Event Title

Measurement of Asphalt Density Using Microwaves

Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

In a typical paving operation, several parties are involved in producing a quality asphalt pavement (e.g., design mix specifier, hot mix plant operator, QA/QC inspector, asphalt laying operator, and roller compactor operator). However, quite often it is the roller operator’s skill that ultimately determines the density of the compacted asphalt mat and therefore the final quality of the pavement. An under-compacted asphalt mat is permeable to air and water which shortens the pavement life. On the other hand, unnecessary roller passages will lead to over-compaction that is associated with insufficient air void content in the asphalt. An over-compacted pavement is susceptible to permanent deformation [1], leave alone the waste of time and equipment in the compaction process. Hence, it would be highly advantageous if the roller operator is able to continuously monitor the compaction level of asphalt during the paving operation.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18A

Chapter

Chapter 2: Electromagnetic, Thermal, and X-Ray Techniques

Section

Microwave NDE

Pages

561-567

DOI

10.1007/978-1-4615-4791-4_71

Language

en

File Format

application/pdf

This document is currently not available here.

Share

COinS
 
Jan 1st, 12:00 AM

Measurement of Asphalt Density Using Microwaves

Snowbird, UT, USA

In a typical paving operation, several parties are involved in producing a quality asphalt pavement (e.g., design mix specifier, hot mix plant operator, QA/QC inspector, asphalt laying operator, and roller compactor operator). However, quite often it is the roller operator’s skill that ultimately determines the density of the compacted asphalt mat and therefore the final quality of the pavement. An under-compacted asphalt mat is permeable to air and water which shortens the pavement life. On the other hand, unnecessary roller passages will lead to over-compaction that is associated with insufficient air void content in the asphalt. An over-compacted pavement is susceptible to permanent deformation [1], leave alone the waste of time and equipment in the compaction process. Hence, it would be highly advantageous if the roller operator is able to continuously monitor the compaction level of asphalt during the paving operation.