Compost; Fly ash and slag cement alternative approved - min 15%; up to 25-50%; Construction and Demolition Material Management required

Requires hot mix asphalt using recycled asphalt shingles

Utilizes recycled materials and requires quantity reporting for recycled materials, including hot mix asphalt, recycled concrete aggregate, recycled glass, steel furnace slag and other recycled materials.

Provide steel reinforcement with an average recycled content of steel products so that postconsumer recycled content plus one-half of preconsumer recycled content is not less than 25 percent. Use fly ash, pozzolan, ground granulated blast-furnace slag, and silica fume as needed to reduce the total amount of portland cement, which would otherwise be used, by not less than 40 percent.

Construction materials are required to be disposed or recycled. Recycled Asphalt Concrete Pavement: A maximum of 20 percent by weight of recycled asphalt concrete pavement may be used in the blended product. The asphalt concrete content is calculated as the amount of asphalt particles retained on all screens U.S. No. 4 and above.

Recycled materials and reporting required, including recycled asphalt pavememt and reclaimed asphalt shingles; Compost; biodegradable lubricants required

Reclaimed concrete aggregates

Use biodiesel fuel and biobased fluids; recycled materials required including the use of compost and recycled asphalt pavement and reclaimed asphalt shingles in hot mix asphalt; must have a construction and demolition waste management and recycling plan; tracking required

Construction and demolition plan required; Cement substitute required - minimum 25% fly ash or between 40-55% slag

LED lighting on runway; Cement alternatives required per ASTM specs

Construction and demolition plan required; Cement substitute required - 20% fly ash

Recycled material required; hot mix asphalt shall include reclaimed asphalt pavement (RAP) or reclaimed asphalt shingles (RAS)

Allows the use of cement substitutes per WSDOT specs