705  CONCRETE INCIDENTALS

705.01  Fiber Reinforced Polymer (FRP) Dowel Bars.  Furnish round and straight fiber reinforced polymer (FRP) dowel bars.  Ensure that the resin used to manufacture the FRP bars consists of an acrylic modified epoxy resin with a minimum of 5 percent and a maximum of 7 percent tensile elongation at break.  Ensure that the minimum glass fiber content is 70 percent by weight.  Furnish dowels of a type meeting the dimensional requirements of the standard construction drawings Provide  certified test data according to 101.03 with each shipment.

705.03  Preformed Fillers.  Furnish preformed fillers according to AASHTO M 153 or AASHTO M 213, with the following modification:

5.7  For materials manufactured as described in 4.1.1 and 4.1.2, ensure that the producer certifies to the Engineer that the asphalt content is at least 35 percent by weight of the filler.

Furnish materials according to the Department’s Qualified Products List (QPL).

705.04  Hot Applied Joint Sealer,   Furnish hot applied joint sealer conforming to ASTM D 6690, Type II   Use this material as the primer for Type 3 membrane.

705.05  Burlap Cloth.  Furnish burlap cloth according to AASHTO M 182, Class 2. 

705.06  Sheet Materials for Concrete Curing.  Furnish sheet materials conforming to AASHTO M 171 for moisture loss and reflectance only. 

705.07  Liquid Membrane-Forming Compounds for Curing Concrete.  Furnish liquid membrane-forming compounds conforming to ASTM C 309, with the following modification:

5.3   In addition - liquid membrane-forming compounds will have a minimum solids content of  25% . 

6.1 Water Retention-  Liquid membrane-forming compound, when tested in accordance with 10.1, shall have a water loss of  not more than: 0.15 kg/m2 @ 24 hours and 0.40 kg/m2 @ 72 hours.

 7.1  Reflectance -  Type 2 curing compound  will  have a minimum daylight reflectance of 65%.

10.4 In addition -  Mix Type 2 curing compound until uniform in color and consistency, and then pour into a glass graduated cylinder (Kimax 150 ml) to the 150 ml mark.  The Type 2 curing compound should have a rate of settling such that its uniformly white portion as visible to the eye is not less than 145 ml at 2 hours and not less than 125 ml at 24 hours after filling the Kimax cylinder .  The test should be performed at 73.0 ± 3.5 oF (23 ± 2 oC). During this test the glass cylinder should be stoppered and left undisturbed.        

11.1  In addition,  Equip the containers for Type 2 white pigmented liquid membrane forming compounds with mechanical agitators.  Assign each container in any batch or lot, a number as the container is being filled. 

Furnish materials according to the Department’s Qualified Products List (QPL)

705.10  Air-Entraining Admixtures.  Provide air-entraining admixtures conforming to AASHTO M 154.  Conform to Supplement 1001 for approval. 

Furnish materials according to the Department’s Qualified Products List (QPL)

705.11  Preformed Elastomeric Compression Joint Seal for Concrete.

A.      General.  Provide preformed elastomeric compression joint seal conforming to ASTM D 2628, with the following modifications:

5.1  Ensure that the size and design is as shown on the plans.

7.2  The Engineer will perform inspection at the project site. 

7.3  If sampled, provide a minimum of 3 feet (1.0 m), with all manufacturers’ markings,

12.1  In addition, ensure that markings are every 1 foot (305 mm).  Use lubricants recommended by the seal manufacturer to install preformed compression seals.

B.      Qualification.  Obtain Department approval of each design, shape, width, depth, web, and shell thickness before use.  Submit drawings of the seals showing all dimensions and dimension tolerances and weight per foot (meter) with the request for approval. 

Furnish materials according to the Department’s Qualified Products List (QPL)

705.12  Chemical Admixture for Concrete.  Provide chemical admixtures conforming to ASTM C 494.  Ensure that the minimum relative durability factor is 90. 

