Caltrans es la primera administración de carretera en EE.UU que incorpora el uso de DAP’s de mezclas bituminosas para evaluar la emisiones de GEI

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Environmental Product Declarations

The purpose of the Caltrans Environmental Product Declaration (EPD) Implementation Project is to collect EPDs for materials incorporated into construction projects in order to quantify the Global Warming Potential (GWP) emissions in the manufacturing of those materials for our transportation system.

Five major building materials put into service by Caltrans have been identified to include Concrete, Carbon Steel Rebar, Structural Steel (SS), Asphalt, and Aggregate and will be the initial set of materials to which EPDs will be collected and used for determining baseline GWP emissions.

The Buy Clean California Act, originally signed into law on October 15, 2017 and amended on June 27, 2018, mandates collection of EPDs for eligible materials (carbon steel rebar, structural steel, flat glass, and mineral wool board insulation) to which this project will include in its deliverables.

Project Updates

Pilot Projects Requiring EPDs (updated 12/28/2018, additional projects to be added)

Project EA Estimated Advertise Date Eligible Materials per Buy Clean California Act Concrete1 Asphalt Aggregate
Rebar Structural Steel Flat Glass Mineral Wool Board Insulation
05-1F740
February 28, 2019
02-1H110
April 15, 2019
01-0F960
May 5, 2019
02-4G500
June 3, 2019
01-0E040
July 25, 2019

1Concrete pilot projects will continue after posting of new product category rules

✔ Indicates pilot project has anticipated quantity of material meeting threshold to require EPD as set forth in NSSP

Product Category Rules

Use the product category rule in effect on the date of bid opening unless otherwise authorized. Where a product category rule for material or product has expired wihtout replacement as of the Contract award date, no environmental product declaration is required for that particular material or product.

Where separate bid item exists (Pilot Projects only): Submit a schedule of values for material and product environmental product declarations within 15 days after Contract approval.

Material or Product Applicable PCR Range of Applicability
Carbon steel rebar North American Product Category Rule for Designated Steel Construction Products May 5, 2015 / May 5, 2020
Structural steel North American Product Category Rule for Designated Steel Construction Products May 5, 2015 / May 5, 2020
Flat glass GANA Product Category Rule for Flat Glass – UN CPC 3711 March 31, 2014 / March 31, 2019
Mineral wool board insulation Product Category Rule (PCR) Guidance for Building-Related Products and Services Part B: Building Envelope Thermal Insulation EPD Requirements April 11, 2018 / April 11, 2023
Aggregate ASTM International Product Category Rules for Preparing an Environmental Product Declaration for Construction Aggregates: Natural Aggregate, Crushed Concrete, and Iron/Steel Furnace Slag January 2017 / January 2022
Asphalt concrete National Asphalt Pavement Association Product Category Rules for Asphalt Mixtures January 31, 2017 / January 2022
Concrete North America Product Category Rules for ISO 14025 Type III Environmental Product Declarations and GHG Protocol Compliant Product ‘Carbon Footprint’ of Concrete November 30, 2012 / March 4, 2019

Fuente de la noticia: https://www.c40.org/researches/municipality-led-circular-economy

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