. Heavier applications may be used under porous layers or around patches where it also functions as a seal coat.

Hot-Mix Asphalt - Prime Coat

The prime coat shall be applied uniformly and at a rate that will provide a residual asphalt rate on the prepared surface as specified in the following table. Type of Surface to be Primed Residual Asphalt Rate

To Prime or Not to Prime ... That is the Question | For ...

Dec 01, 2004 · A prime coat is an application of an asphalt cutback or emulsified asphalt to a prepared base. The base can be either a subgrade or a base rock. Prime functions as a …

Basics of Prime Coat and Tack Coat in Road Construction ...

Dec 20, 2018 · The layer between Asphalt Course and Crushed Aggregate Base Course (CABC) is called Prime Coat. Its purpose is to bind the loose aggregates of CABC so that it can be prepared for subsequent construction activity of laying Asphalt layer.

UFGS 32 12 13 Bituminous Tack and Prime Coats

material when prime coat is used to improve coverage and penetration of asphalt material. Apply bituminous coat only when the atmospheric temperature in the shade is 10 degrees C 50 degrees F or above and when the temperature has not been below 2 degrees C 35 degrees F for the 12 hours prior to application, unless otherwise directed.

Asphalt Pavement Construction | Asphalt Institute

If the granular base material has a gradation that is somewhat porous, placing a prime coat can often be affected by placing a slow-setting emulsion (SS-1, SS-1 h, CSS-1, CSS-1 h) diluted 5 parts water to 1 part emulsion. By applying several (4 or 5) light applications (0.10 gal/sy), a waterproof surface can be obtained on the base course.

Pavement Manual: Pavement Surface Preparation

A prime coat is a sprayed application of a cutback asphalt or asphalt emulsion (AE) applied to the surface of untreated subgrade or base layers. The prime coat serves several purposes: fills the surface voids and protects the base from weather, stabilizes the fines and preserves the base material integrity, and

What is the Difference Between a Prime Coat and Tack Coat?

Purpose

Hot-Mix Asphalt - Prime Coat (BMPR)

Apr 25, 2014 · The prime coat shall be applied uniformly and at a rate that will provide a residual asphalt rate on the prepared surface of 0.25 lb./sq. ft. ± 0.01 (1.21 kg/sq. m ± 0.05).

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Prime Coat Calculations for IDOT | Hildebranski

Prime Coat Calculations for IDOT. About a year ago, the Illinois Department of Transportation (IDOT) changed the way it measures & pays for bituminous prime coat. What used to be a simple computation became complicated (just like everything in construction anymore….). The specification requirements were expanded, increasing the degree of ...

Specification for Prime Coat and Tack Coat

Jun 23, 2020 · Tack Coat Application The tack coat shall be applied on paved surfaces and vertical surfaces, such a , which will be in contact with the asphalt paving by means of bitumen distributor at a maximum rate of 0.25 liters per square meter or as directed by the client representative.

Tack Coat Guidelines

The asphalt binder tack coat used to bond the geosynthetic pavement interlayer is sufficient to provide the bond for the layer of hot mix asphalt that will placed over the geosynthetic pavement interlayer.

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607 - ASPHALT PRIME COAT SECTION 607 ASPHALT …

Apply the prime coat to asphalt surfaces immediately after final rolling, and before any traffic has been allowed upon or the surface has hardened and glazed hindering the penetration of asphalt material. Using a distributor (see subsection 155.2), uniformly apply asphalt material at the rate shown in …

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PART VII – MISCELLANEOUS ITEM P-602 BITUMINOUS …

The prime coat shall be applied only when the existing surface is dry or contains sufficient moisture to get uniform distribution of the bituminous material, when the atmospheric temperature is above 60°F (15°C), and when the weather is not foggy or rainy.

VIRGINIA DEPARTMENT OF TRANSPORTATION …

Prime and Cover are to be placed on areas subject to public traffic as soon as possible. When Blotted Seal Coat or Surface Treatment is specified, the Prime and Cover shall be the initial seal or prime coat with same rate as shown on plans. L When liquid asphalt material is used as a …

7 Mix Placement and Compaction - IN.gov

application rate of asphalt materials and cover aggregate for prime coats. The asphalt material is not allowed to be applied on a wet surface, when the ambient temperature is below 50° F, or when other unsuitable conditions exist, unless approved by the Engineer. The rubblized

Ergon Asphalt - ePrime Eco-Friendly Prime Coat

Ergon Asphalt ePrime Eco-Friendly Prime Coat Solvent-free prime coat that allows for same-day paving in as little as 3 hours after application. ePrime is a quick-curing, environmentally friendly prime coat that protects your base from moisture during the construction phase, its most vulnerable period.

