grade SCE 43 for corrugated bands. Gasket thickness for bands with projections or flat bands shall be 1⁄2" greater than the nominal depth of the corrugation and shall be " for corrugated bands. 705.04 Oakum. Oakum for joints in bell and spigot pipe shall be made from hemp (Cannabis Sativa) line, or Benares Sunn fiber, or from a combination of these fibers. The oakum shall be thoroughly corded and finished and practically free from lumps, dirt, and extraneous matter. 705.05 Mortar for Masonry Beds and Joints. (a) Composition.-Unless otherwise indicated on the plans, masonry mortar shall be composed of one part portland cement or air-entraining portland cement and two parts fine aggregate by volume to which hydrated lime has been added in an amount equal to 10 percent of the cement by weight. In lieu of air-entraining cement, portland cement may be used with an air-entraining admixture in accordance with the applicable provisions of section 552. For masonry walls not exceeding 6 feet (1.83 m) in height, a mortar composed of one part masonry cement and two parts fine aggregate by volume may be substituted for the above mixture of portland cement, lime, and fine aggregate. For other construction, masonry cement may be used if and as shown on the plans. (b) Materials.-Either type I or type IA air entraining portland cement, conforming to AASHTO M 85 or AASHTO M 134 may be used, except that when the contract contains an item for concrete under Section 552, the Contractor may use the same type as is used for that work. Masonry cement shall conform to the requirements of AASHTO M 150 (ASTM C91). Fine aggregate shall conform to the requirements of AASHTO M 45 (ASTM C 144). Hydrated lime shall meet the requirements for residue, popping and pitting, and water retention shown for type N lime in ASTM C 207. Water shall conform to the requirements of subsection 712.01. Air-entraining agents shall conform to the requirements of subsection 711.02. 705.06 Copper Water Stops or Flashings. Sheet copper for water stops or flashings shall meet the requirements of AASHTO M 138 (ASTM B152) for type ETP, light cold-rolled, soft anneal, unless otherwise specified in the special provisions. 705.07 Rubber Water Stops. Rubber water stops may be molded or extruded and shall have a uniform cross section, free from porosity or other defects, conforming to the nominal dimensions shown on the plans. An equivalent standard shape may be furnished, if approved by the Engineer. The water stop may be compounded from natural rubber, synthetic rubber, or a blend of the two, together with other compatible materials which will produce a finished water stop meeting the requirements tabulated herein. No reclaimed material shall be used. The Contractor shall furnish a certificate from the producer to show the general composition of the material and values for the designated properties. The Contractor shall also furnish samples, in lengths adequate for making designated tests, as ordered by the Engineer. 705.08 Plastic Water Stops. Plastic water stops shall be fabricated with a uniform cross section, free from porosity or other defects, to the nominal dimensions shown on the plans. An equivalent standard shape may be furnished, if approved by the Engineer. The material from which the water stop is fabricated shall be a homogeneous, elastomeric, plastic compound of basic polyvinyl chloride and other material which, after fabrication, will meet the requirements tabulated herein. No reclaimed material shall be used. The Contractor shall furnish a certificate from the producer, showing values for the designated properties in Table 705.08-1. The Contractor shall furnish samples, in lengths adequate for making designated tests, as ordered by the Engineer. 705.09 Hot Poured Pipe-Joint Sealing Compound. Hot poured compounds shall meet the requirements of Federal Specification SS-S-169 for the type and class specified. 705.10 Pipe-Joint Packing Compound. Packing compounds for use with sealing compounds specified in subsection 705.09 shall be of appropriate sizes and shall meet the requirements of either Federal Specification HH-P-117 or HH-P-118. 705.11 Preformed Plastic Sealing Compound. Preformed plastic sealing compounds for concrete pipe joints shall meet the requirements of Federal Specification SS-S-210. Tensile strength. Table 705.08-1.-Required properties and test methods-finished plastic water stop Property Elongation at breaking Hardness (shore) Specific gravity Resistance to alkali. Maximum ±0.02 from manufacturer's value. Maximum weight change: -0.10 percent to +0.25 percent. Maximum hardness change ±5 (shore); maximum tensile strength decrease: 15 percent. Maximum 0.5 percent. No cracking. Not more than manufacturer's value. 'The cold bend test will be made by subjecting a 1-inch (25.4 mm) by 6-inch (152.4 mm) by 8-inch (3.18 mm) strip of plastic water stop to a temperature of minus 20 degrees Fahrenheit (-29 t° c) for 2 hours. The strip will immediately thereafter be bent 180 degrees around a rod of 4-inch (6.35 mm) diameter by applying sufficient force to hold the sample in intimate contact with the rod. The sample will then be examined for evidence of cracking. At least three individual samples from each lot will be tested and the result reported. Section 706.