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Posts with the 'Asphalt' Tag

Asphalt, Concrete

The new infrastructure bill passed the Senate on August 10 after months of tough negotiations. This spending package carries a $1 trillion price tag over five years. $550 billion is geared for transportation, broadband and utilities, while $110 billion is earmarked for roads, bridges and other major infrastructure projects,...

Asphalt, Technical

This guest post was written by Chuck Oden, PhD of ESS. This white paper was originally published by ESS and we are sharing it here, with his permission. Introduction The Humboldt Asphalt Pavement Scanner (APS) is a revolutionary new system that provides detailed and comprehensive quality information for new asphalt mats without...

Asphalt, Balanced Mix Design

This guest post is written by Fan Yin, PhD. He is an Assistant Research Professor at the National Center for Asphalt Technology at Auburn University. We are sharing it here, with his permission, but the original article may be found here. The Hamburg Wheel Tracking Test (HWTT) per AASHTO T 324 is widely used by asphalt...

Asphalt, Ductility Testing

What is Ductility Testing? Materials that are capable of deforming plastically before fracturing are defined as ductile. Ductile testing, therefore, involves measuring the amount of stress that can be applied to a material without fracture. Why is Ductile Testing Important? Ductile testing will tell you the tensile strength of...

Asphalt, Soil, California Bearing Ratio

The California Ratio (CBR) test is a penetration test used to evaluate the subgrade strength of roads and pavements. The California Bearing Ratio Test was developed by the California Division of Highways around 1930 and has subsequently been adopted by numerous states, the Federal Highway Commission, and many other countries....

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