Frequently Ask Questions | Asphalt Enterprises Atlanta, GA

A prime coat is an application of a low viscosity asphalt to a granular base in preparation for an initial layer (or surface course layer) of asphalt. The purpose of the prime coat is; to coat and bond loose material particles on the surface of the base, to harden or toughen the base surface to provide a work platform for construction equipment ...

asphalt tack sprayer, asphalt tack sprayer Suppliers and ...

Harga liquid asphalt sprayer rubber bitumen sprayer truck ead 8000i asphalt tack coat enuo 1 year new iso 10 tons dongfeng sinotruk jac. US $50000-$55000 / Set. 1 Set (Min Order) Zhongshan Enuo Machinery Limited. CN 2 YRS. 100.0% Response Rate. Contact Supplier. 1/5.

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prime coat

When is a Tack Coat Necessary?

A tack coat is used to help the overlay adhere to the underlying, weathered pavement surface. Normally, when a new layer of hot-mix or coldmix asphalt is placed, the surface of every rock and grain of sand is uniformly coated with a film of asphalt. The initial film thickness …

Construction Division Materials and Pavements Section

You can find all asphalt binder materials used on TxDOT projects in Item 300, “Asphalts, Oils, and Emulsions,” and a few special provisions to Item 300. Item 300, Table 18 (shown below) describes material applications and the typical materials used for that application. Table 18 Typical Material Uuse

Ergon Asphalt - Locations -Prime Coat - Conventional

This map contains all Ergon Asphalt locations that carry Prime Coat - Conventional products. Click a treatment on the right to find a sales professional in your area. Each Office Location entry will have contact information, address information, and Affiliate Locations

SECTION 10 ASPHALT EMULSION PRIME (AEP)

The emulsion distributor is the most important piece of equipment on a prime treat-ment project. Its purpose is to uniformly apply A EP to a surface at a specified rate and to maintain this application rate regardless of changes in grade or direction of move-ment. Calibration and adjustment of the asphalt distributor are described in ASTM D2995.

PRIME COAT AND TACK COAT AND THEIR PURPOSE IN …

Sep 25, 2017 · Prime coat serves this purpose of blocking the path of water which rises from the embankment due to capillary action. Prime coat also acts as a binder for Asphalt and CABC. However excess Prime ...

Bitumen – CONSPHALT

Class 170 is widely used in sprayed sealing and light asphalt applications to provide durability and fatigue resistance. It is also used to manufacture cutback bitumen, bitumen emulsions and modified bitumen. Cutback MC-70/250/800 (Philippines) Medium curing cutback asphalt used as a prime coat for road construction and waterproofing.

Fabrication of solvent-free asphalt emulsion prime with ...

Jan 10, 2020 · Asphalt pavement is typically composed of asphalt layer and inorganic base layer, as shown in Fig. 1.Prime coat is usually employed on the base surface as a preliminary treatment before the subsequent application of an asphalt surface treatment.

5. Surface Preparation (Prime and Tack Coats)

MC-30 Liquid Asphalt or CSS-1 Emulsified Asphalt as prime coat material. Airport Standard Specification 602-2.1 allows MC-30 or CMS-2S Emulsified Asphalt. Contract special provisions may allow other materials. When emulsified asphalt is used, it is diluted with an equal amount of water prior to application. Prime is normally paid for by weight.

Evaluation of structural benefits of prime coat ...

Apr 11, 2016 · This study was mainly focused on evaluating the structural benefits of a prime coat application that may positively affect pavement performance based on the pavement response measurements using Accelerated Pavement Testing (APT). Two full-scale field test sections were built using different interlayer conditions between Asphalt Concrete (AC) and base layer including prime coat …

Construction Procedure of Asphalt Concrete Paving and ...

8.2 Asphalt Prime Coat Application. 8.2.1 The approximate application rate of asphalt primer shall be 1.0 to 2.0 L/m, and shall be such that the amount applied will be completely absorbed by the surface being treated in a period of 24 hours.