Furnish materials according to the Department’s Qualified Products List (QPL)

 

705.15  High Molecular Weight Methacrylate (HMWM) Resin.  Provide low viscosity, non-fuming high molecular weight methacrylate (HMWM) resin conforming to the following:

Viscosity

Less than 25 cps (Brookfield viscometer, Model RVT with UL adaptor or Model LVF, # spindle and UL adaptor C @ 77 ºF (25 ºC) (ASTM D 2849)

Density

Greater than 8.4 lb/gal Ca 77 ºF (25 ºC) (ASTM D 2849)

Flash Point

Greater than 200 ºF (93 ºC) (PenskyMartens CC)
(ASTM D 93)

Vapor Pressure

Less than 1.0 mm Hg C @ 77 ºF (25 ºC) (ASTM D 323)

TG (DSC)

Greater than 135 ºF (58 ºC) (ASTM D3418)

Shelf Life

Must be 1 year minimum at manufacturers recommended environmental considerations

Gel Time

Greater than 40 min, 100 g mass (ASTM D 2471)
(thin film)

Percent Solids

Greater than 90% by weight

Bond Strength

Greater than 1500 psi (10.5 MPa) (ASTM C 882)

 

Furnish materials according to the Department’s Qualified Products List (QPL)

705.20  Non Shrink, Non Metallic Materials.  Provide anchoring materials for installing anchor bolts, dowels and similar material in concrete which are non-shrink, 100% solids, two part (resin and hardener), fast setting, and moisture insensitive.

A.          Provide certified test data according to 101.03 showing compliance with the following requirements.  Include manufacturer’s installation and application requirements.

 

Test Description

Specification

 Requirements

 Notes

Bond  Strength (dry)

ASTM  C882

2 day, Min. 1800 psi

Average of three samples (1)

Bond  Strength after subjected to 300 cycles freeze/thaw testing

ASTM  C882 specimens subjected to ASTM C666 Method B testing and the tested conforming to C882

Min. 1600 psi

Average of three samples (1)

Heat Deflection

ASTM  D648

7day, Min. 130 o F

 

Linear Coefficient of Shrinkage

ASTM C531

% Max. 0.005

 

Pullout  Strength Test  (dry )

See Procedure below

24 hours,  Min. Load 22500 lbs

Average of three cylinders in dry condition

Pullout Strength Test   (wet )

See Procedure below

24 hours,  Min. Load 22500 lbs

Average of  three cylinders  in wet condition

(1)  a total of six samples will be made under C882.  Three of the C882 samples will be tested under C666 Method B and those samples tested. 

 

Pullout Strength Test Procedure.  Perform pullout strength tests under dry and wet conditions as follows:

1.      Dry Condition (epoxy steel) 

Cast three concrete test blocks or cylinders, a minimum of 6 inches (150 mm) in width or diameter by 12 inch (300 mm) in depth.  Use concrete with a compressive strength of 4000+/- 500 psi at 28-days   Center a 6 3/4 inch (170 mm) deep hole, drilled the diameter required by the manufacturer’s requirements for installing a No. 6 (20M) rebar, in the block or cylinder by drilling or forming.  Dry the hole surfaces and clean the holes following manufacturer instructions.  Fill the hole with adhesive materials according to manufacturer recommendations.  Insert a No. 6 (20M) deformed reinforcing bar 30 inches (760 mm) long, cleaned and degreased, into the hole.  Hold and center the bar perpendicular to the concrete surface in the grout-filled hole during the curing period. 

2.      Wet Condition (epoxy steel)

Cast three concrete test blocks or cylinders, a minimum of 6 inches (150 mm) in width or diameter by 12 inch (300 mm)  in depth.  Use concrete with a compressive strength of 4000+/- 500 psi at 28-days.  Center a 6-3/4 inch (170 mm) deep hole, drilled the diameter required by the manufacturer’s requirements for installing a No. 6 (20M) rebar, in the blocks or cylinders by drilling or forming.  Wet the hole’s surfaces prior to applying the anchoring material by filling the hole with water and letting stand for five minutes.  Turn the samples over for two minutes to allow the excess water to drain from the hole, Turn all samples over to the upright positions and immediately fill hole with adhesive materials according to manufacturer recommendations.  Insert a No. 6 (20M) deformed reinforcing bar 30 inches (760 mm) long, cleaned and degreased into the hole.  Hold and center the bar perpendicular to the concrete surface in the adhesive-filled hole during the curing period. 

Cure Period.   Cure the specimen at 77 ± 5 °F (25 ± 3 °C) for 24 hours. 

Pullout Strength Test  Apply an axial load to the bar at a rate of 1/2 inch (13 mm) per minute until the bar pulls out of the specimen, or the concrete block or cylinder cracks or spalls.  Record the failure mode and applied load.

B.    Epoxy materials will also conform to ASTM C881,  Type IV, Grade 3, Class A, B or C.

Supply the anchoring material in non-reactive containers and with their MSDS.  Label containers with the name of the product, the manufacturer, the shelf life expiration date, the batch number, quantity, and provide application instructions.

