Sustainable Development and Concrete Technology, May 2004

For a variety of reasons, the concrete construction industry is not sustainable. First, it consumes huge quantities of virgin materials. Second, the principal binder in concrete is portland cement, the production of which is a major contributor to greenhouse gas emissions that are implicated in global warming and climate change. Third, many concrete structures suffer from lack of durability which has an adverse effect on the resource productivity of the industry. Because the high-volume fly ash concrete system addresses all three sustainability issues, its adoption will enable the concrete construction industry to become more sustainable. In this paper, a brief review is presented of the theory and construction practice with concrete mixtures containing more than 50% fly ash by mass of the cementitious material. Mechanisms are discussed by which the incorporation of high volume of fly ash in concrete reduces the water demand, improves the workability, minimizes cracking due to thermal and drying shrinkage, and enhances durability to reinforcement corrosion, sulfate attack, and alkali-silica expansion. For countries like China and India, this technology can play an important role in meeting the huge demand for infrastructure in a sustainable manner.

Sheldon Community School District, Independent Auditor's Reports, Basic Financial Statements and Supplementary Information, Schedule of Findings, June 30, 2005

Community School District Audit Report

Community Colleges for International Development, Inc., Independent Auditor's Reports, Financial Statements, June 30, 2005

Community College Audit Reports

Report on Compliance with IPERS Requirements for Certain Members from the LuVerne Community School District, 2005

Report on Compliance with IPERS Requirements for Certain Members from the LuVerne Community School District

Iowa Community Empowerment Newsletter, December 2005, Vol.6, no.6

Monthly newsletter for the Iowa Department of Public Health

Iowa Community Empowerment Newsletter, June 2001, Vol.2, no.3

Monthly newsletter for the Iowa Department of Public Health

Iowa Community Empowerment Newsletter, March 2003, Vol.4, no.2

Monthly newsletter for the Iowa Department of Public Health

Iowa Community Empowerment Newsletter, June 2005, Vol.6, no.3

Monthly newsletter for the Iowa Department of Public Health

Iowa Community Empowerment Newsletter, October 2005, Vol.6, no.5

Monthly newsletter for the Iowa Department of Public Health

Indian Hills Community College, Independent Auditor's Reports, Basic Financial Statements and Supplementary Information, Schedule of Findings and Questioned Costs, June 30, 2005

Community College Audit Reports

Clarke Community School District, Independent Auditor's Reports, Basic Financial Statements and Supplementary Information, Schedule of Findings and Questioned Costs, June 30, 2005

Community School District Audit Report

KCCK-FM Radio, A Public Telecommunications Entity, Operated by Kirkwood Community College, Independent Auditor's Reports, Basic Financial Statements, June 30, 2005

Community College Audit Reports

Human Rights Community Action Performance Report, FY 2004

Agency Performance Report

Human Rights Community Action Performance Report, FY 2005

Agency Performance Report

Community Action In Iowa-Annual Report, 2004

This report details the efforts of the community action network in Iowa.