-CONCRETE, CLAY AND FIBER PIPE 706.01 Non-Reinforced Concrete Pipe. This pipe shall conform to the requirements of AASHTO M 86 (ASTM C 14) for the specified diameters and strength classes. 706.02 Reinforced Concrete Pipe. This pipe shall conform to the requirements of AASHTO M 170 (ASTM C 76) or AASHTO M 242 (ASTM C 655) for the specified diameters and strength classes. Elliptical pipe conforming to the requirements of AASHTO M 207 (ASTM C 507), shall be furnished where specified. Unless otherwise specified, pipe wall design and use of elliptical reinforcement in circular pipe are optional. Reinforced concrete arch culvert pipe shall meet the requirements of AASHTO M 206 (ASTM C 506). Precast reinforced concrete end sections shall conform to the requirements of the cited specifications to the extent to which they apply. Reinforced Concrete D-load pipe shall meet the requirements of AASHTO M 242 (ASTM C 655). 706.03 Perforated Concrete Pipe. This pipe shall conform to the requirements of AASHTO M 175 or to ASTM C 444 for the specified diameters and strength classes. 706.04 Drain Tile. This pipe shall conform to the requirements of AASHTO M 178 (ASTM C 412) or M 179 (ASTM C 4) for the specified material, diameters and quality classes. 706.05 Porous Concrete Pipe. This pipe shall conform to the requirements of AASHTO M 176 (ASTM C 654) for the specified diameters. 706.06 Vitrified Clay Lined Reinforced Concrete Pipe. Designs for fully lined or half lined pipes of the specified strength classes shall be submitted by the manufacturer for approval. The applicable requirements of AASHTO M 170 (ASTM C 76) and AASHTO M 65 shall govern. Liner, or liner elements, shall be clay of first quality, sound, thoroughly and perfectly burned, without warps, cracks, or other imperfections, and fully and smoothly salt glazed. 706.07 Perforated Vitrified Clay Pipe. This pipe shall conform to the requirements of AASHTO M 65, for pipe with full circular cross section, for the specified diameter and strength class. When specified, the bell shall have integral spacer lugs to provide for an annular opening and self-centering feature. 706.08 Vitrified Clay Pipe. This pipe shall conform to the requirements of AASHTO M 65 for the specified diameters and strength classes for circular, unperforated or perforated pipe, as shown on the plans. 706.09 Cradle Invert Clay Pipe. This pipe shall conform to the applicable requirements of AASHTO M 65. 706.10 Asbestos Cement Pipe. This pipe shall conform to the requirements of AASHTO M 217 or ASTM C 428 for the specified diameters and strength classes. 706.11 Perforated Asbestos Cement Pipe. This pipe shall conform to the requirements of AASHTO M 189 (ASTM C 508) for the specified diameters. 706.12 Bituminized Fiber Pipe. This pipe shall conform to the requirements of AASHTO M 177 ASTM D 1861 or D 1862. 706.13 Perforated Bituminized Fiber Pipe. This pipe shall conform to the requirements of AASHTO M 177 for the specified diameters. Unless otherwise specified, either Type I or Type II couplings may be furnished. 706.14 Reinforced Concrete Arch Culvert, Storm Drain and Sewer Pipe. This pipe shall conform to the requirements of AASHTO M 206 (ASTM C 506). 706.15 Reinforced Concrete Elliptical Culvert, Storm Drain and Sewer Pipe. This pipe shall conform to the requirements of AASHTO M 207 (ASTM C 507). 706.16 Reinforced Concrete D-Load Culvert, Storm Drain and Sewer Pipe. This pipe shall conform to the requirements of AASHTO, M 242 (ASTM C 655). 706.17 Poly (Vinyl Chloride) (PVC) Sewer Pipe and Drain Pipe. This pipe shall conform to the requirements of ASTM D 2729, except wall thickness shall conform to ASTM D 2836, Table 4. For perforated pipe, the size and spacing of perforations shall conform to AASHTO M 189, (ASTM C 508.) Section 707.-METAL PIPE 707.01 Cast Iron Pipe. This pipe shall conform to the requirements of AASHTO M 64 or ASTM A 142 for the specified diameters and strength classes. Unless otherwise specified either smooth, corrugated or ribbed pipe may be furnished. Pipe of diameter in excess of 48 inches (1.22 m) shall conform to the ANSI standard for Cast Iron Pit Cast Pipe for the specified diameter and strength class. 707.02 Corrugated Iron or Steel Pipe and Pipe Arches. (a) Riveted pipe and pipe arches.-These conduits shall conform to the requirements of AASHTO M 36 and M 218- for the specified sectional dimensions and thicknesses. (b) Welded pipe and pipe arches.-Corrugated metal pipe and pipe arches fabricated by resistance spot welding shall comply with the applicable requirements of AASHTO M 36 and M 218. (c) Helical pipe.-Unperforated helically corrugated pipe with continuous lock or welded seams shall be fabricated to sizes shown on the plans in conformance with the applicable requirements of AASHTO M 36, M218 and as specified in this section. |