SECTION 310 TACK AND PRIME COAT I. GENERAL

C. Prime Coat . 1. The rates of application of materials shall be determined in accordance with the method described in Education Series No. 12 of the Asphalt Institute entitled . Asphalt Surface Treatments Construction Techniques. 2. Asphalt prime coat shall not be placed when surfa ces are wet or when the air temperature is below 50°F.

Dpwh Standard Specifications on Prime Coat, Tack | Road ...

f BITUMINOUS PRIME COAT. - A prime coat is an application of a low viscosity asphalt to a granular. base in preparation for an initial layer (or surface course layer) of asphalt. The. purpose of the prime coat is; to coat and bond loose material particles on the. surface of the base, to harden or toughen the base surface to provide a work.

bitumen emulsion ss1- bitumen emulsion css1- bitumen emulsion-

Prime Coat. Prime coat typically is the application of low viscosity Bitumen over a granular base, preparing it for laying an asphalt mixture on it. A prime coat performs several important functions. Coats and bonds loose material particles on the surface of the …

7 Mix Placement and Compaction - IN.gov

application rate of asphalt materials and cover aggregate for prime coats. The asphalt material is not allowed to be applied on a wet surface, when the ambient temperature is below 50° F, or when other unsuitable conditions exist, unless approved by the Engineer. The rubblized

Tack Coats - Pavement Interactive - Pavement Interactive

Dilution. Sometimes emulsified asphalt tack coats are diluted with water to increase the total volume of liquid while maintaining the same volume of asphalt binder within the emulsion. This can help achieve a more uniform application without applying excessive amounts of asphalt binder. Dilution should be avoided if possible due to the various problems that can result from improper dilution (e ...

Section 413 Bituminous Tack Coat

Cationic emulsified asphalt CRS-2h or CRS-3 824.2.01 Asphalt cement of performance grade PG 58-22, PG 64-22 or PG 67-22 is used for bituminous tack coat in work performed in Section 400. Use cationic emulsified asphalt as a special application material only if directed by the Engineer.

401 DIVISION 400 ASPHALT PAVEMENTS SECTION 401 …

401.03(d), may be substituted in lieu of Prime Coat. Payment for this substitution will be made as Prime Coat. (c) Application of Tack Coat. When an asphalt course is to be laid on an asphalt or surface, a tack coat shall be applied prior to placing the course. The tack coat shall be applied by means

how to apply a tack coat | For Construction Pros

Jul 16, 2014 · For a tack coat application, a double or triple lap of the asphalt material from the spray bar to the road surface can be used. The amount of overlap will depend on the height of the spray bar ...

PRIME COAT AND TACK COAT AND THEIR PURPOSE IN …

Sep 25, 2017 · Prime coat serves this purpose of blocking the path of water which rises from the embankment due to capillary action. Prime coat also acts as a binder for Asphalt and CABC. However excess Prime ...

02720 Asphalt Paving - Caltrain

A. When pavement overlay or new pavement is to be constructed on an existing asphalt , , or brick surface, broom the existing surface clean prior to the application of prime coat. Repair holes and depressions in existing surfaces by removal to sound material and replacing with an asphalt-aggregate patching material.

Prime Coat Methods and Materials to Replace Cutback …

A prime coat is the application of a suitable bituminous binder applied to a non-bituminous granular base as a preliminary treatment before the application of a bituminous surfacing. The purpose of this research is to establish practical applications of successful prime coats to replace cutback asphalt. An

Prime Coat/Granular Sealing – McAsphalt

Prime Coat/Granular Sealing. A prime coat is a single application of either a specially formulated asphalt emulsion or a low-viscosity asphalt cutback. Their primary functions are to penetrate quickly into the granular surface and bind the material together, to partially waterproof the granular surface to prevent water erosion, to provide a ...

PennDOT LTAP technical NEW BITUMINOUS TACK …

The old specifications simply required an application rate of asphalt emulsion tack (AET) that left a uniform residue rate (RR) of between 0.02 and 0.07 gallons per square yard. In layman’s terms, asphalt emulsion is a combination of asphalt, water, and an emulsifying agent.

