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From page 113... ... J-1 Proposed Revisions to AASHTO M 294 for Recycled Materials Incorporation The following pages detail the proposed revisions to AASHTO M 294 to include the incorporation of recycled materials. Commentary is shown in the margins of the standard. Read the entire page →
From page 114... ... J-2 Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500-mm (12- to 60-in.) Diameter AASHTO Designation: M 294-17 Release: Group 2 (June 2016) Read the entire page →
From page 115... ... J-3 Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500-mm (12- to 60-in.) Diameter AASHTO Designation: M 294-17 Release: Group 2 (June 2017) Read the entire page →
From page 116... ... J-4 AASHTO LRFD Bridge Construction Specifications AASHTO LRFD Bridge Design Specifications AASHTO Standard Practice for Service Life Determination of Corrugated HDPE Pipes Manufactured with Recycled Materials 2.2. ASTM Standards: D618, Standard Practice for Conditioning Plastics for Testing D638, Standard Test Method for Tensile Properties of Plastics D883, Standard Terminology Relating to Plastics D2122, Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings D2412, Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading D2444, Standard Test Method for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight) Read the entire page →
From page 117... ... J-5 3.3. contaminant - inorganic particulate matter or other non-HDPE material that creates inclusions or stress risers in the crystalline structure of HDPE. Read the entire page →
From page 118... ... J-6 4.1.2. Type S -- This pipe shall have a full circular cross section, with an outer corrugated pipe wall and a smooth inner liner. Read the entire page →
From page 119... ... J-7 6.1.1.2. For pipes manufactured with recycled materials, UCLS testing shall be conducted in accordance to ASTM F3181 and Section 9.4 to ensure the desired service life is met. Read the entire page →
From page 120... ... J-8 7.2.3. Inside Diameter Tolerances -- The tolerance on the specified inside diameter shall be 4.5 percent oversize and 1.5 percent undersize, but not more than 37 mm (1.5 in.) Read the entire page →
From page 121... ... J-9 Table 1 -- Rows of Perforations, Height H of the Centerline of the Uppermost Rows above the Invert, and Chord Length L of Unperforated Segment, for Class 1 Perforations Nominal Diameter, mm (in.) Rows of Perforationsa H, Max,b mm (in.) Read the entire page →
From page 122... ... J-10 7.5. Pipe Flattening -- Pipe specimens shall show no visual evidence of cracking, splitting or delamination when tested in accordance to Section 9.2. Read the entire page →
From page 123... ... J-11 7.9.2. Soiltight joints are specified as a function of opening size, channel length, and backfill particle size. Read the entire page →
From page 124... ... J-12 which simplifies to: 1.20Db hp = where: b = Minimum buckling deflection limit, percent (%) D = Inside diameter of pipe, mm (in.) Read the entire page →
From page 125... ... J-13 Figure 2: Example illustration of the corrugation height, hp Figure 3: Example measurement of the inside diameter with a vernier caliper and the outside diameter with a circumferential wrap tape. Other measurement techniques in accordance to ASTM D2122 are permissible. Read the entire page →
From page 126... ... J-14 9.2.2. It is permissible to run the pipe stiffness test in conjunction with the pipe flattening test as long as individual evaluations are made for their respective criteria as specified under Sections 7.4 and 9.1 (stiffness) Read the entire page →
From page 127... ... J-15 9.4.1.3. If specimens are taken from ground-up pieces of pipe that have been compression-molded into a plaque, the plaques shall be made per ASTM D4703 Procedure C Read the entire page →
From page 128... ... J-16 Figure 5 -- Location of Pipe Cut Figure 6 -- Feeler Gauge Insertion 9.8. Stub Compression Capacity -- Determine the stub compression capacity of the pipe section in accordance with T 341. Read the entire page →
From page 130... ... J-18 independently tested and prequalified based on a "recipe" with component percentage tolerances of no more than ±1.5 percent substantiated by annual independent testing. Read the entire page →
From page 131... ... J-19 T = Service temperature, °C SVC = Design service stress, psi tSVC = Required service life at service conditions, yrs. Read the entire page →
From page 132... ... J-20 X1.2.3. The plant must have an approved laboratory, either within the company or an independent laboratory. Read the entire page →
From page 133... ... J-21 X1.8. Sampling and Testing: X1.8.1. Read the entire page →
From page 134... ... J-22 X2.2. Example 2: Consider a pipe installed in a condition where the maximum factored tensile design stress is 400 psi and the average in-ground service temperature is 20 °C. Read the entire page →

From page 113...

... J-1 Proposed Revisions to AASHTO M 294 for Recycled Materials Incorporation The following pages detail the proposed revisions to AASHTO M 294 to include the incorporation of recycled materials. Commentary is shown in the margins of the standard.