@CBSNews reports, “Renewable Energy sources surpassed coal for electricity generation in the U.S. last year”, now we are faced with the question of how to sustainably dispose of worn-out solar panels and wind turbine blades.
Saluda Dam is a hybrid of a rockfill berm on the downstream slope and a new roller-compacted concrete (RCC) gravity dam downstream of the dam. Fly Ash is essential to the mix of RCC, it improves the workability.
@cleantechnica reports Fortum Battery Recycling has begun operations in Finland. Their low CO2 hydrometallurgical plant allows them to sustainably produce materials needed for EV lithium-ion batteries.
The bridge spans approximately 4.5 miles, this project was one of the largest public works projects in California history. The project used approx. sixty thousand tons of Fly Ash. According to @GWR, it is the widest bridge as of 2013.