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The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties

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Published on: June 7, 2020

Estimating construction and demolition debris generation using a materials flow analysis approach.

K M Cochran¹, T G Townsend

¹US Environmental Protection Agency, Office of Resource Conservation and Recovery, 1200 Pennsylvania Ave., NW, Mailcode: 5306P, Washington, DC 20460, USA. Cochran.Kimberly@epa.gov

Waste Management (New York, N.Y.)

|May 18, 2010

Summary

Understanding construction and demolition (C&D) debris is crucial for waste management. A materials flow analysis (MFA) estimated 610-78 × 10(6)Mg of C&D debris in the US in 2002, exceeding prior estimates.

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Area of Science:

Environmental Science
Waste Management Science
Materials Flow Analysis

Background:

Effective management of construction and demolition (C&D) debris requires understanding its magnitude and composition.
Existing national estimates for C&D debris in the US primarily use weight-per-construction-area approximations.
Alternative estimation procedures, common for other waste streams, have not been widely reported for C&D debris.

Purpose of the Study:

To evaluate a materials flow analysis (MFA) approach for estimating C&D debris generation and composition in the US.
To provide a more comprehensive estimate of C&D debris mass and composition for a large region.

Main Methods:

Utilized consumption data for construction materials in the US.
Applied typical waste factors for construction materials purchasing to estimate construction-related solid waste.
Predicted demolition debris based on historical material consumption and average service life data.

Main Results:

The MFA approach estimated approximately 610-78 × 10(6)Mg of C&D debris generated in the US in 2002.
This estimated mass is significantly higher than previous estimates derived from other methodologies.
The findings highlight the substantial scale of the C&D waste stream.

Conclusions:

Materials flow analysis (MFA) provides a viable and robust method for estimating C&D debris generation and composition.
The MFA-derived estimate indicates a larger C&D waste stream than previously recognized.
Accurate C&D debris quantification is essential for developing effective waste management policies and strategies.