Iowa Braille and Sight Saving School, June 30, 2002

State Agency Audit Report

Report of Recommendations to the Iowa Braille and Sight Saving School, June 30, 2003

State Agency Audit Report

Report of Recommendations to the Iowa Braille and Sight Saving School, June 30, 2004

State University Audit Report

Report of Recommendations to the Iowa Braille and Sight Saving School, June 30, 2005

Other Audit Reports - Regent Institutions

Audit report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2006

Audit report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2006

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2007

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2007

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2008

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2008

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2009

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2009

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2010

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2010

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2011

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2011

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2012

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2012

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2013

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa, for the year ended June 30, 2013

Evaluation of Maturity and Pulse Velocity Measurements for PCC Traffic Opening Decisions, HR-380, 1998

Concrete paving is often at a disadvantage in terms of pavement type selection due to the time of curing required prior to opening the pavement to traffic. The State of Iowa has been able to reduce traffic delay constraints through material selection and construction methods to date. Methods for monitoring concrete strength gain and quality have not changed since the first concrete pavements were constructed in Iowa. In 1995, Lee County and the Iowa DOT cooperated in a research project, HR-380, to construct a 7.1 mile (11. 43 km) project to evaluate the use of maturity and pulse velocity nondestructive testing (NDT) methods in the estimation of concrete strength gain. The research identified the pros and cons of each method and suggested an instructional memorandum to utilize maturity measurements to meet traffic delay demands. Maturity was used to reduce the traffic delay opening time from 5-7 days to less than 2 days through the implementation of maturity measurements and special traffic control measures. Recommendations on the development of the maturity curve for each project and the location and monitoring of the maturity thermocouples are included. Examples of equipment that could easily be used by project personnel to estimate the concrete strength using the maturity methods is described.

Strength Development of Concrete Based on Maturity and Pulse Velocity, MLR-95-03, 1995

The effect of curing temperature, in the range of 4.4 to 22.8 degrees C (40 to 73 degrees F), on strength development was studied based on the maturity and pulse velocity measurements in this report. The strength-maturity relationships for various mixes using a Type I cement and using a Type IP cement, respectively, were experimentally developed. The similar curves for early age strength development of both the patching concrete, using a Type I cement with the addition of calcium chloride, and the fast track concrete, using a Type III cement and fly ash, have also been proposed. For the temperature ranges studied, the strength development of concrete can be determined using a pulse velocity measurement, but only for early ages up to 24 hours. These obtained relationships can be used to determine when a pavement can be opened to traffic. The amount of fly ash substitution, up to 30%, did not have a significant influence on the strength-maturity relationship.

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa for the year ended June 30, 2014

Report on the Iowa Braille and Sight Saving School, Vinton, Iowa for the year ended June 30, 2014