### **ITEM P-606 ADHESIVE COMPOUNDS, TWO-COMPONENT FOR SEALING WIRE AND LIGHTS IN PAVEMENT**

DESCRIPTION

**606-1.1. ** This specification covers two types of material; a liquid
suitable for sealing electrical wire in saw cuts in pavement and for
sealing light fixtures or bases in pavement, and a paste suitable for
embedding light fixtures in the pavement. Both types of material are
two‑component filled formulas with the characteristics specified in
paragraph 606‑2.4. Materials supplied for use with bituminous concrete
pavements must be formulated so they are compatible with the bituminous
concrete.

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> **If the material is to be used on bituminous concrete pavements and
> it is not formulated for this use, cracking and separation of the
> material from sawed wireway kerfs and around light fixtures may
> occur.**

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EQUIPMENT AND MATERIALS

**606‑2.1  CURING**. When prewarmed to 77°F (25°C), mixed, and placed in
accordance with manufacturer\'s directions, the materials shall cure at
temperatures of 45°F (7°C) or above without the application of external
heat.

**606-2.2 STORAGE**.  The adhesive components shall not be stored at
temperatures over 86°F (30°C).

**606-2.3 CAUTION**.  Installation and use shall be in accordance with
the manufacturer\'s recommended procedures. Avoid prolonged or repeated
contact with skin.  In case of contact, wash with soap and flush with
water.  If taken internally, call doctor.  Keep away from heat or
flame.  Avoid vapor.  Use in well‑ventilated areas.  Keep in cool
place.  Keep away from children.

**606-2.4 CHARACTERISTICS**.  When mixed and cured in accordance with
the manufacturer\'s directions, the materials shall have the following
properties shown in Table 1.

SAMPLING, INSPECTION, AND TEST PROCEDURES

**606‑3.1  TENSILE PROPERTIES.**  Tests for tensile strength and
elongation shall be conducted in accordance with ASTM D 638.

**606-3.2 EXPANSION.**  Tests for coefficients of linear and cubical
expansion shall be conducted in accordance with ASTM D 1168, Method B,
except that mercury shall be used instead of glycerine.  The test
specimen(s) shall be mixed in the proportions specified by the
manufacturer, and cured in a glass tub approximately 2 inches (50 mm)
long by 3/8 inch (9 mm) in diameter.  The interior of the tube shall be
precoated with a silicone mold release agent.  The hardened sample shall
be removed from the tube and aged at room temperature for 1 week before
conducting the test.  The test temperature range shall be from 35°F
(2°C) to 140°F (60°C).

**606-3.3 TEST FOR DIELECTRIC STRENGTH.**  Test for dielectric strength
shall be conducted in accordance with ASTM D 149 for sealing compounds
to be furnished for sealing electrical wires in pavement.

**TABLE 1. PROPERTY REQUIREMENTS**

  ---------------------- ---------------- ---------------- ----------------
  **Physical or          **Minimum**      **Maximum**      **ASTM Method**
  Electrical Property**                                    

                                                           

  Tensile                                                  

  Portland Cement        1,000 psi                         D 638
  Concrete                                                 

                         (70 kg/sq.cm)                     

  Bituminous Concrete    500 psi                           

                         (35 kg/sq.cm)                     

                                                           

  Elongation                                               

  Portland Cement                         \\1\\            D 638
  Concrete                                                 

  Bituminous Concrete    50%                               D 638

  Coef. of cub. exp.                                       

  cu. cm/cu. cm/degree C 0.00090          0.00120          D 1168

  Coef. of lin. exp.                                       

  cm/cm/degree C         0.00030          0.00040          D 1168

                                                           

  Dielectric strength,                                     

  short time test        350 volts/mil.                    D 149

  Arc resistance         125 secs.                         D 495

  Adhesion to steel      1,000 psi                         

                         (70 kg/sq.cm)                     

                                                           

  Adhesion to portland                                     

  cement concrete        200 psi                           

                         (14 kg/sq.cm)                     

                                                           

  Adhesion to asphalt                                      

  concrete               (no test                          
                         available)                        

                                                           

  \\1\\ 20% or more                                        
  (without filler) for                                     
  formulations to be                                       
  supplied for areas                                       
  subject to freezing.                                     
  ---------------------- ---------------- ---------------- ----------------

**606-3.4 TEST FOR ARC RESISTANCE.**  Test for arc resistance shall be
conducted in accordance with ASTM D 495 for sealing compounds to be
furnished for sealing electrical wires in pavement.

**606-3.5 TEST FOR ADHESION TO STEEL.**  The ends of two smooth, clean,
steel specimens of convenient size (1 inch by 1 inch by 6 inches) (25 by
25 by 150 mm) would be satisfactory when bonded together with adhesive
mixture and allowed to cure at room temperature for a period of time to
meet formulation requirements and then tested to failure on a Riehle (or
similar) tensile tester.  The thickness of adhesive to be tested shall
be 1/4 inch (6 mm).

