SECTION 02785
PAVEMENT SEALING SPECIFICATION
PART 1 GENERAL
1.01 SECTION INCLUDES
A. Refined coal tar emulsion sealcoat slurry over [ [ new ] [ and ] [ aged ] ]
asphaltic concrete paving.
1.02 RELATED SECTIONS
A. [ Section 02740 Asphaltic Concrete Paving ]
B. [ Section 02765 Pavement Marking ]
C. [ Section 02950 Repairing Asphaltic Concrete Pavements ]
D. [ Section 02975 Crack Sealing ]
E. [ ]
1.03 REFERENCES
A. Federal Specifications (FS)
1. R-P 355e Pitch, Coal Tar Emulsion (Coating for Bituminous Pavements)
B. American Society for Testing Materials (ASTM)
1. C 136 Method for Sieve Analysis of Fine and Coarse Aggregates
2. D 490 Specification for Road Tar
3. D 2939 Method for Testing Emulsified Bitumens Used as Protective Coatings
4. D 3320 Standard Specification for Emulsified Coal-Tar Pitch (Mineral Colloid Type)
5. D 5727 Standard Specification for Emulsified Refined Coal-Tar (Mineral Colloid Type)
1.04 SYSTEM DESCRIPTION
[ A. Provide primer and two (2) applications of the coating (refined coal tar emulsion
slurry) in all areas. ]
[ B. Provide two (2) applications of the coating (refined coal tar emulsion slurry) in
all areas. ]
[ C. Provide third coat in high traffic areas as shown in schedule and on drawings.]
1.05 SUBMITTALS
A. Product Data
1. Submit manufacturer's printed Product Data Sheet.
1.06 PROJECT/SITE CONDITIONS
A. ENVIRONMENTAL REQUIREMENTS
1. Apply coating when pavement temperature is a least fifty (50) degrees F. and air
temperature is fifty (50) degrees F. and rising.
2. Apply coating during dry weather and when rain is not anticipated within eight (8)
hours after application is completed.
PART 2 PRODUCTS
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THE SPECIFIER MAY CHOOSE TO HAVE A CLOSED PROPRIETARY SPECIFICATION BY NAMING TWO
ADDITIONAL SEALER MANUFACTURERS WHOSE SEALER MEETS THE SPECIFICATION REQUIREMENTS AND
PLACING IN [ B ] AND [ C ]
"OR"
THE SPECIFIER MAY CHOOSE TO HAVE A CLOSED PROPRIETARY SPECIFICATION [ 1 ] "
OR" AN OPEN PROPRIETARY SPECIFICATION [ 2 ] BY SELECTING ONE OF THE FOLLOWING:
1.[ B. No substitutions allowed. ]
2.[ C. No other material will be acceptable unless approved by Architect/Engineer in
writing (10) ten days prior to Bid Date. ]
"OR"
THE SPECIFIER MAY CHOOSE TO INCLUDE:
ALTERNATE NUMBER ONE (1)
NEYRA INDUSTRIES, INC., CINCINNATI, OHIO: JENNITE®
JENNITE® PROVIDES THE TOUGHEST COATING AVAILABLE WITH ITS RUBBERIZED RESINOUS BINDER
AND UNIQUE BONDING AGENT. JENNITE®
EXCEEDS THE REQUIREMENTS OF FEDERAL SPECIFICATION R-P 355e. A TWO (2) YEAR DUAL
WARRANTY FROM THE MANUFACTURER AND CONTRACTOR IS AVAILABLE WITH JENNITE®. CERTIFICATE OF
AUTHENTICITY FROM THE MANUFACTURER IS AVAILABLE. IT STATES JENNITE® WAS USED ON THE
PROJECT.
