Fly Ash Remains an Abundant Resource For Improving Concrete Durability

摘要

Concrete engineers and producers have known the benefits of using fly ash for decades. Reduced water usage, lower heat of hydration, decreased permeability and significantly increased durability are just a few of the benefits of concrete that incorporates a material recovered from power plants that consume coal. The question on the minds of some users lately has been: "How long will I be able to get it?" "It seems you can't turn around these days without seeing another article about coal plants shutting down," says Bill Gehrmann, president of Headwaters Resources, America's largest manager and marketer of coal combustion products. "Unfortunately, headlines are often misleading."