Development of Non-Petroleum-Based Binders for Use in Flexible Pavements – Phase II, TR-650, 2015

Bio-binders can be utilized as asphalt modifiers, extenders, and replacements for conventional asphalt in bituminous binders. From the rheology results of Phase I of this project, it was found that the bio-binders tested had good performance, similar to conventional asphalt, except at low temperatures. Phase II of this project addresses this shortcoming and evaluates the Superpave performance of laboratory mixes produced with the enhanced bio-binders. The main objective of this research was to develop a bio-binder capable of replacing conventional asphalt in flexible pavements by incorporating ground tire rubber (GTR) into bio-oil derived from fast pyrolysis of agriculture and forestry residues. The chemical compatibility of the new bio-binder with GTR was assessed, and the low-temperature performance of the bio-binders was enhanced by the use of GTR. The newly developed binder, which consisted of 80 percent conventional binder and 20 percent rubber-modified bio-oil (85 percent bio-oil with 15 percent GTR), was used to produce mixes at two different air void contents, 4 and 7 percent. The laboratory performance test results showed that the performance of the newly developed bio-binder mixes is as good as or better than conventional asphalt mixes for fatigue cracking, rutting resistance, moisture sensitivity, and low-temperature cracking. These results need to be validated in field projects in order to demonstrate adequate performance for this innovative and sustainable technology for flexible pavements.

Development of Bio-Based Polymers for Use in Asphalt, TR-639, 2014

Asphalt binder is typically modified with poly type (styrene-butadiene-styrene or SBS) polymers to improve its rheological properties and performance grade. The elastic and principal component of SBS polymers is butadiene. For the last decade, butadiene prices have fluctuated and significantly increased, leading state highway agencies to search for economically viable alternatives to butadiene based materials. This project reports the recent advances in polymerization techniques that have enabled the synthesis of elastomeric, thermoplastic, block-copolymers (BCPs) comprised of styrene and soybean oil, where the “B” block in SBS polymers is replaced with polymerized triglycerides derived from soybean oil. These new breeds of biopolymers have elastomeric properties comparable to well-established butadiene-based styrenic BCPs. In this report, two types of biopolymer formulations are evaluated for their ability to modify asphalt binder. Laboratory blends of asphalt modified with the biopolymers are tested for their rheological properties and performance grade. Blends of asphalt modified with the biopolymers are compared to blends of asphalt modified with two commonly used commercial polymers. The viscoelastic properties of the blends show that biopolymers improve the performance grade of the asphalt to a similar and even greater extent as the commercial SBS polymers. Results shown in this report indicate there is an excellent potential for the future of these biopolymers as economically and environmentally favorable alternatives to their petrochemically-derived analogs.

Face the Facts: Topics to Discuss Now with Your Aging Parents, 2003

The The Eldercare Locator, a nationwide service funded by the U.S. Administration on Aging that links older consumers and their families to local aging services, produced this guide to help families “face the facts” about these important topics. The overview below addresses some key areas of concern, suggested questions to ask, and ways in which families might initiate conversations about these often difficult to discuss topics with their aging parents.

Iowa NAPIS (National Aging Program Information System) Activity Report State Fiscal Year 2004

INAPIS (National Aging Program Information System) Activity Report collects and reports service/performance data and related program management information to the federal and state government. This report shows the number of older Iowans who receive services and the number of units by service category from Title III funding of the Older Americans Act, the Administration on Aging (AoA) and limited state general fund dollars. Additionally, it shows the number of persons served by individual services and total "unduplicated" client count across all services. In other words, if you add the total number of clients from all services it is higher than the actual number of persons served across all services, because some people need and receive more than one service.

INAPIS(National Aging Program Information System) Activity Report State Fiscal Year 2004, March 3, 2005, Vers. 1

This report shows the number of older Iowans and units of service by service category from Title III funding of the Older Americans Act, through the Administration on Aging (AoA), the Iowa Senior Living Trust Fund and limited state general fund dollars. DEA hopes that this document and the information contained within can be a useful tool for making informed planning decisions. The information provided in this report is the result of hard work and dedication from the Iowa Aging Network who work as a team with the Iowa Department of Elder Affairs toward it’s mission: "To provide advocacy, educational, and prevention services to older Iowans so they can find Iowa a healthy, safe, productive, and enjoyable place to live and work.

Iowa Department on Aging Office of the State Long-Term Care Ombudsman Annual Report 2009, (Federal Fiscal Year October 1, 2008 through September 30, 2009), January 2010.

The State Long-Term Care Ombudsman program operates as a unit within the Iowa Department on Aging. Duties of all long-term care ombudsmen are mandated by the Older Americans Act. This office serves people living in nursing facilities, skilled nursing facilities, residential care facilities, nursing facilities in hospitals, elder group homes and assisted living programs. In order to carry out all of the mandates of the Older Americans Act this office recommends to increase the number of staff and create a volunteer ombudsman program. NOTE: The second file includes a correction to the report on page 8.

Healthy Aging Update, December 2, 2005, Vol. 1, no. 1

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Healthy Aging Update, February 1, 2006, Vol. 1, no. 2

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Healthy Aging Update, April 1, 2006, Vol. 1, no. 3

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Healthy Aging Update, June 2, 2006, Vol. 1, no. 4

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Healthy Aging Update, August 1, 2006, Vol. 1, no. 5

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Healthy Aging Update, October 6, 2006, Vol. 1, no. 6

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Healthy Aging Update, December 8, 2006, Vol. 2, no. 1

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Healthy Aging Update, February 6, 2007, Vol. 2, no. 2

This bimonthly electronic newsletter will provide information and resources on nutrition and health promotion and disease prevention. The Healthy Aging Update is produced for informal and educational purposes only. The newsletter will be distributed electronically and posted on the Department’s website at www.state.ia.us/elderaffairs.

Report on Aging Resources of Central Iowa for the period July 1, 2005 through June 30, 2009

Report on Aging Resources of Central Iowa for the period July 1, 2005 through June 30, 2009