Maintain storage areas between 40 and 100 °F (5 and 38 °C).

Only use materials on the Department’s Qualified Products List (QPL).

705.21  Quick Setting Concrete Mortar.  Provide prepackaged mortar material that requires the addition of water only.

Only use materials meeting the following criteria:

     A.     Capable of being extended 50 percent by dry mortar weight with aggregate meeting the following requirements:

   (a)     Gradation requirements of Table 703.01-1 for No. 8, 89, 9, or a combination thereof.

   (b)     AASHTO M 43, Maximum Passing No. 200 (75 mm) sieve - Not to exceed 0.2 percent.

   (c)     AASHTO T 84 and T 85, Absorption - Not more than 2 percent.

   (d)     AASHTO T 104, Soundness Loss - Not more than 2 percent.

   1.      Ensure that the material meets the following requirements:

Test

Type 1

Type 2

Compressive Strength ASTM C 109[2]

psi (MPa)

@ 1 Hour

100 (0.7)

2000 (14)

 

@ 3 Hour

250 (1.7)

---

 

@ 24 Hours

2000 (14)

5000 (34)

 

@ 7 Days

---

7000 (48)

Compressive Strength ASTM C 39[1],[2]

psi (MPa)

@ 1 Hour

100 (0.7)

(2000) (14)

 

@ 3 Hour

150 (1.0)

---

 

@ 24 Hours

1000 (10)

3500 (24)

 

@ 7 Days

---

6000 (41)

Initial Set Time (min) ASTM C 266[2]

5 Minutes

10 Minutes

Bond Strength, ASTM C 882[1]

psi (MPa)

@ 24 Hours

1000 (7)

1000 (7)

 

@ 7 Days

1500 (11)

1500 (11)

Flexural Strength ASTM C 78[1]

 

 

psi (MPa)

@ 4 Hour

---

200 (1.4)

 

@ 3 Day

650 (4.5)

500 (3.4)

Freeze and Thaw ASTM C 666 (use either Procedure B or A) [1]

Procedure B (350 Cycles)
Durability Factor

80%

80%

Procedure A (300 Cycles)
Durability Factor

79%

79%

[1]  Extend test specimens 50 percent by dry mortar weight with aggregate.

[2]  Test the mortar as received with the addition of water.  Ensure that the amount of water is designated on the packing container by the manufacturer.

 

B.           Prequalify the material by placing and having the material evaluated conforming to Supplement 1070 for 3 years.  At the end of the 3 year rating the material will meet the following criteria:

          1.       Percentage debonding/delamination ≤ 5%

          2.       Percentage spalling ≤ 5%

          3.       Mid panel average crack width ≤ 1/16 inch (1.6 mm) and total length of mid panel cracks ≤ 20 feet (6.1 m) total length

          4.       Edge Cracking/debonding average crack width  ≤ 1/16 inch (1.6 mm) and total length of cracks ≤ 12 feet (3.6 m)

          Furnish the Laboratory with a certified copy of test results from a recognized laboratory showing compliance with the requirements of this specification for item A.  Furnish the laboratory written documentation of the method of surface preparation and any primers, adhesives, or activators used in the field test.  Those will become requirements of the material system for subsequent approval or use. A recognized laboratory is one that is regularly inspected by the Cement and Concrete Reference Laboratory of the National Institute of Standards and Technology.

Provide quick setting concrete mortar packaged in strong moisture resistant paper bags or other suitable containers capable of withstanding shipping, normal handling, and storage without breakage.  The package will protect the material from deterioration when stored in a dry condition for a period of 1 year.  Each package or container must display information regarding the minimum nominal yield and instructions for mixing.  Calculate volumetric yield determinations using the manufacturers’ recommended water content.

Furnish materials listed on the Department’s Qualified Products List (QPL).

 

705.22 Nonshrink Mortar.  Provide nonshrink mortar conforming to ASTM C 1107, with the following modification:

9.1  In addition, ensure that the fluidity of the grout at the maximum water content is at least equal to a flowable mixture as defined in ASTM C 827, Section 8.2.2 and that the minimum flow is 125 @ 5 drops of the flow table in 3 seconds.

Furnish materials according to the Department’s  Approved materials list.

