Waste Reduction, Construction and Demolition Debris: Guide for Building, Construction and Environmental Professionals, Revised November 2008

This document is intended to lay the foundation for resource reduction strategies in new construction, renovation and demolition. If you have an innovative idea or information that you believe should be included in future updates of this manual please email Shelly Codner at scodner@region12cog.org or Jan Loyson at Jan.Loyson@Iowalifechanging.com. Throughout this manual, we use the term “waste reduction” to define waste management initiatives that will result in less waste going to the landfill. In accordance with the waste management hierarchy these practices include reducing (waste prevention), reusing (deconstruction and salvage), recycling and renewing (making old things new again) - in that order. This manual will explain what these practices are and how to incorporate them into your projects.

Evaluation of Fly Ash in Portland Cement Concrete Paving in Woodbury County, Iowa, HR-201, Construction Report, 1979

The earliest overall comprehensive work on the use of fly ash in concrete was reported by Davis and Associates of the University of California in 1937. Since that time there have been numerous applications of the use and varying proportions of fly ash in portland cement concrete mixes. Fly ash is a pozzolanic powdery by-product of the coal combustion process which is recovered from flue gases and is generally associated with electric power generating plants. Environmental regulations enacted in recent years have required that fly ash be removed from the flue gases to maintain clean air standards. This has resulted in an increased volume of high quality fly ash that is considered a waste product or a by-product that can be utilized in products such as portland cement concrete. There are several sources of the high quality fly ash located in Iowa currently producing a combined total of 281,000 tons of material annually. Due to recent cement shortages and the rapidly increasing highway construction costs, the Iowa Department of Transportation has become interested in utilizing fly ash in portland cement concrete paving mixes. A preliminary review of the Iowa Department of Transportation Materials Laboratory study indicates that a substitution of fly ash for portland cement, within limits, is ·not detrimental to the overall concrete quality. Also the use of fly ash in concrete would reduce the cement consumption as well as provide a potential cost savings in areas where high quality fly ash is available without excessive transportation costs. The previously expressed concerns have shown the need for a research project to develop our knowledge of fly ash replacement in the Iowa Department of Transportation portland cement concrete paving mixes.

Review of Alternative Distribution Methodologies for the Street Construction Fund of the Cities, December 26, 2003

Review of Alternative Distribution Methodologies for the Street Construction Fund of the Cities

Strategy Report for Electronics Waste Management in Iowa, December 30, 2003

Strategy Report for Electronics Waste Management

Wayne-Ringgold-Decatur County Solid Waste Management Commission, June 30, 2001 & June 30, 2002

Other Audit Reports - Waste Management

Pocahontas County Solid Waste Commission, June 30, 2001 & June 30, 2002

Other Audit Reports

Jones County Solid Waste Management Commission, June 30, 2001 & June 30, 2002

Other Audit Reports

Hardin County Sanitary Solid Waste Disposal Commission, June 30, 2002

Other Audit Reports

Delaware County Solid Waste Disposal Commission, June 30, 2001 & June 30, 2002

Other Audit Reports

Crawford County Area Solid Waste Agency Commission, June 30, 2001 & June 30, 2002

Other Audit Reports

Butler County Solid Waste Commission, June 30, 2001 & June 30, 2002

Other Audit Reports

Jones County Solid Waste Management Commission, June 30, 2002 & June 30, 2003

Other Audit Reports

Hardin County Sanitary Solid Waste Disposal Commission, June 30, 2003

Other Audit Reports

Shelby County Area Solid Waste Agency, June 30, 2002 & June 30, 2003

Other Audit Reports

Butler County Solid Waste Commission, June 30, 2002 & June 30, 2003

Other Audit Reports