THE USE OF THE ALTERNATE WILL REQUIRE THE FOLLOWING CHANGES IN THE PROJECT MANUAL
DOCUMENTS:
BIDDING REQUIREMENTS:
INSTRUCTION TO BIDDERS
BID FORM
CONTRACT FORMS
AGREEMENT
SPECIFICATIONS 01030
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2.01 MANUFACTURER
A. Neyra Industries, Inc., Cincinnati, Ohio: Tarconite®
2.02 MATERIALS
A. Sealer: Tarconite®
1. An emulsion of refined coal tar specifically formulated to extend the pavement life.
B. Crack Sealant: Thermo-Seal PLS®
1. Hot applied, elastomeric type crack sealant compatible with pavement coating.
C. Pavement Primer: Polyprime®
1. Acrylic based, primer compatible with pavement coating.
D. Oil Spot Primer: Neyra Oil Seal®
1. Water based acrylic oil spot primer compatible with pavement coating.
E. Sand: As recommended in printed data sheets by sealer manufacturer.
1. Washed dry silica sand free of dust, trash, clay, organic materials or other
contaminants.
2. Gradation: To have an American Foundry Society grain fineness number that is no less
than fifty (50) and no more than seventy (70), when tested in accordance with ASTM C 136.
F. Mixing Water
1. Potable and free from harmful soluble salts.
2. Temperature of the water: minimum fifty degrees (50) F.
2.03 EQUIPMENT
A. Use equipment that keeps the mixture homogeneous at all times and is capable of
applying required coating weights evenly over entire width of application mechanism to
provide a uniformly coated surface.
2.04 MIXES
A. Tarconite®: Add five (5) pounds of sand to the refined coal tar emulsion, and mix
with power equipment to a homogeneous coating.
B. Tarconite®: Add water to the coating mix as required for application, quantity not
to exceed thirty five (35) percent of refined coal tar emulsion.
PART 3 EXECUTION
3.01 EXAMINATION
A. Inspect existing pavement surfaces for conditions and defects that will adversely
affect quality of work, and which cannot be put into an acceptable condition through
normal preparatory work as specified.
B. Do not place coating over unsound oil spots softened by fuel or oil. If this
condition exists, notify Architect/Engineer.
C. Starting installation constitutes Contractor's acceptance of surface as suitable for
installation.
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SPECIFIER SHOULD SELECT ONE OR BOTH SECTIONS UNDER PREPARATION BASED ON JOB
REQUIREMENTS. (AGED/NEW PAVEMENT)
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3.02 PREPARATION - AGED PAVEMENT
[ A. Repairing Asphaltic Concrete Pavement: Repair areas shown in schedule according to
Section 02950. ]
[ B. Crack Sealing: Apply crack sealant as detailed in Section 02975. ]
C. Cleaning
1. Clean pavement surface prior to applying primer coat and coating.
D. Protection
1. Protect adjacent curbs, walks, fences, and other items from receiving primer and
coating.
E. Oil Spots
1. Clean oil spots and treat with oil spot primer.
F. Priming
1. Apply a diluted mixture of one (1) part primer and two (2) parts water at the rate
of 0.03 to 0.06 gallons per square yard.
3.03 PREPARATION - NEW PAVEMENT
A. Curing
1. Allow new asphalt to cure at least thirty (30) days before applying pavement
coating.
B. Cleaning
1. Clean pavement surface prior to applying primer coat and coating.
C. Protection
1. Protect adjacent curbs, walks, fences, and other items from receiving primer and
coating.
[ D. Oil Spots
1. Clean oil spots and treat with oil spot primer.]
[ F. Priming
1. Apply a diluted mixture of one (1) part primer and two (2) parts water at the rate
of 0.03 to 0.06 gallons per square yard. ]
3.04 APPLICATION
A. Apply all coats uniformly at a rate of 0.14 - 0.17 gallons per square yard per coat
using mixed and diluted material.
B. Allow each coat to cure sufficiently to take traffic without scuffing.
C. Allow final coat to cure a minimum of twenty four (24) hours under good drying
conditions before allowing traffic.
3.05 CLEANING AFTER APPLICATION
A. Remove primer and coating from surfaces other than those requiring primer and
coating.
3.06 PROTECTION
A. Barricade coated area until the coating has dried sufficiently for traffic.
3.07 SCHEDULE
END OF SECTION
