Engineering Commons^™

Rights-Of-Way For County Roads, James C. Colvin

Kentucky's Annual Forum on Transportation

No abstract provided.

Design Of Flexible Pavements, A. O. Neiser

Kentucky's Annual Forum on Transportation

No abstract provided.

Soils, Their Classification, And Some Of Their Relations To Highway Construction, O. F. Threlkeld

Kentucky's Annual Forum on Transportation

No abstract provided.

Contractor And Engineer Relations, W. O. Snyder

Kentucky's Annual Forum on Transportation

No abstract provided.

Comments On Paper Prepared By C. T. Warwick On The Subject Of "My Ideas Of An Ideal District Organization As It Relates To Maintenance, Equipment, Traffic And Safety.", R. L. Cambell

Kentucky's Annual Forum on Transportation

No abstract provided.

Comments On Report Given By C. T. Warwick On The Following Subject: "My Idea Of An Ideal Organization As It Relates To Maintenance, Equipment, Traffic And Safety.", Raymond Pile

Kentucky's Annual Forum on Transportation

No abstract provided.

"My Idea Of An Ideal District Organization As It Relates To Maintenance, Equipment, Traffic, And Safety.", C. T. Warwick

Kentucky's Annual Forum on Transportation

No abstract provided.

Maintenance Of Side Ditches, H. R. Ditto

Kentucky's Annual Forum on Transportation

No abstract provided.

Highway Contractors Are Ready To Go, A. N. Carter

Kentucky's Annual Forum on Transportation

No abstract provided.

Highway Educational Opportunities In Kentucky, D. V. Terrell

Kentucky's Annual Forum on Transportation

No abstract provided.

Foreword [1952], R. E. Shaver

Kentucky's Annual Forum on Transportation

No abstract provided.

A Study Of Runoff From Small Drainage Areas And The Openings In Attendant Drainage Structures, Eugene M. West, J. O. Cornell

Kentucky Transportation Center Research Report

In 1926, John T. Lynch read to the Kentucky Academy of Sciences a paper entitled, "The Relation Between Drainage Area and Waterway Required for Culverts and Small Bridges in Kentucky." The paper was based on a study of many small drainage structures then existing in the highway system, and a general evaluation of the performance of the structures in relation to rainfall and runoff from contributing watersheds.

As a result of this report, and in accordance with the suggestions contained in it, the Department of Highways adopted a system of runoff coefficients applicable to different sections of the state and …

A Test Road For The Evaluation Of Sandstone As An Aggregate In Plant-Mix Bituminous Pavements, Ellis G. Williams

Kentucky Transportation Center Research Report

In eastern Kentucky, deep deposits of sandstones and shales overlie the vast deposits of limestones that prevail throughout the central part of the state. Whereas locally available limestones of high quality comprise the major sources of crushed stone or aggregate for highway paving in the central part of the state, some areas of eastern Kentucky are so far removed from sources of these and other high-type aggregates that transportation of materials becomes a major cost item. It is a matter of record that these costs frequently approach or even exceed the cost of the material at the source, Since aggregate …

A Bank Gravel Base Containing Calcium Chloride [Report No. 1], William B. Drake

Kentucky Transportation Center Research Report

This report is concerned with a bank gravel base construction project, and particularly with that part of the base containing calcium chloride as a stabilizing agent. The project was carried out on a relocation of U.S. 62, between Kuttawa in Lyon County and Kentucky Dam on the Tennessee River. A part of the project, as shown on the general location map in Fig. 1, was in Livingston County between the Cumberland and Tennessee Rivers.

Comparative Study Of The Physical Properties Of Traffic Paints, A. C. Peed Jr.

Kentucky Transportation Center Research Report

Traffic or zone paints have become a major item of expenditure for highway departments with their increasing mileages and with the increase in traffic using the highways. Extending the mileage requiring marking and increasing the traffic wear on the marking has necessitated successively larger purchases of paint and associated equipment. As this market became larger increasing numbers of manufacturers have entered the field with a great diversity of formulations having differing properties.

In order to bring some order out of this situation the Research Laboratory in cooperation with the Division of Traffic undertook a study of the paints as offered …

Observation On Seal Coats, Tack Coats, Penetration Macadam, And Blade Spread Hot Mix In 1951, William B. Drake, Harvey J. Field Jr., S. T. Collier

Kentucky Transportation Center Research Report

During the 1950 construction season the Research Division observed the construction of several types of seal coats, a few tack coats and a penetration macadam pavement, A report, covering mostly construction practices on these projects, was submitted to the Research Committee at the February meeting in 1951. The report is titled "Observations on Seal Coats, Tack Coats, and Penetration Macadam Construction in 1950," and dated January, 1951.

