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, and the certified test data specified in 101.03 with each shipment.

705.03 Preformed Fillers. Furnish preformed fillers conforming 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.

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

8.1 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.

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

7.2 Perform inspection at the project site. Obtain random samples from material delivered to the project site or at other locations designated by the Laboratory.

7.3 A minimum of 3 feet (1.0 m), with all manufacturers’ markings, shall constitute one sample.

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. Submit Certified Test Data covering the specified properties of preformed elastomeric joint seals with the approval request. Submit a 9-foot (2.7 m) length of elastomeric joint sealer concurrently with the request for qualification.

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)

705.20 Non Shrink, Non Metallic Grout. Provide non shrink, non metallic grout conforming to ASTM C 881, Type IV, Grade 3, Class A, B, or C; or the following:

Provide polyester, vinylester, and epoxy grouts for anchoring bars, dowels, bolts, rods, and similar materials consisting of a two-component resin system as follows:

Add aggregate as recommended by the resin manufacturer. Ensure that the proportions of the grout components are according to the manufacturer’s instructions.

Use a grout that is prequalified by the Laboratory. The prequalification is based on evaluation of certified test data, according to 101.03, showing compliance with the following requirements:

Compressive strength	ASTM C 579, 7 days, minimum	8000 psi (55 MPa)
Tensile strength	ASTM C 307, 7 days, minimum	1300 psi (9.0 MPa)
Modulus of elasticity	ASTM C 580, 7 days, ±10%	500,000 psi (3450 MPa)
Bond Strength	ASTM C 882, 2 days, minimum	1800 psi (12.5 MPa)
Water absorption	ASTM C 413, maximum	1.5%
Pullout resistance	24 hours, minimum	9500 lb (42.2 kN)

For the pullout resistance test, use a concrete test block or cylinder having a minimum 6-inch (150 mm) diameter by 12 inches (300 mm) deep and having a 28-day minimum concrete compressive strength of 4000 pounds per square inch (27.6 MPa). Center a 6-inch (150 mm) deep hole with a minimum diameter of 13/16 inch (20.6 mm) and a maximum diameter of 1 inch (25 mm) in the block or cylinder by drilling or forming.

Use a No. 6 (20M) deformed reinforcing bar 30 inches (760 mm) long, cleaned and degreased. After thoroughly cleaning the hole, grout the bar into the test block or cylinder as recommended by the resin manufacturer. Hold and center the bar perpendicular to the concrete surface in the grout-filled hole during the curing period.

Cure the resulting specimen at 77 ± 5 °F (25 ± 3 °C) for 24 hours. Apply an axial pull out 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.

Supply the polyester, vinylester, and epoxy resins in non-reactive containers and with their MSDS. Label containers with the name of the mixture, the manufacturer, the shelf life expiration date, the batch number, quantity, and instructions.

Use materials 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.

Do not use materials containing more than 50 parts per million of chloride. Do not use any admixture containing more than 50 parts per million of chloride in conjunction with these materials.

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 shall 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.

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 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)
Procedure B (350 Cycles)^[1] 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. Has a field performance rating of no less than 7.5 at the end of 3 years of testing.

C. Have the material manufacturer furnish the Laboratory with a certified copy of test results from a recognized laboratory showing compliance with the requirements of this specification. A recognized laboratory is one that is regularly inspected by the Cement and Concrete Reference Laboratory of the National Institute of Standards and Technology.

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

9.2 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 7.2.2 and that the minimum flow is 125 @ 5 drops of the flow table in 3 seconds.