10 Seal Coat Placement - IN.gov

PRIME COATS A prime coat is the application of asphalt material to an aggregate, stabilized base, or similar absorptive base that is to be given an asphalt surface. The purpose of the prime coat is to act as a bonding agent between the base and the seal coat. Prime coat materials penetrate into the

Products - Asphalt Materials, Inc.

A tack coat is a light application of an asphalt emulsion designed to ensure a strong bond between asphalt pavement layers to prevent slippage or de-lamination of the hot mix overlay from the underlying layer caused by traffic and environmental factors. Tack coat is sprayed on a road surface before a layer of hot mix asphalt is placed. Products:

Bitumen – CONSPHALT

Class 170 is widely used in sprayed sealing and light asphalt applications to provide durability and fatigue resistance. It is also used to manufacture cutback bitumen, bitumen emulsions and modified bitumen. Cutback MC-70/250/800 (Philippines) Medium curing cutback asphalt used as a prime coat for road construction and waterproofing.

SECTION 10 ASPHALT EMULSION PRIME (AEP)

The emulsion distributor is the most important piece of equipment on a prime treat-ment project. Its purpose is to uniformly apply A EP to a surface at a specified rate and to maintain this application rate regardless of changes in grade or direction of move-ment. Calibration and adjustment of the asphalt distributor are described in ASTM D2995.

Surface Preparation – Pavement Interactive

Prime Coats. The graded subgrade or the top granular base layer can be prepared with a prime coat. A prime coat is a sprayed application of a cutback or asphalt emulsion applied to the surface of untreated subgrade or base layers in order to (Asphalt Institute, 2001 [1]):

Seal Coat and Surface Treatment Manual: Selection of Binder

Anchor: #i1001527 Asphalt Cement . Asphalt cements are classified based on their viscosity in poises (centimeter-gram-second units of dynamic viscosity) at 140 ° F. For example, if AC-5 or AC-10 is specified, the numerical value in these designations indicates the viscosity in hundreds of poises at 140 ° F. Additional letter designations such as “P” or “TR” as in AC-15P or AC-20-5TR ...

Tack Coat Guidelines 1-09 - Pacific GeoSource

asphalt. • Tack coat application rate. • Area that will be paved shown on the plans. For the purpose of estimating tack coat quantities, the designer should use Table 1 as a guide to determine the number of layers in which hot mix asphalt will be placed. For new construction, tack coat is not required for hot mix asphalt placed over aggregate

US8158696B2 - Asphalt prime coat - Google Patents

An environmentally friendly composition and related methods of use and production of an asphalt prime coat, suitable for application to a base road structure, are described herein. The composition includes an asphaltine, and an emulsion of a natural hydrocarbon resin mixed with a penetrating component, which can include a very limited quantity an organic solvent, or can omit organic solvents.

PART 00700 - WEARING SURFACES Section 00705 - …

Section 00705 - Emulsified Asphalt Prime Coat and Emulsified Asphalt Fog Coat Description - This work consists of applying asphalt, with or without aggregate cover materials, to a prepared surface. The prime coat referred to in these Specifications is a penetration treatment to aggregate surfaces to coat and bind the material into a hard surface.

MC-70 - Best Asphalt Manufacturers and Asphalt Suppliers

Product Description. Description: Cutback MC 70 containing minimum 55% Bitumen, is commonly used as a Prime Coating and Maintenance Mixing. It is homogeneous and will not foam (as observed visually) when heated to application temperature.

March 2018 No. 805(I) SPECIFICATIONS FOR APPLYING …

7.1 Prime Coat The Department will supply emulsified asphalt for use as a prime coat. The prime coat shall be applied to the prepared base at such locations and rates of application as are specified by the Engineer. SS-1 when used as prime shall be road mixed into th e top 25 - …

PART V -- ASPHALTIC PAVEMENTS

coat uniformly and accurately across the paving width and monitor the rate of spray. Determine the tack coat application rate by road conditions and mix type. Meet the undiluted asphalt emulsion application rate in Table 501-1. Tack coat application rates above the minimum specified in Table 501.1 must be approved by the Engineer.

Prime | Austroads

A prime is an initial treatment, being an application of a primer to a prepared granular base ( Figure 3.2 ). It usually consists of a bitumen and cutter oil or specially formulated bitumen emulsion primer and is placed without a cover aggregate. Penetration of the prime into the base varies, but for granular base materials it is typically 5 to ...