705.23 Concrete Sealers

A. Provide an Epoxy-Urethane sealer incorporating a two component cross linked urethane and conforming to the following requirements:

1. Absorption - ASTM C642 (non-air entrained concrete). Proportion and mix concrete according to ASTM C672. Sealed concrete, under total immersion, will not exceed 1.0% after 48 hours or 2.0% after 50 days

2. Scaling Resistance - ASTM C672 A rating of “No  scaling” after 100 cycles on the sealed concrete (non-air entrained concrete) as compared to "Severe Scaling' on untreated concrete.

3. NCHRP 244, Series 11 - Cube Test

     3.1 Weight gain - not to exceed 25% of untreated cube

     3.2 Absorbed chloride - not to exceed 25% of untreated cube

4. NCHRP 244, Series IV - Southern Exposure

     4.1 Absorbed chloride - not to exceed 10% of untreated concrete

Record and report the application rate (square footage/gallon) of sealer during the tests.

Provide test data from an approved independent testing facility. The sealer manufacturer funds the testing costs.

Furnish the test data, a one quart (one liter) sample, and the MSDS to the Office of Materials Management (OMM).  OMM will determine material acceptance. 

Furnish materials according to the Department’s Qualified Products List (QPL)

B. Provide an Non-Epoxy sealer conforming to the following requirements:

1. Absorption - ASTM C642 (non-air entrained concrete). Proportion and mix concrete according  to ASTM C672. Sealed concrete, under total  immersion, will not exceed 1.0% after 48 hours or 2.0% after 50 days

2. Scaling Resistance - ASTM C672 A rating of “No  scaling” after 100 cycles on the sealed concrete (non-air entrained concrete) as compared to “Severe Scaling” on untreated concrete.

3. NCHRP 244, Series 11 - Cube Test

     3.1 Weight gain - not to exceed 25% of untreated cube

     3.2 Absorbed chloride - not to exceed 25% of untreated cube

4. NCHRP 244, Series IV - Southern Exposure

     4.1 Absorbed chloride - not to exceed 10% of untreated concrete

Record and report the application rate (square footage/gallon) of sealer during the tests.

Provide test data from an approved independent testing facility. The sealer manufacturer funds the testing costs.

Furnish the test data, a one quart (one liter) sample, and the MSDS to the OMM.  OMM will determine material acceptance. 

Furnish materials according to the Department’s Qualified Products List (QPL).

705.24 Soluble Reactive Silicate Provide a soluble reactive silicate (SRS) that is a blend of Na/K/FlxSiOx (sodium, potassium, fluoro or other silicate), surfactants, polymers, and stabilizers capable of thoroughly saturating and sealing concrete. The treatment system will meet the following performance requirements:

A. Scaling Resistance - Treated concrete will pass ASTM C 672, Scaling Resistance test with a rating of 'No Scaling' after 100 cycles (non-air entrained concrete) as compared to "Severe Scaling' on untreated concrete.

B. Absorption - The absorption of treated concrete under total immersion will not exceed 1.0 percent after 48 hours or 2.0 percent after 50 days (ASTM C 642, non-air entrained concrete). Concrete should be proportioned and mixed in accordance with ASTM C 672.

C. Skid resistance - The skid resistance of treated concrete pavement will not be reduced by more than 10 percent as compared to the same untreated pavement. ASTM E 274 using ASTM E 501 ribbed tire at 40 mph (64 kph), five test average.

D. AASHTO T 259 as modified. The standard T 259 Resistance of Concrete to Chloride Ion Penetration will; be modified as follows:

In addition to section 3.1,  intentionally break the specimens so they  have a full depth crack through the middle of the slab.

Install section 3.2 dams around the perimeter of the re-assembled, cracked, concrete specimens.  Caulk around the perimeter of the dam to assure that only the crack and the concrete will allow water to pass through or be absorbed. After assembly, measure the crack width at three locations and report the crack width. 

Perform the ponding of 3.4 until the 3% solution comes through the specimen’s crack. Record and report the time required for the solution to appear through the specimen’s crack.  Remove the solution from the specimens and re-dry according to 3.3 (T 259).

After drying apply the SRS to the specimen’s top surface at the manufacturer’s recommended rate of application. Record and report the rate of application.  Air dry the SRS coated dammed sample specimens for 7 days. After 7 days, re perform the ponding with 3% chloride solution until solution comes through the specimen’s crack or 14 days. Record the time the till the ponded solution comes through the crack.

Acceptable SRS materials will have a value of 2 or more when the ponding time before SRS application is divided into the ponding time after SRS application. 

Sections 3.5, 3,6, 4.1,4.2 and 5.1 (of T 259) will not apply.

Have tests performed by an approved independent testing facility acceptable to the Department.

