Agreed-upon procedures report on the Villisca Municipal Power Plant for the period January 1, 2014 through December 31, 2014

Agreed-upon procedures report on the Villisca Municipal Power Plant for the period January 1, 2014 through December 31, 2014

Recycling of Asphalt Concrete From I-80 in Cass County, HR-1011, 1978

Approximately 40,000 tons of deteriorated asphalt concrete has been removed from Interstate 80 in Cass County and stockpiled. Laboratory tests indicate that this material has considerable value when upgraded with new aggregate and asphalt cement. This report documents the procedures used and results obtained on an experimental recycling project. It was demonstrated that present drum mixing-recycling equipment and procedures can be used to utilize this material with satisfactory results. Laboratory analyses of material components and mixtures were performed; these analyses indicate mixture can be produced that is uniform, stable, and very closely resembles mixture produced with all virgin material. A 1700 foot long test section was constructed on US 169 in Kossuth County wherein salvaged asphalt concrete from I-80 in Cass County was utilized. The salvaged mix was blended with virgin aggregate and recycled through a modified drum mixing plant, the reprocessed mixture was satisfactorily placed 1 1/2 inches thick as a resurfacing course on an old PCC pavement. An inspection of the test section was made in December of 1978 to evaluate the performance after one full year of service. There was no evidence of rutting or shoving from traffic. The surface does, however, have a very dry and somewhat ravelled appearance. This can be related to a low asphalt content in the mix and some temperature control problems which were difficult to get fully corrected on such a short project and with a short supply of readily available materials.

Evaluation of Asphalt Mixes Made from Reclaimed Concrete Aggregates, MLR-85-07, 1986

Three comparable hot mixed asphalt paving mixes were produced using two different aggregates produced from reclaimed portland cement concrete paving and one from a crushed limestone aggregate. These were subjected both dry and soaked to indirect tensile tests to determine the wet strength retention. One mix made from reclaimed concrete demonstrated a slightly better strength retention than the limestone mix and the other less. Satisfactory asphalt paving mixes can be produced from reclaimed concrete pavements but the increased asphalt demand (about 1%) negates part of the potential savings.

Fourth Report of the Iowa Library Commission Made to the Governor of Iowa, 1906-1908

1906-1908 Iowa Library Commission Report made to the Governor of Iowa.

Fifth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1, 1908 to June 30, 1910

1908-1910 Iowa Library Commission Report made to the Governor of Iowa.

Sixth Report of the Iowa Library Commission Made to the Governor of Iowa 1910-1912

1910-1912 Iowa Library Commission Report made to the Governor of Iowa.

Seventh Report of the Iowa Library Commission Made to the Governor of Iowa, 1912-1914

1912-1914 Iowa Library Commission Report made to the Governor of Iowa.

1920 Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1, 1918 to June 30, 1920

1918-1920 Iowa Library Commission Report made to the Governor of Iowa.

Thirteenth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1, 1924 to June 30, 1926

1924-1926 Iowa Library Commission Report made to the Governor of Iowa.

Fourteenth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1, 2926 to June 30, 1928

1926-1928 Iowa Library Commission Report made to the Governor of Iowa.

Fifteenth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1, 1928 to June 30, 1930 1928-1930

1928-1930 Iowa Library Commission Report made to the Governor of Iowa.

Sixteenth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1, 1930 to June 30, 1932

1930-1932 Iowa Library Commission Report made to the Governor of Iowa.

Seventeenth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1, 1932 to June 30, 1934

1932-1934 Iowa Library Commission Report made to the Governor of Iowa.

Eighteenth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biannual Period July 1,1934 to June 30, 1936

1934-1936 Iowa Library Commission Report made to the Governor of Iowa.

Nineteenth Report of the Iowa Library Commission Made to the Governor of Iowa for the Biennial Period July 1,1936 to June 30, 1938

1936-1938 Iowa Library Commission Report made to the Governor of Iowa.