Home Internet of Things Aerospace Apparel Energy Defense Health Care Logistics Manufacturing Retail

Access This Premium Content

Options To Access This Article:

What Subscribers Are Saying

  • "Probably the best investment I've ever made."
    Steve Meizlish, President & CEO, MeizCorp Services, Inc.
  • "I have found that RFID Journal provides an objective viewpoint of RFID. It you are looking for a resource that provides insights as to the application and implications of deploying RFID, RFID Journal will meet your needs, It gives you a broad perspective of RFID, beyond the retail supply chain."
    Mike O'Shea, Director of Corporate AutoID/RFID Strategies & Technologies, Kimberly-Clark Corp.
  • "No other source provides the consistent value-added insight that Mark Robert and his staff do. In a world dominated by press release after press release, RFID Journal is developing as the one place to go to make the most sense out of the present and future of RFID in commerce."
    Bob Hurley, Project Leader for RFID, Bayer HealthCare's Consumer Care Division
  • "RFID Journal is the one go-to source for information on the latest in RFID technology."
    Bruce Keim, Director, Hewlett-Packard
  • "RFID Journal is the only source I need to keep up to the minute with the happenings in the RFID world."
    Blair Hawley, VP of Supply Chain, Remington Products Company

Concrete Use for RFID in Roads

The Michigan Department of Transportation is using active RFID tags to determine the hardness of fresh concrete, which has cut costs and kept construction projects rolling.
By Bob Violino
Oct 01, 2004—Determining the hardness of newly laid concrete is, well, hard. A variety of factors, including humidity and temperature, can affect the curing process. Today, construction crews test sample concrete cylinders by crushing them, but that doesn’t always prove accurate; the cylinders could be stored under different conditions, and the sheer mass of a slab of concrete can affect how it cures.

Active tags are combined with temperature sensors

The Michigan Department of Transportation has solved the problem using RFID. Three years ago, it started working with Identec Solutions, a Canadian provider of active RFID tags with temperature loggers. MDOT embeds Identec active tags, which operate at 950 MHz, in concrete to get accurate temperature readings for the concrete.

The MDOT also worked with another Canadian company, International Road Dynamics (IRD), which developed algorithms that calculate the hardness of fresh concrete based on its temperature. Identec’s tags and the IRD software are sold as a package by a Michigan company called Wake, which offers a PCMCIA reader that turns an HP iPAQ or other PDA into a handheld hardness detector.

The active tags can cost from $40 to $70, according to Warren Atkins, Wake’s president. But road crews need to place only four or five tags in a stretch of concrete laid in one day to get an accurate reading of its maturity. Atkins says the system can save construction crews one day of time per week because once they determine the concrete has reached the proper hardness, the next step in the construction or repair process can begin. Crews complete their work quicker, commuters get back on the road sooner, and the MDOT winds up with hard savings.
To continue reading this article, please log in or choose a purchase option.

Option 1: Become a Premium Member.

One-year subscription, unlimited access to Premium Content: $189

Gain access to all of our premium content and receive 10% off RFID Reports and RFID Events!

Option 2: Purchase access to this specific article.

This article contains 278 words and 1 page. Purchase Price: $19.99

Upgrade now, and you'll get immediate access to:

  • Case Studies

    Our in-dept case-study articles show you, step by step, how early adopters assessed the business case for an application, piloted it and rolled out the technology.

    Free Sample: How Cognizant Cut Costs by Deploying RFID to Track IT Assets

  • Best Practices

    The best way to avoid pitfalls is to know what best practices early adopters have already established. Our best practices have helped hundreds of companies do just that.

  • How-To Articles

    Don’t waste time trying to figure out how to RFID-enable a forklift, or deciding whether to use fixed or mobile readers. Our how-to articles provide practical advice and reliable answers to many implementation questions.

  • Features

    These informative articles focus on adoption issues, standards and other important trends in the RFID industry.

    Free Sample: Europe Is Rolling Out RFID

  • Magazine Articles

    All RFID Journal Premium Subscribers receive our bimonthly RFID Journal print magazine at no extra cost, and also have access to the complete online archive of magazine articles from past years.

Become a member today!

RFID Journal LIVE! RFID in Health Care LIVE! LatAm LIVE! Brasil LIVE! Europe RFID Connect Virtual Events RFID Journal Awards Webinars Presentations
© Copyright 2002-2016 RFID Journal LLC.
Powered By: Haycco