**606-3.6 ADHESION TO PORTLAND CEMENT CONCRETE**

**a. Concrete Test Block Preparation.**  The aggregate grading shall be
as shown in Table 2.

The coarse aggregate shall consist of crushed rock having a minimum of
75% of the particles with at least one fractured face and having a water
absorption of not more than 1.5%.  The fine aggregate shall consist of
crushed sand manufactured from the same parent rock as the coarse
aggregate.  The concrete shall have a water‑cement ratio of 5.5 gallons
(21 liters) of water per bag of cement, a cement factor of 6, plus or
minus 0.5, bags of cement per cubic yard (0.76 cubic meter) of concrete,
and a slump of 2‑1/2 inches, plus or minus 1/2 inch (60 mm plus or minus
12 mm).  The ratio of fine aggregate to total aggregate shall be
approximately 40% by solid volume.  The air content shall be 5.0%, plus
or minus 0.5%, and it shall be obtained by the addition to the batch of
an air‑entraining admixture such as vinsol resin.  The mold shall be of
metal and shall be provided with a metal base plate.  Means shall be
provided for securing the base plate to the mold.  The assembled mold
and base plate shall be watertight and shall be oiled with mineral oil
before use.  The inside measurement of the mold shall be such that
several 1‑inch by 2‑inch by 3‑inch (25 by 50 by 75 mm) test blocks can
be cut from the specimen with a concrete saw having a diamond blade. 
The concrete shall be prepared and cured in accordance with ASTM C 192.

**TABLE 2. AGGREGATE FOR BOND TEST BLOCKS**

  ---------------------- --------------------------- --------------------
  **Type**               **Sieve Size**              **Percent Passing**

                                                     

  Coarse Aggregate       3/4 inch (19.0 mm)          97 to 100

                         1/2 inch (12.5 mm)          63 to 69

                         3/8 inch (9.5 mm)           30 to 36

                         No. 4 (4.75 mm)             0 to 3

                                                     

  Fine Aggregate         No. 4 (4.75 mm)             100

                         No. 8 (2.36 mm)             82 to 88

                         No. 16 (1.18 mm)            60 to 70

                         No. 30 (600 micro‑m)        40 to 50

                         No. 50 (300 micro‑m)        16 to 26

                         No. 100 (150 micro‑m)       5 to 9
  ---------------------- --------------------------- --------------------

**b. Bond Test.**  Prior to use, oven‑dry the test blocks to constant
weight at a temperature of 220 to 230°F (104°C to 110°C), cool to room
temperature, 73.4 plus or minus 3°F (23°C plus or minus 1.6°C), in a
desiccator, and clean the surface of the blocks of film or powder by
vigorous brushing with a stiff‑bristled fiber brush.  Two test blocks
shall be bonded together on the 1‑inch by 3‑inch (25 by 75 mm) sawed
face with the adhesive mixture and allowed to cure at room temperature
for a period of time to meet formulation requirements and then tested to
failure in a Riehle (or similar) tensile tester.  The thickness of the
adhesive to be tested shall be 1/4 inch (6 mm).

**606-3.7 COMPATIBILITY WITH ASPHALT CONCRETE.**  Test for compatibility
with asphalt in accordance with ASTM D 5329.

**606-3.8 ADHESIVE COMPOUNDS - CONTRACTOR\'S RESPONSIBILITY.**  The
Contractor shall furnish the vendor\'s certified test reports for each
batch of material delivered to the project.  The report shall certify
that the material meets specification requirements and is suitable for
use with **\[portland cement concrete\] \[bituminous concrete\]**
pavements.  The report shall be delivered to the Engineer before
permission is granted for use of the material.  In addition the
Contractor shall obtain a statement from the supplier or manufacturer
that guarantees the material for one year.  The supplier or manufacturer
shall furnish evidence that the material has performed satisfactorily on
other projects.

**606-3.9 APPLICATION.**  Adhesive shall be applied on a dry, clean
surface, free of grease, dust, and other loose particles.  The method of
mixing and application shall be in strict accordance with the
manufacturer\'s recommendations.

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> **Installation methods such as surface preparation, mixing ratios, and
> pot life are as important to satisfactory performance as the
> properties of the material itself.  Therefore, the Engineer may wish
> to require a manufacturer\'s representative to be present during the
> initial installation of the material to ensure the installation
> procedures are in accordance with the manufacturer\'s directions.**

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METHOD OF MEASUREMENT

**606‑4.1** The adhesive compound shall be measured by the **\[pound
(kg)\] \[gallon (l)\]** of adhesive as specified, in place, complete and
accepted.  When required in the installation of an in‑runway lighting
system or portion thereof, no measurement will be made for direct
payment of adhesive, as the cost of furnishing and installing shall be
considered as a subsidiary obligation in the completion of the
installation.

BASIS OF PAYMENT

**606-5.1**  Payment shall be made, where applicable, at the contract
unit price per **\[pound (kg)\] \[gallon (l)\]** for the adhesive.  This
price shall be full compensation for furnishing all materials, and for
all preparation, delivering, and application of these materials, and for
all labor, equipment, tools, and incidentals necessary to complete the
item.

Item P‑606‑5.1 Adhesive Compound ‑ per \[pound (kg)\] \[gallon (l)\]

TESTING REQUIREMENTS

ASTM C 192 Making and Curing Concrete Compression and Flexure Test
Specimens in the Laboratory.

ASTM D 149 Tests for Dielectric Breakdown Voltage and Dielectric
Strength of Electrical Insulating Materials at Commercial Power
Frequencies.

ASTM D 495 Test for High‑Voltage, Low‑Current, Dry Arc Resistance of
Solid Electrical Insulation Materials

ASTM D 638 Test for Tensile Properties of Plastics

ASTM D 1168 Test for Hydrocarbon Waxes Used for Electrical Insulation

ASTM D 5329 Joint Sealants, Hot‑poured, for Concrete and Asphalt
Pavements

**END OF ITEM P-606**