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State of Technology Report for Force Main Rehabilitation, Final ...

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ASTM F1533<br />

The renewal process involves installing a de<strong>for</strong>med PE liner into an existing pipeline and then re<strong>for</strong>ming<br />

the liner with heat and pressure to fit tightly to the bore <strong>of</strong> the original pipeline. PE pipe used <strong>for</strong> a liner<br />

under this specification shall be PE 2406 or PE 3408 (ASTM D3350), with a Plastic Pipe Institute (PPI)<br />

recommended HDB <strong>of</strong> 1,250 or 1,600 psi (86 or 110 bar), respectively. Nominal pipe diameters range<br />

from 3 to 18 inches (75 to 450 mm), with a DR range <strong>of</strong> 17 to 32.5. Other non-standard sizes are also<br />

covered providing the materials meet the minimum requirements in this standard. Typical QC test<br />

requirements include outside diameter and wall thickness checks, tensile strength, tensile elongation, and<br />

flexural modulus. Environmental stress crack resistance (ESCR) is a qualification test, with level 3 <strong>of</strong><br />

ASTM D3350 as a minimum.<br />

ASTM D2239 or ASTM D3035<br />

Pipe meeting these standards would be suitable <strong>for</strong> inline replacement <strong>of</strong> a sewer <strong>for</strong>ce main by the<br />

sliplining method, providing the reduction in flow capacity can be accommodated.<br />

CIPP Materials<br />

The following ASTM standards in Table 5-3 cover CIPP materials used <strong>for</strong> renewal.<br />

Specification No.<br />

Table 5-3. ASTM Material Standards <strong>for</strong> CIPP<br />

Title Application<br />

ASTM D5813 Standard Specification <strong>for</strong> Cured-In-Place<br />

4-132 inch CIPP used in gravity<br />

Thermosetting Resin Sewer Pipe<br />

systems<br />

ASTM D5813<br />

Three types and two grades <strong>of</strong> CIPP liners are described in this standard. The type <strong>of</strong> liners range from<br />

those designed to only provide chemical resistance and prevent exfiltration (Class I) to those designed <strong>for</strong><br />

use in either a partially deteriorated (Class II) or a fully deteriorated pipe (Class III). The grades are<br />

distinguished by whether the tube is impregnated with polyester resin (Grade 1) or an epoxy resin (Grade<br />

2). ASTM D5813 also has two chemical resistance requirements. The one requirement stipulates that<br />

samples shall be capable <strong>of</strong> exposure <strong>for</strong> one year to five different chemical solutions (1% nitric acid, 5%<br />

sulfuric acid, 100% ASTM Fuel C, 100% vegetable oil, 0.1% detergent, and 0.1% soap) and still retain<br />

80% <strong>of</strong> their flexural modulus. The other requirement is similar to that imposed on glass-rein<strong>for</strong>ced<br />

thermosetting plastic pipes (ASTM D3262 or ASTM D3754) and is commonly referred to as strain<br />

corrosion. For this requirement, samples must be capable <strong>of</strong> being deflected to meet certain strain<br />

requirements (see Table 2 <strong>of</strong> D5813) over specific time periods <strong>of</strong> up to 10,000 hours, while exposed to<br />

1.0 N sulfuric acid (i.e., 5%).<br />

Glass-Rein<strong>for</strong>ced Plastic<br />

The following ASTM standard in Table 5-4 covers FRP/GRP materials used <strong>for</strong> renewal. ASTM D3754<br />

combines the pressure requirements <strong>of</strong> ASTM D3517 Fiberglass Pressure Pipe with the chemical<br />

resistance (strain corrosion) requirements <strong>of</strong> ASTM D3262 Fiberglass Sewer Pipe.<br />

58

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