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 AUSTIN, TEXAS — The Transtec Group's final report for the Federal Highway Administration (FHWA) Transportation Pooled Fund (TPF) Intelligent Compaction (IC) project is the first of its kind, covering IC technologies for soils, subbase, stabilized base, and hot mix asphalt materials and conducting field reviews on all available IC vendors in the United States, including Ammann/Case, Bomag, Caterpillar, Dynapac, and Sakai.

IC is still an emerging technology, but for some applications it is mature enough for implementation in field compaction of pavement materials. It is an equipment-based technology that consists of vibratory rollers equipped with an accelerometer-based measurement device, global positioning system (GPS), infrared temperature sensors, and an on-board computer display to evaluate how the pavement responds to the applied compaction effort.

This study was performed under the Transportation Pooled Fund TPF-5(128), which includes 12 participating state departments of transportation (DOTs): Georgia, Indiana, Kansas, Maryland, Minnesota, Mississippi, New York, North Dakota, Pennsylvania, Texas, Virginia, and Wisconsin.

The FHWA/TPF project, led by the Transtec Group, also produced an IC Road Map that addresses the gaps and barriers for implementation. The IC Road Map includes four major tracks:
1) Equipment and Technologies,
2) Data Management and Integration,
3) Specifications, and
4) Technology Transfer and Training.

An extensive knowledge base was built from the 16 field demonstrations performed under this project and is available to the public via the IC website, www.IntelligentCompaction.com.
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For more information about IC, contact the IC team lead George Chang, Ph.D., at The Transtec Group, Inc., gkchang@thetranstecgroup.com.