ASTM F3632-23
(Practice)Standard Practice for Close Tolerance Pipe Slurrification (CTPS) Method to Replace, Rehabilitate, and Repair Existing Buried Asbestos Cement (AC) Pipe Systems
Standard Practice for Close Tolerance Pipe Slurrification (CTPS) Method to Replace, Rehabilitate, and Repair Existing Buried Asbestos Cement (AC) Pipe Systems
SIGNIFICANCE AND USE
5.1 This practice is for use by engineers, regulatory agencies, owners, and inspection organizations who are involved in the removal and replacement of AC pipes through the use of a method that is in compliance with the rules for removing and replacing AC pipe in accordance with NESHAP and OSHA requirements governing the handling, removal, and disposal of any ACM.
SCOPE
1.1 This practice covers the requirements and test methods of an EPA-approved alternative work practice (AWP) for the replacing of an Asbestos Cement (AC) pipe by the Close Tolerance Pipe Slurrification Method in accordance with said EPA CTPS AWP issued on June 10, 2019. This process utilizes a patented method (US 10,557,587 B2)2 and other specially designed tools designed to work with the EPA regulations surrounding AC pipe work. Specifically, the special (patented) back reaming tool (US 8,365,841 B2)2 delivers the required bentonite-based fluid to maintain a wet cutting environment which is an important requirement for cutting Asbestos Cement Material (ACM). The sizing of the cutting head is set at 0.25 in. in diameter greater than the replacement pipe's outside diameter to facilitate the removal of the ACM. This close tolerance sizing creates a scenario where the new pipe, along with the injection of the drill fluid, will allow the slurry to flow and subsequently expel at pre-determined pit locations. The slurry containing the ACM is then removed from the site and properly disposed of. Any remaining trace amounts of asbestos fiber in the ground are encapsulated in a skim coat of the slurry remaining around the new pipe, the skim coat having the consistency of a lightweight concrete material commonly known as excavatable flowable fill.
1.2 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F3632 − 23
Standard Practice for
Close Tolerance Pipe Slurrification (CTPS) Method to
Replace, Rehabilitate, and Repair Existing Buried Asbestos
1
Cement (AC) Pipe Systems
This standard is issued under the fixed designation F3632; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.1 This practice covers the requirements and test methods
1.4 This international standard was developed in accor-
of an EPA-approved alternative work practice (AWP) for the
dance with internationally recognized principles on standard-
replacing of an Asbestos Cement (AC) pipe by the Close
ization established in the Decision on Principles for the
Tolerance Pipe Slurrification Method in accordance with said
Development of International Standards, Guides and Recom-
EPA CTPS AWP issued on June 10, 2019. This process utilizes
2
mendations issued by the World Trade Organization Technical
a patented method (US 10,557,587 B2) and other specially
Barriers to Trade (TBT) Committee.
designed tools designed to work with the EPA regulations
surrounding AC pipe work. Specifically, the special (patented)
2
2. Referenced Documents
back reaming tool (US 8,365,841 B2) delivers the required
bentonite-based fluid to maintain a wet cutting environment
2.1 ASTM Standards:
which is an important requirement for cutting Asbestos Cement
D1600 Terminology for Abbreviated Terms Relating to Plas-
Material (ACM). The sizing of the cutting head is set at 0.25 in.
tics
in diameter greater than the replacement pipe’s outside diam-
D2657 Practice for Heat Fusion Joining of Polyolefin Pipe
eter to facilitate the removal of the ACM. This close tolerance
and Fittings
sizing creates a scenario where the new pipe, along with the
D3035 Specification for Polyethylene (PE) Plastic Pipe (DR-
injection of the drill fluid, will allow the slurry to flow and
PR) Based on Controlled Outside Diameter
subsequently expel at pre-determined pit locations. The slurry
F412 Terminology Relating to Plastic Piping Systems
containing the ACM is then removed from the site and properly
F1417 Practice for Installation Acceptance of Plastic Non-
disposed of. Any remaining trace amounts of asbestos fiber in
pressure Sewer Lines Using Low-Pressure Air
the ground are encapsulated in a skim coat of the slurry
F2164 Practice for Field Leak Testing of Polyethylene (PE)
remaining around the new pipe, the skim coat having the
and Crosslinked Polyethylene (PEX) Pressure Piping
consistency of a lightweight concrete material commonly
Systems Using Hydrostatic Pressure
known as excavatable flowable fill.
F2620 Practice for Heat Fusion Joining of Polyethylene Pipe
1.2 Units—The values stated in SI units are to be regarded and Fittings
as the standard. No other units of measurement are included in
2.2 AWWA Standards:
this standard.
AWWA C605 Underground Installation of Polyvinyl Chlo-
1.3 This standard does not purport to address all of the ride (PVC) and Molecularly Oriented Polyvinyl Chloride
safety concerns, if any, associated with its use. It is the
(PVCO) Pressure Pipe and Fittings
responsibility of the user of this standard to establish appro- AWWA C900 Polyvinyl Chloride (PVC) Pressure Pipe and
Fabricated Fittings, 4 In. Through 60 In. (100 mm
Through 1,500 mm)
AWWA C906 Polyethylene (PE) Pressure Pipe and Fittings,
1
This test method is under the jurisdiction of ASTM Committee F36 on
4IN. Through 65 IN. (100 MM Through 1,650 MM), for
Technology and Underground Utilities and is the direct responsibility of Subcom-
mittee F36.20 on Inspection and Renewal of Water and Wastewater Infrastructure.
Waterworks
Current edition approved June 1, 2023. Published July 2023. DOI: 10.1520/
AWWA Manual of Practice M23 PVC Pipe – PVC Pipe -
F3632-23.
2 Design and Installation
The methods (created by Dimitroff, Ted R.) US 10,557,587 B2 and US
8,365,841 B2 are covered by a patent. Interested parties are invited to submit
2.3 Plastic Pipe Institute (PPI):
information regarding the identification of an alternative(s) to this patented item to
Plastic Pipe Institute’s Handbook of PE Pipe Design of PE
the ASTM International Headquarters. Your comments will receive careful consid-
eration at a meeting of the responsible technical committee, which you may attend. Piping Systems
Copyright © ASTM International, 100 Barr Harbor Drive
...
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