A follow-up of most of these projects is submitted here, The performance of the seals was greatly influenced by failure of the bases during the very severe winter of 1950-51. Considerable frost action …

Spherical Lens Optics Applied To Retro-Directive Reflection, James H. Havens, Allie C. Peed Jr.

Kentucky Transportation Center Research Report

This paper describes some expedient applications of elementary optical principles to the evaluation of glass-bead reflectorizing systems for highway signs and markers. 'The optical function of spherical lenses in achieving reflex-reflection is illustrated both photographically and diagrammatically. Various optical designs are discussed and analyzed. By simple geometric optics, the efficiency of these systems is correlated with the practical performance criteria for retro-directive reflectorization.

Clay Mineralogy And Soil Stabilization, James H. Havens, William A. Goodwin

Kentucky Transportation Center Research Report

This paper attempts to resolve a general concept of soil rheology from the standpoint of clay mineralogy, ion-exchange, properties of clay-water systems, and volume relationships existing between clay-water systems and granular structures. Both theory and experimental data are presented.

In the experimental phase, synthetic soils of varying clay contents were prepared from carefully fractionated soil constituents. These were subjected to combined-stress analyses, tests for plasticity characteristics, and detenninations of other physical properties.

Vibratory Compaction Of Base Courses, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

Early this month, on a field trip with Mike Logan of tho Bureau of Public Roads and R. D. Medley, Asst. Director of Design, I had an opportunity to look over a project in Ohio where a vibratory method of compaction was being used in tho construction of a macadam base course, This type of compaction is relatively new, it having been tried for the first time in this country about four years ago, To my knowledge, the first published report on the procedure was made in the Proceedings of the Highway Research Board, Volume 27, page 148, 1947.

This …

Evaluation Of Plant Mix Surface Treatments, William B. Drake

Kentucky Transportation Center Research Report

This project made use of six bituminous materials and ten aggregate gradations in plant mix paving operations. The test sections were installed by state forces in 1942 and 1943. The object was to determine which aggregate gradation with a specific bituminous material was best suited for an application of 75 pounds per square yard surface treatment.

The bituminous materials used were MC-5, RC-5, RT-12, PAC-5 (85 to 100 penetration), PAC-7 (120 to 150 penetration), and PAC-8 (150 to 200 penetration). Twenty sections of MC-5 and ten sections of RC-5 were laid in 1942; all the sections containing the other materials …

Progress Report On Experimental Jointing Installations For Concrete Pavements, S. T. Collier

Kentucky Transportation Center Research Report

Combined in this report are descriptions of the progress of three individual experimental joint installations. Each of these includes a series of two or more experimental joints of special design, installed in concrete pavement in lieu of the conventional types employed in their respective construction projects.

These experimental joints included at one location a prefabricated neoprene seal; and, at two locations, aluminum load transfer devices, All installations were contraction joints only, Periodic inspections of these have been made and will be continued on two of the projects until adequate performance records are established. The condition of concrete about the joints …

Report Of An Inspection Of Pavement Construction On The New Jersey Turnpike, L. E. Gregg

Kentucky Transportation Center Research Report

No abstract provided.

Experience Of An Engineer In Road And Street Work, Wallace W. Sanders

Kentucky's Annual Forum on Transportation

No abstract provided.

Night, Sight, And Light, James H. Havens, Allie C. Peed Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.

Viginia's Experience With 39,000 Miles Of Secondary Roads, L. E. Akers

Kentucky's Annual Forum on Transportation

No abstract provided.

Corrugated Metal Sections — Tests And Proposed Specifications, James E. Black Jr.

Kentucky's Annual Forum on Transportation

No abstract provided.

Construction Of Water Bound Base With Class I Binder And Surface, L. H. Mcwilliams

Kentucky's Annual Forum on Transportation

No abstract provided.

Field Problems On Construction Of Grade And Drain, D. C. Woodward

Kentucky's Annual Forum on Transportation

No abstract provided.

Field Problems In Construction Practices, Nathan Davies

Kentucky's Annual Forum on Transportation

No abstract provided.

Subgrade Bearing Tests Used In Kentucky's Flexible Pavement Design, W. B. Drake

Kentucky's Annual Forum on Transportation

No abstract provided.