Ecmweb 7702 Concrete595
Ecmweb 7702 Concrete595
Ecmweb 7702 Concrete595
Ecmweb 7702 Concrete595
Ecmweb 7702 Concrete595

Taking Electrical Measurements of Concrete?

Aug. 17, 2015
The new standard will show how to sample fresh concrete, prepare a specimen for evaluation and conduct the measurements.

A proposed ASTM International standard will be used by engineers, concrete producers and testing agencies to measure electrical resistance in fresh concrete. Participants are welcome to join the new task group that is developing this standard (WK50586, Practice for Measuring the Electrical Resistance of Fresh Concrete).

The new standard will show how to sample fresh concrete, prepare a specimen for evaluation and conduct the measurements. The measurements will provide valuable information on water-to-cement ratios, initial setting time, compressive strength and overall quality.

ASTM member Dale P. Bentz, a chemical engineer at the National Institute of Standards and Technology, says that electrical resistance measurements of fresh concrete are becoming more common.

Noting that concrete is used extensively around the world, Bentz says, “Assuring the quality and performance of concrete is critical to strong infrastructure. These metrics are critical to scheduling construction projects such as finishing and form work removal, as well as verifying consistency of ready-mix concrete,” says Bentz.

The task group is preparing the new standard for balloting and invites all interested parties to join.

ASTM welcomes participation in the development of its standards. Become a member at www.astm.org/JOIN.

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