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Concrete Admixtures
NTPEP evaluates Concrete Ad-Mixtures once a year. They are tested in a laboratory for physical and chemical properties. This section contains results for Concrete Ad-Mixture evaluations.
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Concrete Curing Compounds
NTPEP evaluates Concrete Curing Compounds once a year. A series of laboratory tests are conducted. This section contains results for Concrete Curing Compound evaluations.
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Rolled Erosion Control Products
Rolled Erosion Control Products are evaluated using bench-scale test methods established by the Erosion Control Technology Council. Submissions for products are accepted four times a year. Testing is done by a private laboratory. This section contains results for Rolled Erosion Control Product evaluations.
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Geotextiles and Geosynthetics
NTPEP evaluates Geotextiles in accordance with AASHTO M288 four times a year. Two state laboratories conduct the tests. This section contains results for Geotextile evaluations.
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HDPE Plastic Pipe
HDPE pipe and resin is evaluated in accordance with applicable AASHTO and ASTM Standards. The test cycle is a rolling cycle, so NTPEP accepts applications at any time. This section contains results for HDPE pipe and resin evaluations.
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Reinforcing Steel (Rebar)
The NTPEP Reinforcing Steel Project Panel in conjunction with the AASHTO Subcommittee on Materials have finalized a qualification protocol for steel producing mills. The panel is now searching for a qualified agency to conduct the qualification visits.
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