Big Dig & Fly Ash

Here are some views of the excavation in progress.

When we finished excavating and the next step was to pour the concrete foundation.
We went with a concrete mixture which contained 30% fly ash, a byproduct of coal burning power plants. Fly ash in cement diverts waste from landfills and replaces Portland cement which is energy-intensive to process.
Check out these facts...

For every ton of fly ash used [to replace portland cement]–

· Enough energy is saved to provide electricity to an average American home for 24 days.

· The landfill space conserved equals 455 days of solid waste produced by the avg. American.

· The reduction in CO2 emissions equals 2 months of emissions from an automobile