This committee oversees the work plan that covers the evaluation of cementitious and resin-based spray applied liners for stormwater conveyance conduits. This work plan utilizes laboratory testing to evaluate material used for the spray-applied liner. Different laboratory material testing is required for the resin-based liner versus the cementitious liner. An optional structural test is included in the work plan.
This work plan (located under Documents on the right side menu) is intended to determine the material, durability, application properties, composition properties, and structural capacity of each liner. Acceptability of each material, based upon the data generated as a result of the testing and evaluation in this practice, is the responsibility of the user. Structural design methodologies of spray applied liners are not covered under this standard practice.
NTPEP Designated Lab:
- SGS TEC Services
NTPEP - Spray Applied Pipe Liners
Annual meeting minutes are combined with attendance sheets and, if available, presentations.
2020 Annual Meeting Virtual
Quarterly Conference Call 03-04-20
2019 Annual Meeting Big Sky, MT
Quarterly Conference Call 07-25-18
2018 Annual Meeting Norfolk, VA
Quarterly Conference Call 09-20-17
Quarterly Conference Call 06-05-17
2017 Annual Meeting Boston, MA
Quarterly Conference Call 02-07-17
2016 Annual Meeting Grand Rapids, MI
Quarterly Conference Call 02-12-15
Quarterly Conference Call 05-04-15
2015 Annual Meeting Scottsdale, AZ
NTPEP tests products according to a Project Work Plan, which describes the laboratory and/or field test protocols used to conduct the evaluation. The Project Work Plan is a consensus-based document and includes peer review and input from industry experts. Each Project Work Plan is adopted after receiving at least two-thirds affirmative support from 52 AASHTO member states. The Project Work Plan is the basis for host states to conduct their testing and evaluation. When implemented by state DOTs, their own state standard specifications may supersede the NTPEP Project Work Plan. Industry is advised to be aware of state-level requirements, which may supersede basic NTPEP testing.
Associations that would like to be affiliated with the NTPEP Sprayed Applied Pipe Liners program should contact Courtney Wallace (firstname.lastname@example.org) for additional information.