Bricks of Fly Ash

  • Fly ash particles at 2,000x magnification.

A company is using waste from
coal-burning power plants to
make bricks. The firm hopes
to reduce the amount of coal
ash sent to landfills, and,
at the same time, cut the amount
of energy used to make bricks.
Chuck Quirmbach reports:

Transcript

A company is using waste from
coal-burning power plants to
make bricks. The firm hopes
to reduce the amount of coal
ash sent to landfills, and,
at the same time, cut the amount
of energy used to make bricks.
Chuck Quirmbach reports:

The company, Calstar, says it wants to open several U.S. plants which would use fly ash in making bricks for construction and paving. The California firm says its method uses far less energy that traditional clay bricks that have to be heated at high temperatures.

Luke Pustejovsky is a Calstar executive. He insists the quality of fly ash brick meets industry standards.

“We spent 18 months and millions of dollars on durability testing with our own labs, with outside third party labs, and this is a brick that’s built to last.”

But a trade group, the Brick Industry Association, is cool to fly ash brick. The group says the product has not yet met the test of time. The group is concerned any problems that come up could discourage customers from using brick.

For The Environment Report, I’m Chuck Quirmbach.

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