We are excited about the added capabilities that the AMPT brings to PRI including the addition of AASHTO TP 79 “Standard Method of Test for Determining the Dynamic Modulus and Flow Number for Hot Mix Asphalt: (HMA) Using the Asphalt Mixture Performance Tester (AMPT)” to our list of services.
The AMPT allows PRI to add the three asphalt tests of NCHRP Projects 9-19 and 9-29 to our services. These three tests include; Dynamic Modulus, Flow Number and Flow Time.
Dynamic Modulus
Dynamic Modulus E* is a performance related property, for mixture evaluation and characterizing the stiffness of HMA. Dynamic Modulus evaluates the potential for rutting and fatigue cracking of HMA and can be used for forensic analysis of pavement failure. It can also be used to create master curves for structural design, improve mixture design and assess modified binders and local materials.
Flow Number
Flow number is related to the resistance of HMA to permanent deformation and consists of repeated load creep tests. Flow number evaluates rutting and provides accurate simulation of actual loading.
Flow Time
Flow time is a quick and simple measurement of the resistance of HMA to permanent deformation. It involves static creep tests and provides measurement of permanent deformation for rutting evaluation.
Contact us to discuss how we can use the AMPT to meet your testing needs.
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PRI is proud to announce the addition of an Asphalt Mixture
Performance Tester (AMPT) to our collection of state of the art equipment for
pavement testing.
We are excited about
the added capabilities that the AMPT brings to PRI including the addition of AASHTO
TP 79 “Standard Method of Test for Determining the Dynamic Modulus and Flow
Number for Hot Mix Asphalt: (HMA) Using the Asphalt Mixture Performance Tester
(AMPT)” to our list of services.
The AMPT allows PRI to add the three asphalt tests of NCHRP
Projects 9-19 and 9-29 to our services. These three tests include; Dynamic
Modulus, Flow Number and Flow Time.
Dynamic Modulus
Dynamic Modulus E* is a performance related property, for
mixture evaluation and characterizing the stiffness of HMA. Dynamic Modulus evaluates
the potential for rutting and fatigue cracking of HMA and can be used for forensic
analysis of pavement failure. It can also be used to create master curves for
structural design, improve mixture design and assess modified binders and local
materials.
Flow Number
Flow number is related to the resistance of HMA to permanent
deformation and consists of repeated load creep tests. Flow number evaluates rutting
and provides accurate simulation of actual loading.
Flow Time
Flow time is a quick and simple measurement of the
resistance of HMA to permanent deformation. It involves static creep tests and
provides measurement of permanent deformation for rutting evaluation.
Contact us to discuss how we can use the AMPT to meet your
testing needs.
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