US recyclers turn old wind turbine blades into cement and concrete

US recycling companies recover about 85% of a wind turbine blade, using its fiberglass in cement and concrete production. The fibers substitute for sand, clay and rebar, while blade pieces can replace coal in kilns, cutting CO2 emissions by 27–90%.

• About 85% of a turbine blade's material can be recycled
• Blade fibers substitute for sand and clay in cement
• Replacing rebar with blade pieces cuts that stage's emissions by 90%
• Using blades as kiln fuel reduces CO2 by about 27%