for Highway Construction Page 643 of 71 5 SECTION 704 – JOINT FILLERS AND SEALERS
704.01 Pre-formed Expansion Joint Filler .
Meet AASHTO M 33, AASHTO M 153, AASHTO M 213, or ASTM D8139.
704.02 Joint Sealer for Asphalt and Concrete Pavements.
Meet ASTM D6690 Type II.
704.03 Hot Poured Elastomeric Type Concrete Joint Seale r.
Meet ASTM D6690 Type III.
704.04 Neoprene Compression Seal .
Meet AASHTO M 220 for concrete pavement and AASHTO M 297 for bridges. Provide a seal adhesive in accordance with the seal manufacturer’s written instructions and appropriate for use with the seal shown. Where an adhesive lubricant is required, meet ASTM D2835 for concrete pavement and ASTM D4070 for bridges. Where an epoxy adhesive is required, meet ASTM C881, Types I, II, IV, V, Grade 3, Classes B and C. Submit a manufacturer’s certification stating material meets the requirements and the manufacturer’s written requirements. Submit shop drawings and installation procedures for review as specified in 105.02. Install the compression seal in accordance with the manufacturer’s written instructions, using t he proper size of installation tool as recommended by the manufacturer. Clean metal surfaces that will contact the seal in accordance with SSPC -SP6.
704.05 Silicone Sealant .
Meet ASTM D5893. Sample and test each lot of silicone se alant before use. The Department requires an independent laboratory perform sampling and testing. Do not place material from a given lot evaluated for compliance with typical properties listed in the manufacturer’s design information bulletins and approved for placement . Allow at lea st 30 days for testing. Perform the following specific tests:
1.Tensile stress at 150 percent elongation(a).
2.Total elongation(a) and tac k-free time(b).
a.ASTM D412 Method A Die C, 7 day cure at 77°F plus or minus 2°F and 45 to 55 percent relative humidity.
b.ASTM C679. Testing is incidental and the cost included in the contract unit price. Deliver silicone sealant in the manufacturer’s original sealed container. Each container must have an intact, original manufacturer’s label with the following:
1.Legibly marked manufacturer’s name. for Highway Construction Page 644 of 71 5 2. Trade name of the sealer.
3.Production lot number.
4.Expiration date of the manufacturer’s shelf life warranty. Retest expired sealant at no additional cost to the Department and obtain approval before use. Do not use sealant if more than 6 months has elapsed since such retesting.
704.06 Elastomeric Sheet .
Fabricate the elastomeric sheet with nylon fabric embedded in a high quality vulcanized elastomeric compound using polymerized chloroprene as the only basic elastomer. Use a smooth elastomeric sheet that is without pinholes and surface blemishes, shows no evidence of ply delamination, and meets the physical requirements in Table 704.06- 1. Provide methods and materials to install a leak -proof sheet to the required length. Accompany elastomeric sheet with a manufacturer’s certificat e attesti ng compliance with the contract . Table 704.06 -1 – Elastomeric Requirements Physical Property Test Method Performance Requirements Hardness, Durometer A ASTM D 2240 60 ± 10 points Tensile strength ASTM D412 2,000 psi, minimum Elongation at break ASTM D 412 300%, minimum Brittleness temperature ASTM D 746 - 40°F Tear resistance ASTM D 624 (Die C) 150 lb/in minimum Flame resistance ASTM C 542 must not propagate flame Resistance to heat aging change in or iginal properties after 70 hr at 212°F (100°C) Hardness ASTM D 573 + 10 points, maximum Elongation ASTM D 573 - 40%, maximum Tensile strength ASTM D 573 - 15%, maximum Resistance to oil aging change in volume after 70 hr immersion in ASTM oil N o. 3 at 212°F (100°C) ASTM D 471 + 80%, maximum for Highway Construction Page 645 of 71 5 Table 704.06 -1 – Elastomeric Requirements Physical Property Test Method Performance Requirements Resistance to ozone condition after exposure to 100 pphm ozone in air for 100 hr at 100°F (sample under 20 percent strain) ASTM D 1149 No cracks Resistance to permanent set compression set after 22 hours at 158 °F (70°C) ASTM D 395 (Method B) 30%, maximum Resistance to water change in weight after 7 days immersion at 158°F (70°C) ASTM D 471 + 5%, maximum
704.07 Bridge Deck Joint Seals,
General. Fabricate the elastomeric portion of each bridge deck joint seal in a single piece or have the individual pieces factory -vulcanized and the entire elastomeric element shipped as a single unit. for Highway Construction Page 646 of 71 5 SECTION 705 – GROUT AND MORTAR
705.01 Grout , Type A.
Type A grout is portland cement and water, containing an approved expansion admixture or compound. The 28- day compressive strength of grout cubes must be at least 4,000 psi when cured and tested in accordance with AASHTO T 106, except confining cover plates are to be clamped on the molds immediately after filling and left on the molds for at least 20 hours.
A.Portland Cement . Provide portland cement as specified in 701. Ensure cement used for grouting does not contain lumps or other indication of hydration or “pack set.”
B.Water. Use water that is potable, clean, and without injurious quantities of substances known to be harmf ul to portland cement , aggregate , or prestressing steel as specified in 720.01.
C.Admixtures . Use admixtures that impart the properties of low water content, good flowability , and minimum of bleed and expansion properties. The grout must expand at least 5 percent but less than 10 percent as determined by expansion of grout above the mold during cure as measured at the center of the specimen. Make a separate, unco nfined specimen for this purpose. Use formulations that do not contain chemical in quantities that may have harmful effects on the prestressing steel or cement. Do not use admixtures containing chlorides, fluorides, sulphites, and nitrat es.
D.Mixing of Type A Grout . Add water to the mixer first, followed by portland cement . Mix the grout until a uniform, thoroughly blended grout is obtained without excessive temperature increase or loss of expansive properties of the admixture. Continuously agitate the grout until it is pumped. Do not add water to the grout to increase flowability that has been decreased by delayed use of the grout. Base proportions of materials on tests made on the grout before grouting. The water content must produce a flow time of at least 11 seconds as determined by ASTM C939. Provide test reports from a commercial laboratory confirming properties of grout made with materials supplied.
705.02 Grout , Type B.
Provide class as specified.
A.Class I, Nonmetallic, Nonshrink. Obtain approval of the grout material before use and meet the following criteria:
1.Pre-blended, commercial product with a 28- day compressive strength of at least 5,800 psi.
2.Nonmetallic, nonshrink, water mixing compound containing portland cement , silica sand , or other agents (e.g., water reducers, plasticizers, fillers).
3.Does not use chlorides, fluorides, sulphites, or nitrates.
4.Meet ASTM C1107 Grade B or C and the following:
Source: Idaho Standard Specifications for Highway Construction, 2023 Edition. Pages 679–681 of 768.