• Asphalt LEED Points

    Hot Asphalt Mix LEED Points

LEED® Project Certification: Hot Mix Asphalt

Asphalt pavements can help divert waste from landfills, use regionally produced and recycled materials, reduce heat island effect and help manage stormwater. Projects can potentially earn additional credits by using asphalt with high recycled content or warm-mix asphalt.

Most asphalt pavements contain some percentage of recycled asphalt pavement, but pavements must use above 20 percent of recycled asphalt content to earn up to two LEED points. In addition to qualifying a project for LEED points, increasing the percentage of recycled material in asphalt pavement benefits our environment by conserving limited natural resources.

Hot mix asphalt (HMA) can qualify for LEED® points in several categories, depending on the individual asphalt mix chosen.

Available LEED points for Hot Mix Asphalt (HMA)

MRc4.1 and 4.2 Recycled Content

MR Credits 4.1 –  The sum of Postconsumer plus 50% of the post industrial content = 10%

MR Credits 4.2 –  The sum of Postconsumer plus 50% of the post industrial content = 20%

A reduction in virgin aggregates is accomplished by incorporating recycled asphalt back into the “new” asphalt mix. Many Canadian province specifications allow up to 50 percent recycled asphalt to be added into “new” asphalt mixtures.

MRc2.1 and 2.2 – Construction Waste Management

MR Credits 2.1 – Divert 50 Percent  From Disposal

MR Credits 2.2 – Divert 75 Percent  From Disposal

Asphalt and asphalt pavements are 100 percent recyclable. Where the construction or major renovation requires the removal of an asphalt pavement, then 100 percent of this material can be reintroduced into the manufacturing process for recycling back into new asphalt and asphalt pavement.

MRc5.1-5.2 Regional Materials

MR Credits 5.1 – 10 Percent  Extracted, Processed, and Manufactured Regionally

MR Credits 5.2 – 20 Percent Extracted, Processed, and Manufactured Regionally

Asphalt and asphalt pavements use local sources for the primary constituent (aggregates). Asphalt must be manufactured and placed into an asphalt pavement while hot; therefore, the material must be produced locally to the project site.

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