Submit test data and a one quart (one liter) a technical data sheet and the MSDS to the OMM  for approval

Furnish materials according to the Department’s Qualified Products List (QPL).

705.25 Gravity-Fed Resin  Provide non shrink, non metallic resin conforming to ASTM C 881, Type 1, Grade 1, Class B or C and the following:

The maximum viscosity at the lowest allowable temperature will be 250 cps.  The manufacturer will provide test data to verify the viscosity at the lowest temperature for the class for which it is to be approved. 

A minimum average sand retention of 95.0% for three samples tested according to the Sand Penetration Test Method described below.

Show no signs of cracking, debonding or insufficient curing during the sand penetration test

A. SAND PENETRATION TEST METHOD.   This test will be conducted with the following equipment and materials:

1. 4 oz [118 ml] wax coated paper cup.  Maximum top diameter 2 5/16"[59 mm]; bottom diameter 1 11/16" [43 mm]; height 2 3/8" [60 mm].

2.  20 - 30 grade sand (ASTM C 778)

3. 1 Pint non-absorbent container

4. 8 oz [240 ml] plastic cup

5. Stirring stick or spatula

6. Scale accurate to 0.1 g

7. Disposable gloves

8. Stop watch

9. Thermometer

10. Paint brush

B. Perform the test as follows

1. Assure the material and the room is at 73 °F [23 °C]

2. Determine and record the tare weight of the paper cup (1).

3. Introduce 100.0 grams of 20 - 30 graded sand (2) into the paper cup.

4. Record the weight of the cup and the sand.

5. Consolidate the sand in the cup by lifting the cup approximately ½ “ [13 mm] and dropping 25 to 30 times. Then lightly tap the sides of the cup 25 to 30 times with the fingers.  The sample may also be placed on a vibrating table for 10 to 15 seconds.

6. Measure enough material into the 8 oz plastic cups (4) to make at least a 200 g sample.

7. Combine the components into the non-absorbent container (3) and mix according to the manufacturer’s recommendations using a spatula or stirring stick (5).

8. Pour 40.0g of material over the sand and record the weight of the resin, cup and sand

9. Allow the resin, sand and cup to set undisturbed for 24 hours at 73 °F [23 °C].  Re-weigh the resin, cup and sand

10. Remove as much of the paper cup from around the hardened resin and sand matrix as possible.  Lightly brush any loose sand from the matrix.  Weigh the hardened matrix.

11. Calculate the percent of sand retained [F] as follows:

F = [E / (D-A)] x 100

[A] Tare weight of paper cup (g)

[B]Weight of cup and sand (g)

[C]Weight of fresh mixture of resin, cup and sand (g)

[D]Weight of cured mixture of resin, cup and sand (g)

[E]Weight of resin sand matrix as measured in step 10 (g)

 

12. Report the average of three specimens mixed separately

13. Also calculate and report the percent loss due to curing [G] as follows:

G = [(D - C) / (C - B)] x 100

14. Examine the sand / resin matrix for signs of insufficient curing and bond, or excessive shrinkage.

Material Approval.  The manufacturer will provide certified test data verifying compliance with the above requirements; technical data sheet; current MSDS for the material; 1 gallon sample; and a letter certifying that the product formulation will not be altered without notification to the Department and OMM. 

OMM will determine materials acceptance and include in the Department’s qualified Products list (QPL).

Furnish materials according to the Department’s Qualified Products List (QPL).

705.26 Epoxy injection Resin. Provide epoxy injection resin  capable of application, positive adherence and strength  development when applied to moist or wet surfaces at temperatures of 33 °F (1 °C) and above.

Use products that contain 100% solids material and no non-reactive diluents, solvents or other fillers.  Provide materials that meet the following requirements:

A.  The injection material will meet the requirements of ASTM C 881  Type IV, Grade 1 and Class B or C and have a maximum viscosity of 600 cps at the lowest ambient material and substrate temperature to be used.

B.  The paste materials will meet the requirements of  ASTM C 881 Type I, Grade 3 and  Class B or C.

Material Approval.  The manufacturer of the materials is responsible for prequalifying the material and submitting the following to the OMM:

A.   An Independent certified test data indicating that the materials, when mixed according to the  manufacturer’s recommendations, meet the requirements listed above.

B.   Manufacturer’s technical data sheet for the paste and injection materials.

C.   MSDS for paste and injection materials.

D.   1 Gallon Sample or 2 kits of the injection materials

Furnish materials according to the Department’s Qualified Products List (QPL).